{"title":"Weights","description":"","products":[{"product_id":"adam-equipment-astm-1-1g-500g-calibration-weight-set","title":"Adam Equipment ASTM 1 1g - 500g Calibration Weight Set, 1g-500g Range, ASTM Class 1","description":"\u003ch2\u003eAdam Equipment ASTM Class 1 Calibration Weight Set — 1g to 500g for Analytical Balance Verification\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM Class 1 calibration weight set covering 1g to 500g provides high-precision reference masses for calibrating analytical and precision balances where exacting tolerances are required. Manufactured from highly polished stainless steel at a density of 7.96 g\/cm³ and meeting ANSI\/ASTM E617 standards, this set is suited to laboratory, pharmaceutical, and research applications where the accuracy of the calibration weight directly determines the validity of the measurement result.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eASTM Class 1 tolerance\u003c\/strong\u003e — one of the highest precision levels in the ANSI\/ASTM E617 classification system\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1g to 500g range\u003c\/strong\u003e covers the common calibration span for analytical and precision laboratory balances\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHighly polished stainless steel at 7.96 g\/cm³\u003c\/strong\u003e minimizes air resistance deviation and resists surface oxidation\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMeets ANSI\/ASTM E617\u003c\/strong\u003e national weight standards for traceable calibration programs\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWhite cotton gloves included\u003c\/strong\u003e to prevent oil and particulate contamination during handling\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eIndividual weight denominations\u003c\/strong\u003e covering the full 1g to 500g range for comprehensive balance verification\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRugged stainless steel construction\u003c\/strong\u003e maintains mass values through years of regular calibration use\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eASTM Class 1 represents one of the most precise weight classifications in the ASTM E617 hierarchy, making this set appropriate wherever analytical balance accuracy must be verified or adjusted to the highest standard. The highly polished surface minimizes the boundary layer effects that can cause small deviations in air buoyancy-sensitive measurements. Each weight in the set is individually finished and inspected to confirm it meets Class 1 tolerances before leaving the factory, ensuring the complete set delivers consistent, traceable reference accuracy across all denominations.\u003c\/p\u003e\n \u003cp\u003eThe 1g to 500g coverage provides a practical and comprehensive selection of reference masses for the majority of analytical balance calibration tasks encountered in laboratory, pharmaceutical quality control, and precision research settings. Cotton gloves are included because even minor surface contamination from fingerprint oils can affect readings at this level of precision — a consideration that distinguishes Class 1 calibration from less exacting weight standards.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibration and routine verification of analytical laboratory balances\u003c\/li\u003e\n \u003cli\u003ePharmaceutical weighing equipment qualification under GMP requirements\u003c\/li\u003e\n \u003cli\u003eResearch and academic laboratory balance performance maintenance\u003c\/li\u003e\n \u003cli\u003eQuality control in precision manufacturing where sub-milligram accuracy is required\u003c\/li\u003e\n \u003cli\u003eMetrology and standards laboratory reference calibration work\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM Class 1 1g–500g Set?\u003c\/h3\u003e\n \u003cp\u003eThis ASTM Class 1 set delivers the reference precision required to maintain analytical balance accuracy in demanding laboratory and regulated production environments. The polished stainless steel construction resists corrosion and surface wear through many calibration cycles, preserving the mass values that underpin the accuracy of the verification process. Supplied with cotton gloves for contamination-free handling, this set provides everything needed for a complete and compliant analytical balance calibration procedure in the 1g to 500g range.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765875695829,"sku":"ASTM 1 1g - 500g Calibration Weight Set","price":1258.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_1g_-_500g_calibration_weight_set.jpg?v=1778276780"},{"product_id":"adam-equipment-astm-1-1g-200g-calibration-weight-set","title":"Adam Equipment ASTM 1 1g - 200g Calibration Weight Set, 1g-200g Range, ASTM Class 1","description":"\u003ch2\u003eAdam Equipment ASTM Class 1 Calibration Weight Set — Compact 1g to 200g Precision Range\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM Class 1 calibration weight set in the 1g to 200g range is a focused, high-precision reference set for analytical and precision balance calibration where the upper capacity falls within 200g. Constructed from highly polished stainless steel to ANSI\/ASTM E617 Class 1 specifications, this compact set provides the tight tolerances required by pharmaceutical, gemological, and research laboratories working with sub-200g balance ranges.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eASTM Class 1 precision\u003c\/strong\u003e meeting one of the highest tolerance standards in ANSI\/ASTM E617 for analytical balance calibration\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1g to 200g coverage\u003c\/strong\u003e targeted at analytical and precision balances operating within the 200g capacity range\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHighly polished stainless steel at 7.96 g\/cm³\u003c\/strong\u003e density minimizes surface-related mass variation and resists oxidation\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eComplies with ANSI\/ASTM E617\u003c\/strong\u003e for documented, traceable calibration programs\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWhite cotton gloves included\u003c\/strong\u003e — essential for protecting weight surfaces at this level of precision\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eIndividual weight denominations\u003c\/strong\u003e provide precise, incremental calibration points across the 200g span\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact set volume\u003c\/strong\u003e for straightforward storage in a controlled laboratory environment\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eWhen a laboratory's primary calibration requirement falls within a 200g upper limit, the 1g to 200g ASTM Class 1 set provides a tailored reference range without the additional cost or storage space of weights exceeding that threshold. Each denomination is produced to ASTM Class 1 tolerances, and the polished stainless steel finish maintains calibration integrity by resisting the surface oxidation and contamination that could alter mass values over repeated calibration cycles in a laboratory environment.\u003c\/p\u003e\n \u003cp\u003eThe compact nature of this set simplifies storage in a climate-controlled cabinet or safe, reducing exposure to humidity, temperature fluctuations, and airborne contaminants that can gradually affect precision weight values over time. White cotton gloves are included because, at ASTM Class 1 tolerance, even minor contamination from fingerprint oils or fine particulates represents a meaningful source of measurement error during balance verification.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibration of sub-200g range analytical and high-precision balances\u003c\/li\u003e\n \u003cli\u003ePharmaceutical active ingredient development and dosage formulation balance verification\u003c\/li\u003e\n \u003cli\u003eGemstone, precious metal, and fine jewelry balance calibration\u003c\/li\u003e\n \u003cli\u003eAcademic and research laboratory balance routine maintenance programs\u003c\/li\u003e\n \u003cli\u003eMetrology and accreditation laboratory reference weight verification\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM Class 1 1g–200g Set?\u003c\/h3\u003e\n \u003cp\u003eThis set provides a precise-fit calibration solution for laboratories whose calibration requirements are concentrated within the 200g range. ASTM Class 1 tolerance delivers confidence that each reference mass is accurate enough for demanding analytical balance verification, while the polished stainless steel construction maintains long-term stability across many calibration cycles. Cotton gloves and the compact set format make this a complete, immediately usable precision calibration kit.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765875728597,"sku":"ASTM 1 1g - 200g Calibration Weight Set","price":841.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_1g_-_200g_calibration_weight_set.jpg?v=1778276795"},{"product_id":"adam-equipment-astm-2-1g-500g-calibration-weight-set","title":"Adam Equipment ASTM 2 1g - 500g Calibration Weight Set, 1g-500g Range, ASTM Class 2","description":"\u003ch2\u003eAdam Equipment ASTM Class 2 Calibration Weight Set — 1g to 500g for Precision Balance Calibration\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM Class 2 calibration weight set covering 1g to 500g is engineered for precision balance calibration in laboratories and production facilities where Class 2 tolerances are appropriate. Produced from stainless steel at 7.9 g\/cm³ and conforming to ANSI\/ASTM E617, this set occupies the practical middle tier of the ASTM classification system, offering greater precision than Class 3 and 4 general-purpose weights without the higher cost of Class 1 analytical-grade references.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eASTM Class 2 tolerance\u003c\/strong\u003e — suited to precision balance calibration in quality laboratories and regulated production\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1g to 500g range\u003c\/strong\u003e provides comprehensive verification coverage for a wide span of precision balance capacities\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eStainless steel at 7.9 g\/cm³\u003c\/strong\u003e for durable, stable, corrosion-resistant reference masses\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eANSI\/ASTM E617 compliant\u003c\/strong\u003e for documented, traceable calibration records supporting audit requirements\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWhite cotton gloves included\u003c\/strong\u003e to protect weight surfaces from contamination during handling\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eComplete set of individual denominations\u003c\/strong\u003e from 1g through 500g for thorough balance linearity verification\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eAppropriate for GMP and quality management system\u003c\/strong\u003e calibration programs requiring intermediate tolerance levels\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eASTM Class 2 weights represent a well-balanced choice for routine laboratory and industrial precision balance calibration. They provide higher accuracy than the Class 3 and 4 weights used for bench and general-purpose scale verification, yet remain more cost-effective than the Class 1 sets required for calibrating analytical instruments at the very highest readability levels. For precision balances used in pharmaceutical preparation, environmental testing, and food science, Class 2 is frequently the specified tolerance level.\u003c\/p\u003e\n \u003cp\u003eThe stainless steel material at 7.9 g\/cm³ provides corrosion resistance and physical durability that holds up under the regular handling expected in a facility-wide calibration program. The 1g to 500g spread gives calibration technicians sufficient reference points to verify balance performance across a meaningful portion of the instrument's operating range, supporting comprehensive verification of linearity, repeatability, and accuracy at multiple points within the capacity span.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine calibration of precision balances in quality control and research laboratories\u003c\/li\u003e\n \u003cli\u003ePharmaceutical production and formulation equipment verification programs\u003c\/li\u003e\n \u003cli\u003eFood science, nutrition analysis, and beverage production balance calibration\u003c\/li\u003e\n \u003cli\u003eEnvironmental monitoring and materials testing balance maintenance\u003c\/li\u003e\n \u003cli\u003eIndustrial production weighing equipment verification where Class 2 is specified\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM Class 2 1g–500g Set?\u003c\/h3\u003e\n \u003cp\u003eFor environments where precision balance accuracy is required and Class 2 tolerances are appropriate, this set provides a dependable, ANSI\/ASTM E617 traceable calibration solution. The stainless steel weights resist wear through repeated use in active calibration programs, and the comprehensive 1g to 500g range supports thorough balance verification without needing multiple smaller sets to cover the full capacity span. Cotton gloves ensure the weights remain uncontaminated for consistent performance over an extended service life.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765875761365,"sku":"ASTM 2 1g - 500g Calibration Weight Set","price":1092.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_1g_-_500g_calibration_weight_set.jpg?v=1778276801"},{"product_id":"adam-equipment-astm-4-1g-200g-calibration-weight-set","title":"Adam Equipment ASTM 4 1g - 200g Calibration Weight Set, 1g-200g Range, ASTM Class 4","description":"\u003ch2\u003eAdam Equipment ASTM Class 4 Calibration Weight Set — 1g to 200g for Bench and Portable Scales\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM Class 4 calibration weight set provides 1g to 200g of reference masses for verifying bench scales, top-loading balances, and compact portable weighing devices where Class 4 tolerance is specified. Constructed from stainless steel and meeting ANSI\/ASTM E617 standards, this cost-effective set is the appropriate choice for general-purpose calibration in workshop, retail, and light industrial environments that do not require the tighter tolerances of Class 1 or 2.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eASTM Class 4 tolerance\u003c\/strong\u003e appropriate for bench scales, top-loading balances, and compact portable scales\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1g to 200g coverage\u003c\/strong\u003e for a concise range of calibration points covering the lower capacity region\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eStainless steel construction\u003c\/strong\u003e provides corrosion resistance and durability through regular use and handling\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eANSI\/ASTM E617 compliant\u003c\/strong\u003e for traceable, standards-documented calibration records\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCotton gloves included\u003c\/strong\u003e to protect weight surfaces from contamination during handling\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eIndividual weight denominations\u003c\/strong\u003e from 1g to 200g for stepwise, incremental scale verification\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eEconomical Class 4 option\u003c\/strong\u003e for calibration programs where analytical-grade tolerances are not required\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eASTM Class 4 calibration weights are positioned in the classification system for applications where reliable, cost-effective reference masses are needed to verify instruments operating at bench-scale or portable-scale accuracy levels. The 1g to 200g range is well suited to compact balances and bench scales with capacities in the lower portion of the gram range, providing calibration points that cover the instrument's linearity from its lightest measurable increment through the 200g reference. Each denomination is produced to Class 4 tolerances, ensuring the set supports accurate and consistent calibration results for the target instrument types.\u003c\/p\u003e\n \u003cp\u003eThe stainless steel material ensures the weights maintain their physical integrity through regular use in workshop, warehouse, or general laboratory environments. The compact 200g upper limit makes this set easy to transport when calibration technicians service multiple scales across a facility. Pairing this set with instruments of appropriate readability and capacity ensures that the Class 4 tolerances are suitable for the verification task at hand.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eBench scale calibration in light manufacturing, packaging, and assembly environments\u003c\/li\u003e\n \u003cli\u003eCompact and portable balance verification for field calibration technicians\u003c\/li\u003e\n \u003cli\u003eClassroom and educational laboratory weighing equipment maintenance\u003c\/li\u003e\n \u003cli\u003eRetail counter scale verification for lighter commodity categories\u003c\/li\u003e\n \u003cli\u003eGeneral-purpose quality control weight checks in production facilities\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM Class 4 1g–200g Set?\u003c\/h3\u003e\n \u003cp\u003eWhen the application calls for dependable, ANSI\/ASTM E617 traceable calibration without the added cost of higher-class weights, this Class 4 set is a sound and practical choice. Its stainless steel construction withstands the handling demands of active calibration programs, and the focused 1g to 200g range covers the most common calibration requirements for bench and compact portable scales. Cotton gloves are included to help maintain weight cleanliness and preserve accuracy across repeated calibration cycles.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765875794133,"sku":"ASTM 4 1g - 200g Calibration Weight Set","price":561.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_1g_-_200g_calibration_weight_set.jpg?v=1778276807"},{"product_id":"adam-equipment-astm-0-1mg-50g-calibration-weight-set","title":"Adam Equipment ASTM 0 1mg - 50g Calibration Weight Set, 1mg-50g Range, ASTM Class 0","description":"\u003ch2\u003eAdam Equipment ASTM Class 0 Calibration Weight Set — Ultra-Precision 1mg to 50g for Microbalances\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM Class 0 calibration weight set represents the highest precision tier in the ANSI\/ASTM E617 classification, covering a 1mg to 50g range intended for ultra-sensitive microbalances, semi-microbalances, and primary reference laboratory instruments. Manufactured from highly polished stainless steel at a density of 7.96 g\/cm³, these weights deliver the exceptional accuracy demanded by metrological reference work, pharmaceutical micro-dosing verification, and advanced research applications requiring sub-milligram reference confidence.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eASTM Class 0 — the highest precision class\u003c\/strong\u003e defined in the ANSI\/ASTM E617 standard\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1mg to 50g range\u003c\/strong\u003e specifically targeted at microbalance and semi-microbalance calibration requirements\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHighly polished stainless steel at 7.96 g\/cm³\u003c\/strong\u003e maximizes dimensional stability and minimizes air buoyancy correction uncertainty\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUltra-tight mass tolerances\u003c\/strong\u003e for primary reference laboratory and accreditation-level metrological work\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWhite cotton gloves included\u003c\/strong\u003e — critical for preventing mass alteration from fingerprint contamination at this precision level\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eIndividually finished and inspected\u003c\/strong\u003e to Class 0 specifications with full measurement traceability\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eComprehensive 1mg to 50g coverage\u003c\/strong\u003e with denominations appropriate for microbalance span verification\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eASTM Class 0 is the apex of the ANSI\/ASTM E617 weight classification system, specified for calibrating instruments where even microscopic mass differences are significant. The 1mg to 50g range is particularly relevant for microbalances and semi-microbalances where single-milligram reference weights are needed to verify span accuracy at the finest readability level. The 7.96 g\/cm³ material density is chosen specifically to minimize the influence of air buoyancy corrections — a factor that becomes significant in precision measurements at the Class 0 level in standard laboratory atmospheric conditions.\u003c\/p\u003e\n \u003cp\u003eAt this precision tier, proper handling technique is as critical as the weight's manufacturing quality. The included white cotton gloves prevent the transfer of oils, moisture, and particulates from the operator's hands, as even microscopic deposits can measurably alter the mass of the lightest weights in the set. Storage in a controlled environment — stable temperature, low humidity, free from vibration — is strongly recommended to preserve mass values between calibration events and maintain the integrity of the ASTM Class 0 classification throughout the weight's service life.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePrimary reference laboratory calibration of microbalances and ultra-microbalances\u003c\/li\u003e\n \u003cli\u003ePharmaceutical micro-dosing formulation and active ingredient balance verification\u003c\/li\u003e\n \u003cli\u003eMetrology institute and accreditation laboratory reference and transfer weight work\u003c\/li\u003e\n \u003cli\u003eSemiconductor and electronics precision component mass measurement\u003c\/li\u003e\n \u003cli\u003eAdvanced materials characterization research requiring sub-milligram reference accuracy\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM Class 0 Set?\u003c\/h3\u003e\n \u003cp\u003eFor laboratories and facilities where no margin of calibration uncertainty is acceptable at the milligram level, the ASTM Class 0 weight set provides the reference accuracy that microbalance verification demands. The highly polished stainless steel construction resists contamination and maintains mass values through a long service life of careful use, while the included gloves support correct handling protocols from the first calibration. This set is the definitive choice when measurement traceability at the highest possible precision level is non-negotiable.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765875826901,"sku":"ASTM 0 1mg - 50g Calibration Weight Set","price":2941.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_0_1mg_-_50g_calibration_weight_set.jpg?v=1778276821"},{"product_id":"adam-equipment-astm-4-1g-1kg-calibration-weight-set","title":"Adam Equipment ASTM 4 1g - 1kg Calibration Weight Set, 1g-1kg Range, ASTM Class 4","description":"\u003ch2\u003eAdam Equipment ASTM Class 4 Calibration Weight Set — Extended 1g to 1kg Range for Bench Scales\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM Class 4 calibration weight set spanning 1g to 1kg provides a wide-span reference collection for bench scales, floor scales, and general-purpose balances where Class 4 tolerances meet the application requirement. This extended set equips calibration technicians with the full range of weights needed to verify scale accuracy from a single gram through to one kilogram, making it a practical all-in-one kit for facilities managing multiple general-purpose weighing instruments.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eBroad 1g to 1kg range\u003c\/strong\u003e covers both low-end and mid-range bench scale calibration requirements in a single set\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eASTM Class 4 tolerance\u003c\/strong\u003e appropriate for reliable general-purpose bench and floor scale verification\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eStainless steel construction\u003c\/strong\u003e resists corrosion and maintains structural integrity under regular handling\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eANSI\/ASTM E617 compliant\u003c\/strong\u003e for traceable, auditable calibration records in quality programs\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCotton gloves included\u003c\/strong\u003e to prevent surface contamination from handling during calibration tasks\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eIndividual denominations across the full range\u003c\/strong\u003e enable incremental verification of scale linearity\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSingle kit covers the complete calibration span\u003c\/strong\u003e reducing the need for multiple overlapping sets\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eCompared to the 1g to 200g or 1g to 500g Class 4 sets, this 1g to 1kg kit extends coverage to the full kilogram range, enabling verification of bench scales and general-purpose balances with capacities up to and including 1kg. A single set provides a continuous range of calibration points from the lightest gram-increment through to the maximum reference weight, supporting thorough linearity checks across the instrument's complete working range. Class 4 tolerances are cost-effective for routine verification tasks in industrial, workshop, and commercial environments where analytical-grade precision is not required.\u003c\/p\u003e\n \u003cp\u003eStainless steel construction provides a stable, corrosion-resistant reference mass for each denomination that retains its physical integrity through the frequency of handling typical in active, multi-scale calibration programs. The 1kg denomination provides a practical upper calibration point for kilogram-range bench scales, while the gram-range denominations address fine linearity verification at the lower end of the instrument's capacity. The compact individual weight pieces are stored together in the included case for organized, portable transport between instruments.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eBench scale calibration across the 1g to 1kg capacity range in manufacturing and production\u003c\/li\u003e\n \u003cli\u003eMulti-scale calibration programs covering varied bench and portable scale models at a single facility\u003c\/li\u003e\n \u003cli\u003eGeneral industrial and workshop weighing equipment verification\u003c\/li\u003e\n \u003cli\u003eClassroom and vocational training laboratory balance and scale calibration\u003c\/li\u003e\n \u003cli\u003eRetail and commercial scale verification for general merchandise weighing applications\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM Class 4 1g–1kg Set?\u003c\/h3\u003e\n \u003cp\u003eThe extended 1g to 1kg range makes this set the most efficient single-kit choice for operations that must address a broad span of bench scale calibration requirements. ANSI\/ASTM E617 compliance provides traceability documentation for quality management systems, while the stainless steel weights deliver consistent reference values through many calibration cycles. Cotton gloves protect the weights from contamination during active use, extending their useful service life without compromising calibration accuracy.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765875859669,"sku":"ASTM 4 1g - 1kg Calibration Weight Set","price":1147.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_1g_-_1kg_calibration_weight_set.jpg?v=1778276827"},{"product_id":"adam-equipment-astm-4-1g-500g-calibration-weight-set","title":"Adam Equipment ASTM 4 1g - 500g Calibration Weight Set, 1g-500g Range, ASTM Class 4","description":"\u003ch2\u003eAdam Equipment ASTM Class 4 Calibration Weight Set — 1g to 500g for Mid-Range Scale Verification\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM Class 4 calibration weight set in the 1g to 500g range provides a mid-span reference kit suited to bench scales, portable balances, and compact weighing instruments operating within the 500g capacity range. Stainless steel construction and compliance with ANSI\/ASTM E617 make this a reliable, traceable calibration solution for general-purpose verification tasks in industrial, retail, and light laboratory environments.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e1g to 500g range\u003c\/strong\u003e for thorough verification of mid-capacity bench scales and portable balance models\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eASTM Class 4 tolerance\u003c\/strong\u003e appropriate for general-purpose weighing equipment calibration without over-specifying precision\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eStainless steel weights\u003c\/strong\u003e resist corrosion and physical wear through repeated handling in active calibration programs\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eANSI\/ASTM E617 compliant\u003c\/strong\u003e for documented, traceable calibration records supporting audit and quality programs\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCotton gloves included\u003c\/strong\u003e to maintain weight surface cleanliness during handling and storage\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFull range of denominations from 1g to 500g\u003c\/strong\u003e enables incremental linearity verification of the instrument\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact and portable\u003c\/strong\u003e for facility-wide calibration programs covering multiple instrument locations\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eThe 1g to 500g Class 4 set occupies a practical mid-range position in Adam Equipment's ASTM weight offering, providing broader coverage than the 1g to 200g set while remaining more manageable than the full 1g to 1kg kit. For bench and portable scales with a 500g upper capacity, this set provides calibration points across the instrument's full operating range, supporting verification of both low-end linearity and upper-capacity accuracy. Each denomination is fabricated to ASTM Class 4 tolerances, giving calibration technicians a consistent reference from the lightest gram-increment through the 500g upper reference.\u003c\/p\u003e\n \u003cp\u003eIn facility-wide calibration programs where instruments span a range of capacities, the 500g upper limit makes this set suitable for a broad group of bench and portable instruments without the additional storage and handling requirements of a 1kg set. The stainless steel construction is appropriate for routine use in workshop and laboratory environments, maintaining its dimensional integrity through the environmental conditions and handling frequency typical of scheduled calibration intervals throughout the year.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eBench scale calibration up to 500g in production, packaging, and light industrial environments\u003c\/li\u003e\n \u003cli\u003ePortable and pocket balance verification for field calibration and laboratory use\u003c\/li\u003e\n \u003cli\u003eRetail counter scale verification for lighter product and commodity categories\u003c\/li\u003e\n \u003cli\u003eLaboratory balance routine verification for instruments in the 500g capacity range\u003c\/li\u003e\n \u003cli\u003eIndustrial quality control weight checks where Class 4 tolerance is the specified standard\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM Class 4 1g–500g Set?\u003c\/h3\u003e\n \u003cp\u003eThis 1g to 500g Class 4 set provides a cost-effective, standards-compliant calibration kit for operations whose bench and portable scales fall within this capacity range. The durable stainless steel weights maintain their physical integrity through many calibration cycles, and the complete 1g to 500g denomination range supports a thorough instrument verification process. Supplied with cotton gloves, the set is ready for immediate use and designed to support reliable, repeatable calibration results over an extended service life.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765875892437,"sku":"ASTM 4 1g - 500g Calibration Weight Set","price":879.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_1g_-_500g_calibration_weight_set.jpg?v=1778276832"},{"product_id":"adam-equipment-astm-2-1g-200g-calibration-weight-set","title":"Adam Equipment ASTM 2 1g - 200g Calibration Weight Set, 1g-200g Range, ASTM Class 2","description":"\u003ch2\u003eAdam Equipment ASTM Class 2 Calibration Weight Set — Precision 1g to 200g for Laboratory Balances\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM Class 2 calibration weight set covering 1g to 200g delivers a precision reference kit for laboratory and production precision balance calibration in the sub-200g range. Produced from stainless steel at 7.9 g\/cm³ and complying with ANSI\/ASTM E617, this set provides accuracy positioned between Class 1 analytical-grade and Class 4 general-purpose specifications, making it the correct choice for precision balances used in pharmaceutical, jewelry, and research applications where milligram-level readability requires a corresponding calibration reference standard.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eASTM Class 2 precision\u003c\/strong\u003e for calibrating precision laboratory and production balances with milligram or finer readability\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact 1g to 200g coverage\u003c\/strong\u003e matched to balances operating primarily below the 200g threshold\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eStainless steel at 7.9 g\/cm³\u003c\/strong\u003e for stable, corrosion-resistant reference masses in laboratory environments\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eANSI\/ASTM E617 compliant\u003c\/strong\u003e for traceable calibration documentation supporting quality audits\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eWhite cotton gloves included\u003c\/strong\u003e to prevent surface contamination from fingerprint oils during handling\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eIndividual weight denominations\u003c\/strong\u003e from 1g to 200g for stepwise precision balance linearity verification\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact set storage\u003c\/strong\u003e for controlled-environment cabinet or safe storage between calibration intervals\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eThe 1g to 200g Class 2 set is designed for precision balances whose capacity and readability fall between the domains of high-resolution analytical instruments and general-purpose bench scales. At ASTM Class 2 tolerance, each weight piece is accurate enough to verify precision balances used in pharmaceutical preparation, jewelry manufacturing, environmental sample preparation, and research chemistry where readability is in the milligram range and calibration must be traceable to a recognized standard without necessarily requiring the very tightest Class 1 tolerances.\u003c\/p\u003e\n \u003cp\u003eThe stainless steel material at 7.9 g\/cm³ provides resistance to the mild chemical and environmental conditions encountered in precision laboratory and light production settings. The 200g maximum denominator is appropriate for smaller precision balances commonly used in quality control, recipe formulation, and specialty weighing applications. Each denomination provides a specific calibration reference point, and the complete set from 1g to 200g gives the calibration technician the data needed to verify the balance's linearity and accuracy across its working range.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePrecision balance calibration in pharmaceutical development and quality control laboratories\u003c\/li\u003e\n \u003cli\u003eJewelry, precious metal, and gemstone balance verification for trade and manufacturing\u003c\/li\u003e\n \u003cli\u003eResearch laboratory balance routine maintenance and performance verification\u003c\/li\u003e\n \u003cli\u003eEnvironmental sampling and laboratory testing balance calibration programs\u003c\/li\u003e\n \u003cli\u003eFood science, nutrition analysis, and formulation precision balance checks\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM Class 2 1g–200g Set?\u003c\/h3\u003e\n \u003cp\u003eWhere ASTM Class 4 tolerances are insufficient for the balance readability and Class 1 analytical-grade precision is not mandated by the application, this Class 2 set provides an accurately positioned calibration solution. The sub-200g range makes it a focused, compact kit for laboratories with precision balances in this capacity range, and the stainless steel construction supports long-term durability through regular calibration intervals. Cotton gloves complete the kit for immediate, contamination-free deployment.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765875925205,"sku":"ASTM 2 1g - 200g Calibration Weight Set","price":777.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_1g_-_200g_calibration_weight_set.jpg?v=1778276837"},{"product_id":"adam-equipment-astm-4-10kg-accessory","title":"Adam Equipment ASTM 4 - 10kg Calibration Weight, 10000g Capacity, ASTM Class 4, Stainless Steel","description":"\u003ch2\u003eAdam Equipment ASTM 4 Individual Calibration Weight, 10 kg Polished Stainless Steel\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 10 kg calibration weight is a polished stainless steel individual weight manufactured to ASTM Class 4 tolerances. Designed to test and calibrate precision and industrial balances at the upper end of the ASTM classification range, it provides a reliable mass reference for commercial and manufacturing weighing applications where a robust, well-protected calibration standard is required.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e10 kg nominal value for calibrating industrial platform and floor-range precision balances\u003c\/li\u003e\n \u003cli\u003eASTM Class 4 conformance meeting ANSI\/ASTM tolerance specifications for this class\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ density as required for ASTM Class 2-4 weights\u003c\/li\u003e\n \u003cli\u003ePolished stainless steel construction for corrosion resistance and long-term mass stability\u003c\/li\u003e\n \u003cli\u003eSupplied in an individual impact-resistant plastic case for protected storage and transport\u003c\/li\u003e\n \u003cli\u003eSerial number clearly recorded on case for calibration traceability\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eASTM Class 4 represents the working end of the ASTM weight classification hierarchy, providing calibration accuracy that is appropriate for industrial balances, platform scales, and commercial weighing instruments used in manufacturing, food production, and logistics applications. Its tolerances are wider than those of Classes 0-3 but are defined and traceable to ANSI\/ASTM standards, making this weight suitable for any calibration task where a Class 4 reference is specified by the instrument's calibration procedure or quality system documentation.\u003c\/p\u003e\n \u003cp\u003eThe 10 kg denomination is one of the heaviest individual weights in the Adam Equipment ASTM range, making it particularly relevant for calibrating high-capacity precision balances and platform scales where full-span verification requires a large reference mass. The polished stainless steel body resists surface oxidation and contamination that could gradually alter the effective mass of the weight over its service life, and the individual impact-resistant plastic case provides essential protection during storage and transport between calibration events. The serial number on the case facilitates formal traceability documentation for quality management systems.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibration of industrial and platform balances with capacities up to and including 10 kg\u003c\/li\u003e\n \u003cli\u003eRoutine span verification in manufacturing and food production quality control\u003c\/li\u003e\n \u003cli\u003eCommercial weighing compliance testing requiring ASTM-standard references\u003c\/li\u003e\n \u003cli\u003eCalibration record management for quality management systems requiring serialised weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 4 - 10kg?\u003c\/h3\u003e\n \u003cp\u003eThe 10 kg ASTM 4 weight from Adam Equipment provides a dependable and ANSI\/ASTM-compliant calibration reference for industrial-range balances. Its case-protected, serialised format supports formal calibration documentation requirements, and its stainless steel construction maintains mass stability through repeated use over a long service life. It is available alongside the full range of Adam Equipment ASTM individual weights, making it straightforward to assemble matched calibration references across multiple denominations.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765879988437,"sku":"ASTM 4 - 10kg","price":1113.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_-_10kg.jpg?v=1778277464"},{"product_id":"adam-equipment-astm-1-1g-accessory","title":"Adam Equipment ASTM 1 - 1g Calibration Weight, 1g Capacity, ASTM Class 1, Stainless Steel","description":"\u003ch2\u003eAdam Equipment ASTM 1 Individual Calibration Weight, 1 g High-Accuracy Stainless Steel\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 1 g calibration weight is a high-accuracy individual stainless steel weight conforming to ASTM Class 1 tolerances. Positioned near the top of the ASTM weight accuracy hierarchy, it provides the close-tolerance calibration reference required by precision and analytical balances in demanding laboratory and pharmaceutical measurement environments where tight tolerance limits are specified by the calibration protocol.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e1 g nominal value for calibrating high-resolution analytical and precision balances at small denominations\u003c\/li\u003e\n \u003cli\u003eASTM Class 1 conformance meeting the tighter ANSI\/ASTM tolerance limits of this class\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ density as specified for ASTM Class 0-1 weights, reflecting higher material standards\u003c\/li\u003e\n \u003cli\u003ePolished stainless steel surface finish minimises contamination accumulation on the weight body\u003c\/li\u003e\n \u003cli\u003eAvailable across the full ASTM class range (0-4) for complete matched calibration sets\u003c\/li\u003e\n \u003cli\u003eBacked by a 1-year warranty\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eASTM Class 1 weights sit near the top of the ASTM accuracy scale, with tolerances tighter than Classes 2, 3, and 4, making them appropriate for precision balances with readabilities from 0.1 mg to 1 mg. The 1 g denomination is one of the most frequently used small calibration references — it falls within the working range of most analytical balances and is regularly employed for span calibration, sensitivity checks, and low-end linearity verification across a wide variety of precision instruments.\u003c\/p\u003e\n \u003cp\u003eThe 7.96 g\/cm³ density specification for ASTM Class 0-1 weights reflects a higher level of material consistency compared to the 7.9 g\/cm³ specification for Classes 2-4. This tighter density specification, combined with the polished surface finish, ensures that the weight's effective mass remains stable across many calibration cycles. While the ASTM 1 individual weights at this denomination do not include an individual plastic case per the available product data, their polished construction provides inherent surface protection, and they are available as part of the broader Adam Equipment ASTM weight programme that supports full class flexibility.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eSpan and sensitivity calibration of analytical balances in research and quality laboratories\u003c\/li\u003e\n \u003cli\u003ePharmaceutical quality control and reference measurement with Class 1 requirements\u003c\/li\u003e\n \u003cli\u003eLinearity and repeatability testing of precision instruments at small denominations\u003c\/li\u003e\n \u003cli\u003eAccredited calibration services requiring ANSI\/ASTM Class 1 reference standards\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 1 - 1g?\u003c\/h3\u003e\n \u003cp\u003eThe 1 g ASTM 1 weight provides a well-defined, ANSI\/ASTM-compliant calibration reference for analytical balance users who need a higher-accuracy standard at this denomination than Class 2 provides. Its polished stainless steel construction and elevated density specification ensure mass stability over time, and its availability across the full ASTM class range supports the assembly of matched multi-denomination calibration weight collections for diverse balance fleets.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880021205,"sku":"ASTM 1 - 1g","price":106.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_-_1g.jpg?v=1778277470"},{"product_id":"adam-equipment-astm-2-100g-accessory","title":"Adam Equipment ASTM 2 - 100g Calibration Weight, 100g Capacity, ASTM Class 2, Stainless Steel","description":"\u003ch2\u003eAdam Equipment ASTM 2 Individual Calibration Weight, 100 g Precision Stainless Steel\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 100 g calibration weight is a polished stainless steel individual weight meeting ASTM Class 2 tolerance specifications. Suited to precision balance calibration across a broad range of laboratory, pharmaceutical, and industrial quality assurance applications, it delivers a reliable mid-class calibration reference at the widely used 100 g denomination.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e100 g nominal value covering the mid-range calibration span of most bench-top precision balances\u003c\/li\u003e\n \u003cli\u003eASTM Class 2 conformance, meeting the defined ANSI\/ASTM tolerance limits for this class\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ density as specified for ASTM Class 2-4 weights\u003c\/li\u003e\n \u003cli\u003ePolished stainless steel body for long-term corrosion resistance and surface cleanliness\u003c\/li\u003e\n \u003cli\u003eIndividual impact-resistant plastic case included for protected storage and transport\u003c\/li\u003e\n \u003cli\u003eSerial number recorded on case for calibration documentation and traceability\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eASTM Class 2 occupies the middle tier of the ASTM weight classification system, offering calibration accuracy appropriate for precision balances used in general laboratory work, pharmaceutical production, and industrial quality control where the highest-class tolerances of Classes 0 or 1 are not required by the calibration standard. The 100 g denomination is one of the most practical and widely specified calibration references — it falls comfortably within the working range of most bench-top precision balances and is suitable for span calibration at mid-range capacity.\u003c\/p\u003e\n \u003cp\u003eEach 100 g ASTM 2 weight is manufactured to the 7.9 g\/cm³ density specification and finished to a polished surface that minimises the risk of mass variation caused by surface contamination or oxidation building up over time. The individual impact-resistant plastic case provides essential protection during storage and transport, preventing physical damage that could compromise the weight's tolerance compliance. The serial number displayed on the case supports the formal calibration record-keeping requirements of ISO-accredited laboratories, quality management systems, and pharmaceutical GxP documentation standards.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eSpan calibration of precision and analytical balances in laboratory settings\u003c\/li\u003e\n \u003cli\u003eIndustrial quality assurance balance verification and routine performance testing\u003c\/li\u003e\n \u003cli\u003ePharmaceutical production weighing reference and release testing compliance\u003c\/li\u003e\n \u003cli\u003eFormal calibration record management in quality-managed laboratory environments\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 2 - 100g?\u003c\/h3\u003e\n \u003cp\u003eThe 100 g ASTM 2 weight provides an accurate and traceable calibration reference for precision balance users who require ANSI\/ASTM compliance without the cost premium of Class 1. Its protective plastic case, serialised identification, and polished stainless steel construction combine to make it a dependable long-term calibration tool. It is part of the complete Adam Equipment ASTM individual weight range, enabling matched sets to be assembled across multiple denominations and classes as needed.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880053973,"sku":"ASTM 2 - 100g","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_-_100g.jpg?v=1778277475"},{"product_id":"adam-equipment-astm-1-100g-accessory","title":"Adam Equipment ASTM 1 - 100g Calibration Weight, 100g Capacity, ASTM Class 1, Stainless Steel","description":"\u003ch2\u003eAdam Equipment ASTM 1 Individual Calibration Weight, 100 g High-Accuracy Stainless Steel\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 100 g calibration weight is a high-accuracy individual stainless steel weight conforming to ASTM Class 1 tolerances. At the same 100 g denomination as the ASTM 2 version, the Class 1 weight provides tighter tolerance limits and a higher-density specification, making it the preferred calibration reference for analytical balances and precision instruments where the highest available ASTM accuracy at this denomination is required.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e100 g nominal value for calibrating analytical and high-resolution precision balances\u003c\/li\u003e\n \u003cli\u003eASTM Class 1 tolerance — significantly tighter than Class 2 at the same denomination\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ density per ASTM Class 0-1 specification, reflecting tighter material requirements\u003c\/li\u003e\n \u003cli\u003ePolished stainless steel surface with a higher finish standard than Class 2-4 weights\u003c\/li\u003e\n \u003cli\u003eIndividual impact-resistant plastic case for protected handling, storage, and transport\u003c\/li\u003e\n \u003cli\u003eSerial number on case supports calibration traceability in regulated environments\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eWhile both the ASTM 1 and ASTM 2 versions of the 100 g weight share the same nominal denomination, they differ in two measurable ways: tolerance and density. The Class 1 weight is manufactured to tighter tolerance limits defined by ANSI\/ASTM standards and uses the 7.96 g\/cm³ density specification applicable to ASTM Classes 0 and 1, compared to the 7.9 g\/cm³ used for Classes 2-4. These differences reflect the more demanding manufacturing and material quality requirements at the higher accuracy class, resulting in a weight that provides greater assurance of mass accuracy for analytical measurement applications.\u003c\/p\u003e\n \u003cp\u003eThis makes the ASTM 1 100 g weight the appropriate reference for calibrating analytical balances with readabilities of 0.1 mg or finer, where even small deviations in the calibration standard can introduce measurable systematic error into balance readings and, consequently, into analytical results. The polished surface finish at Class 1 standard minimises surface irregularities that could harbour contamination and gradually alter the effective mass. The individual plastic case and serial number provide the handling protection and documentation support required by ISO 17025-accredited calibration operations and pharmaceutical GxP environments.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eAnalytical balance calibration in pharmaceutical research and quality control laboratories\u003c\/li\u003e\n \u003cli\u003eISO 17025-accredited calibration services requiring ASTM Class 1 reference weights\u003c\/li\u003e\n \u003cli\u003eHigh-resolution sensitivity and linearity testing of analytical instruments\u003c\/li\u003e\n \u003cli\u003eRegulated laboratory environments operating under GLP or GMP documentation requirements\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 1 - 100g?\u003c\/h3\u003e\n \u003cp\u003eWhen analytical work demands the tightest available calibration standard at 100 g, ASTM Class 1 is the correct specification. The Adam Equipment ASTM 1 100 g weight delivers this standard in a protected, serialised package built to the higher density and surface finish requirements of the Class 1 designation. It integrates naturally with the rest of the Adam Equipment ASTM individual weight range, supporting the assembly of complete, multi-class calibration weight collections.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880086741,"sku":"ASTM 1 - 100g","price":131.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_-_100g.jpg?v=1778277491"},{"product_id":"adam-equipment-astm-3-1000g-accessory","title":"Adam Equipment ASTM 3 - 1000g Calibration Weight, 1000g Capacity, ASTM Class 3, Stainless Steel","description":"\u003ch2\u003eAdam Equipment ASTM 3 Individual Calibration Weight, 1 kg Stainless Steel\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 1000 g (1 kg) calibration weight is an individual polished stainless steel weight meeting ASTM Class 3 tolerance requirements. At the 1 kg denomination and Class 3 accuracy, it is a practical calibration reference for precision and commercial balances used in general laboratory, industrial, and educational settings where a well-defined but cost-appropriate calibration standard is required.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e1000 g (1 kg) nominal value for calibrating precision and platform balances in the mid-to-high capacity range\u003c\/li\u003e\n \u003cli\u003eASTM Class 3 conformance meeting ANSI\/ASTM tolerance specifications for this class\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ density as specified for ASTM Class 2-4 weights\u003c\/li\u003e\n \u003cli\u003ePolished stainless steel construction for durability and resistance to corrosion over long service life\u003c\/li\u003e\n \u003cli\u003eSupplied in an individual impact-resistant plastic case for protection during storage and transit\u003c\/li\u003e\n \u003cli\u003eSerial number on case enables straightforward identification within a calibration weight collection\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eASTM Class 3 sits in the lower-accuracy portion of the ASTM hierarchy, but its tolerances are still formally defined and traceable to ANSI\/ASTM standards, making it appropriate for general commercial and precision laboratory calibration where Classes 0, 1, or 2 are not specifically required. The 1 kg denomination is one of the most commonly specified calibration references for bench-top precision balances, as it provides a full-range verification point for instruments with capacities of 1 kg or greater and a meaningful mid-range check for higher-capacity instruments.\u003c\/p\u003e\n \u003cp\u003eThe polished stainless steel body maintains its mass consistency across repeated calibration cycles by resisting the surface oxidation and corrosion that could otherwise alter the effective weight over time. The 7.9 g\/cm³ density specification ensures dimensional predictability for buoyancy correction calculations in applications that require it. The individual plastic case provides the physical protection needed during storage and transport between calibration intervals, and the serial number recorded on the case supports the documentation requirements of quality management systems without the need for additional labelling.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eSpan calibration of precision balances in general laboratory environments\u003c\/li\u003e\n \u003cli\u003eCommercial weighing device compliance testing and verification\u003c\/li\u003e\n \u003cli\u003eIndustrial quality control balance performance verification\u003c\/li\u003e\n \u003cli\u003eEducational laboratory calibration and measurement uncertainty exercises\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 - 1000g?\u003c\/h3\u003e\n \u003cp\u003eThe 1 kg ASTM 3 weight is a practical and cost-appropriate calibration reference for a broad range of balance types in general commercial and laboratory settings. Its stainless steel construction and individual protective case support a long calibration service life, and the serial number enables straightforward integration into formal calibration documentation systems. It is part of the full Adam Equipment ASTM individual weight range, available across all classes for flexible multi-denomination calibration set assembly.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880119509,"sku":"ASTM 3 - 1000g","price":233.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_1000g.jpg?v=1778277497"},{"product_id":"adam-equipment-astm-0-20g-accessory","title":"Adam Equipment ASTM 0 - 20g Calibration Weight, 20g Capacity, ASTM Class 0, Stainless Steel","description":"\u003ch2\u003eAdam Equipment ASTM 0 Individual Calibration Weight, 20 g Ultra-High Accuracy Stainless Steel\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 0 20 g calibration weight is an ultra-high accuracy individual stainless steel weight conforming to ASTM Class 0 — the most precise classification in the ANSI\/ASTM weight standard. It is designed for calibrating the most demanding analytical balances and for use as a working standard in metrology, primary calibration services, and reference-grade laboratory measurement applications where no compromise on mass accuracy is acceptable.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e20 g nominal value for high-precision calibration of analytical and micro-balance instruments\u003c\/li\u003e\n \u003cli\u003eASTM Class 0 — the highest accuracy classification in the ANSI\/ASTM weight standard\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ density per the Class 0-1 specification, reflecting the most stringent material requirements\u003c\/li\u003e\n \u003cli\u003ePolished stainless steel with the highest surface finish specification in the ASTM weight range\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant plastic case to protect the weight from physical damage\u003c\/li\u003e\n \u003cli\u003eSerial number clearly recorded on case for full calibration traceability documentation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eASTM Class 0 represents the apex of the ASTM weight hierarchy. Its tolerance limits are substantially tighter than those of Class 1 and several times tighter than Classes 2-4, reflecting the manufacturing precision and material quality required to achieve this level of mass accuracy. The 20 g denomination is a practically important reference at this class level — it spans the useful calibration range of many high-resolution analytical balances and provides a defined reference point for sensitivity and linearity verification of instruments operating at 0.01 mg resolution or better.\u003c\/p\u003e\n \u003cp\u003eThe 7.96 g\/cm³ density specification and polished surface finish at Class 0 standard represent the tightest combination of material consistency and surface quality in the ASTM range. Any surface damage, contamination, or oxidation on a Class 0 weight would more readily produce a measurable mass deviation because the tolerance budget is so small. This makes the impact-resistant plastic case an essential component of the delivery — physical protection is not optional at this accuracy level. The serial number recorded on the case enables the full traceability documentation demanded by ISO 17025 accreditation, pharmaceutical primary reference standards programmes, and national metrology institute working standards management.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibration of reference-grade and analytical balances in national and accredited metrology laboratories\u003c\/li\u003e\n \u003cli\u003eISO 17025-accredited calibration services operating at the highest ASTM accuracy tier\u003c\/li\u003e\n \u003cli\u003ePharmaceutical primary reference standard weighing programmes requiring Class 0 mass references\u003c\/li\u003e\n \u003cli\u003eResearch applications where measurement uncertainty at the calibration level must be reduced to the minimum achievable\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 0 - 20g?\u003c\/h3\u003e\n \u003cp\u003eWhen the measurement application requires the smallest achievable calibration uncertainty, ASTM Class 0 is the only appropriate standard. The Adam Equipment 20 g ASTM 0 weight delivers this level of accuracy in a carefully protected, serialised package that supports the most demanding traceability and compliance requirements in analytical and metrological practice. It is the correct specification for laboratories where calibration quality directly determines the validity of measurement results at the highest performance levels.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880152277,"sku":"ASTM 0 - 20g","price":225.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_0_-_20g.jpg?v=1778277503"},{"product_id":"adam-equipment-astm-2-10g-accessory","title":"Adam Equipment ASTM 2 - 10g Calibration Weight, 10g Capacity, ASTM Class 2, Stainless Steel","description":"\u003ch2\u003eAdam Equipment ASTM 2 Individual Calibration Weight, 10 g Precision Stainless Steel\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 10 g calibration weight is a polished stainless steel individual weight meeting ASTM Class 2 tolerance specifications. At 10 g, it provides a practical and commonly referenced small-denomination calibration standard for precision balances used in quality control, laboratory analysis, and light industrial measurement, where Class 2 accuracy meets the requirements of the calibration protocol.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e10 g nominal value for calibrating precision and semi-analytical balances at small-denomination reference points\u003c\/li\u003e\n \u003cli\u003eASTM Class 2 conformance meeting ANSI\/ASTM defined tolerance limits for this class\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ density as specified for the ASTM Class 2-4 weight range\u003c\/li\u003e\n \u003cli\u003ePolished stainless steel construction for long-term corrosion resistance and mass stability\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant plastic case to protect the weight from surface damage\u003c\/li\u003e\n \u003cli\u003eSerial number recorded on case for calibration traceability in quality management systems\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eThe 10 g denomination is a frequently used calibration reference because it falls within the practical working range of most precision balances and provides a useful mid-scale linearity check point for instruments with capacities of 100 g to 500 g or higher. At ASTM Class 2 accuracy, the tolerance limits are appropriate for precision balances operating at readabilities from 1 mg to 10 mg in laboratory, pharmaceutical, and industrial quality control environments, where the highest ASTM classes are not mandated by the application's measurement standard or quality system requirements.\u003c\/p\u003e\n \u003cp\u003eThe polished stainless steel body and 7.9 g\/cm³ density ensure that the weight maintains its nominal mass across repeated calibration events without significant drift caused by surface corrosion or contamination. The individual plastic case is particularly important for a small denomination like 10 g, where even a minor surface scratch or embedded particle could represent a measurable fraction of the weight's mass and potentially push it out of tolerance. The serial number supports the formal identification and documentation requirements of quality-managed calibration programmes.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePrecision balance linearity and sensitivity verification in laboratory settings\u003c\/li\u003e\n \u003cli\u003eIndustrial and manufacturing quality control span and repeatability checks\u003c\/li\u003e\n \u003cli\u003ePharmaceutical production weighing calibration and performance verification\u003c\/li\u003e\n \u003cli\u003eGeneral laboratory calibration and routine balance maintenance programmes\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 2 - 10g?\u003c\/h3\u003e\n \u003cp\u003eThe 10 g ASTM 2 weight is a versatile, ANSI\/ASTM-compliant calibration reference for a wide range of precision balance applications where Class 2 accuracy is appropriate. Its protective case, serialised identification, and polished stainless steel body make it a reliable long-term member of any calibration weight collection, available alongside the full Adam Equipment ASTM range across all classes and denominations.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880185045,"sku":"ASTM 2 - 10g","price":110.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_-_10g.jpg?v=1778277518"},{"product_id":"adam-equipment-astm-2-1g-accessory","title":"Adam Equipment ASTM 2 - 1g Calibration Weight, 1g Capacity, ASTM Class 2, Stainless Steel","description":"\u003ch2\u003eAdam Equipment ASTM 2 Individual Calibration Weight, 1 g Stainless Steel Precision Reference\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 1 g calibration weight is a polished stainless steel individual weight conforming to ASTM Class 2 tolerances. At the 1 g denomination and Class 2 accuracy, it provides a small-denomination calibration reference for precision balances requiring a defined ANSI\/ASTM-compliant mass standard for low-end linearity checks, span calibration, and general balance verification routines.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e1 g nominal value for small-range precision balance calibration and low-end linearity verification\u003c\/li\u003e\n \u003cli\u003eASTM Class 2 conformance meeting the ANSI\/ASTM tolerance requirements for this class\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ density as specified for ASTM Class 2-4 weights\u003c\/li\u003e\n \u003cli\u003ePolished stainless steel body for corrosion resistance and stable mass over repeated calibration use\u003c\/li\u003e\n \u003cli\u003eIndividual impact-resistant plastic case for protected handling and long-term storage\u003c\/li\u003e\n \u003cli\u003eSerial number recorded on case to support calibration traceability requirements\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eThe 1 g ASTM 2 weight serves the portion of the calibration weight market that requires a small, formally specified mass reference at Class 2 accuracy — appropriate for precision balances with readabilities in the 0.01 g to 0.001 g range used in general laboratory, pharmaceutical, and quality control environments. Where the ASTM 1 version of the same denomination is specified for analytical balances requiring the tighter Class 1 tolerance, the ASTM 2 weight is the correct choice when the calibration protocol calls for Class 2 accuracy or when the balance type does not demand the higher class.\u003c\/p\u003e\n \u003cp\u003eAt 1 g, the weight itself is small and lightweight, which makes the protective plastic case especially important — any surface chip, mark, or foreign material adherence on a 1 g weight represents a proportionally larger fraction of its total mass than on heavier weights, so physical protection during storage and transport directly supports tolerance compliance over the weight's service life. The polished stainless steel construction reduces the tendency for contamination to adhere and helps the weight maintain its nominal mass through regular handling. The serial number provides the identification link needed for formal calibration records and quality system audit trails.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eLow-range span calibration and sensitivity verification of precision and semi-analytical balances\u003c\/li\u003e\n \u003cli\u003eSmall-denomination linearity checks across the lower portion of a balance's capacity range\u003c\/li\u003e\n \u003cli\u003ePharmaceutical and food production quality control calibration programmes at Class 2 requirements\u003c\/li\u003e\n \u003cli\u003eGeneral laboratory balance maintenance and routine calibration interval verification\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 2 - 1g?\u003c\/h3\u003e\n \u003cp\u003eThe 1 g ASTM 2 weight occupies an important niche for precision balance users who need a formally specified small calibration reference without the cost of Class 1. Its protective case safeguards the weight at a denomination where surface integrity is particularly critical, and its stainless steel construction ensures long-term mass stability. As part of the comprehensive Adam Equipment ASTM individual weight programme, it integrates easily into multi-denomination calibration sets that span the full range of balance capacities in a facility.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880217813,"sku":"ASTM 2 - 1g","price":93.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_-_1g.jpg?v=1778277525"},{"product_id":"adam-equipment-astm-2-50g-accessory","title":"Adam Equipment ASTM 2 - 50g Calibration Weight, 50g Capacity, ASTM Class 2, Stainless Steel","description":"\u003ch2\u003ePrecision ASTM Class 2 Calibration Weight — ASTM 2 - 50g (50 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 50g is an individual 50 g calibration weight conforming to ANSI\/ASTM Class 2 tolerances, designed for precision balance calibration and routine quality-control verification. Positioned in the mid-accuracy range of the ASTM E617 classification system, Class 2 weights balance measurement accuracy with broad laboratory applicability, making them a practical choice for formulation, QA testing, and applied analytical work. The polished stainless steel construction provides long-term corrosion resistance and reliable dimensional stability across regular use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body produced to ANSI\/ASTM Class 2 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density meeting ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight; serial number recorded on the supplied protective case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for safe storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 2 requirements for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable across Classes 0–4 and multiple nominal values to suit a range of calibration needs\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish supports easy cleaning and visual contamination inspection\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 2 dimensional and tolerance specifications, this 50 g stainless steel weight provides consistent, repeatable mass values appropriate for precision balances typically operating at readabilities of 0.01 g or finer. The 7.9 g\/cm³ density meets the material specification for ASTM Classes 2 through 4 and, combined with the polished surface finish, reduces particulate accumulation during normal laboratory handling. Class 2 is a widely specified tolerance class for mid-level precision work, including formulation, compounding, and routine quality assurance balance verification.\u003c\/p\u003e\n \u003cp\u003eEvery weight in Adam Equipment's ASTM series ships in its own hard plastic case, with the unique serial number printed or engraved on the case exterior. This approach allows laboratories to quickly match a weight to its calibration documentation without relying solely on the weight itself, which is practical in environments where multiple weights of similar nominal values may be in use simultaneously. The case provides physical protection against impact damage and contamination between calibration events, helping to extend the weight's functional service life.\u003c\/p\u003e\n \u003cp\u003eWithin Adam Equipment's ASTM calibration weight family, which spans Classes 0 through 4 and a broad range of nominal values, the Class 2 range occupies the position between the tighter-tolerance Class 0 and 1 weights and the more general-purpose Class 3 and 4 offerings. This makes the 50 g Class 2 weight a sound choice for laboratories whose balances and measurement requirements sit in the middle of the ASTM accuracy spectrum. Routine cleaning with lint-free cloths and storage in the supplied case will maintain the weight's surface and mass stability between calibration intervals.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating precision balances in pharmaceutical, chemical, and food science quality laboratories\u003c\/li\u003e\n \u003cli\u003eFormulation and compounding verification in manufacturing environments\u003c\/li\u003e\n \u003cli\u003eBalance performance checks during routine equipment qualification activities\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols at 50 g on precision analytical balances\u003c\/li\u003e\n \u003cli\u003eEducational and research institutions specifying ANSI\/ASTM Class 2 calibration standards\u003c\/li\u003e\n \u003cli\u003eGeneral laboratory balance verification where Class 2 tolerances are required by procedure\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 2 - 50g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 50g gives precision laboratories a cost-effective route to ANSI\/ASTM Class 2 compliance backed by polished stainless steel construction, individual serialisation, and a protective hard case. The 7.9 g\/cm³ steel density and smooth finish maintain accuracy and cleanliness across regular use, while the case-mounted serial number simplifies traceability record-keeping under ISO, GLP, and other quality systems. For laboratories that require reliable Class 2 mass standards at 50 g without the tighter specifications — and associated cost — of Class 0 or 1 weights, this unit offers a well-matched, practical solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880250581,"sku":"ASTM 2 - 50g","price":114.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_-_50g.jpg?v=1778277531"},{"product_id":"adam-equipment-astm-3-10g-accessory","title":"Adam Equipment ASTM 3 - 10g Calibration Weight, 10g Capacity, ASTM Class 3, Stainless Steel","description":"\u003ch2\u003eGeneral-Purpose ASTM Class 3 Calibration Weight — ASTM 3 - 10g (10 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 - 10g is an individual 10 g calibration weight manufactured to ANSI\/ASTM Class 3 tolerances, providing a general-purpose mass standard for routine balance and scale verification. Class 3 sits in the mid-to-lower range of the ASTM E617 hierarchy and is appropriate for precision balances used in production, quality assurance, and applied laboratory settings where reliable performance in day-to-day operation is the primary requirement. The polished stainless steel body and individual protective case make this weight practical for high-frequency calibration use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction conforming to ANSI\/ASTM Class 3 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density in accordance with ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly noted on the supplied case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for protection during storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 3 requirements for general-purpose balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Classes 0–4 and across multiple nominal values for broad application coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface finish facilitates routine inspection and cleaning between calibration events\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 3 specifications with a 7.9 g\/cm³ stainless steel construction, this 10 g weight is designed for regular, practical calibration use in production and quality environments. Class 3 tolerances are appropriate for precision balances that do not require the tighter specifications of Class 0 or 1, yet still demand a documented, traceable mass standard for their calibration records. The smooth surface finish is easy to clean and inspect, reducing the risk of measurement errors from surface contamination during high-frequency calibration cycles.\u003c\/p\u003e\n \u003cp\u003eEach Adam Equipment ASTM 3 weight comes with an individually labelled impact-resistant plastic case, with the unique serial number clearly recorded on the case exterior. This enables quick, reliable identification during calibration activities and supports the traceability documentation required by quality systems such as ISO 9001, GMP, and internal calibration SOPs. The hard case protects the weight from knocks and ambient contamination during storage between calibration intervals, maintaining its surface and mass stability across an extended operational period.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight range spans Classes 0 through 4 across a wide selection of nominal values, so the 10 g Class 3 weight fits naturally into calibration programmes that also require heavier or lighter mass references within the same class. Handling with clean forceps and storing in the supplied case between uses will preserve the weight's nominal mass and surface condition over time. The durable stainless steel construction ensures it retains its integrity through repeated use in high-frequency calibration environments.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine verification of precision balances in production and manufacturing facilities\u003c\/li\u003e\n \u003cli\u003eOngoing QC checks in food processing, chemical blending, and packaging environments\u003c\/li\u003e\n \u003cli\u003eBalance calibration for applied laboratory work where Class 3 tolerances are procedurally specified\u003c\/li\u003e\n \u003cli\u003eField calibration kits requiring a portable, durable mass standard at 10 g\u003c\/li\u003e\n \u003cli\u003eProduction line balance checks in regulated industries requiring traceable mass standards\u003c\/li\u003e\n \u003cli\u003eTechnical training and vocational programmes requiring ANSI\/ASTM certified calibration weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 - 10g?\u003c\/h3\u003e\n \u003cp\u003eFor operations requiring regular, documented balance verification without the overhead of tighter-class weights, the Adam Equipment ASTM 3 - 10g delivers a practical ANSI\/ASTM Class 3 solution. Its polished stainless steel body withstands frequent handling in production and laboratory environments, the protective case maintains the weight in service condition between calibration intervals, and the individual serial number keeps traceability records straightforward. This combination of compliance, durability, and practicality makes the ASTM 3 - 10g a reliable choice for any facility running systematic Class 3 balance verification at the 10 g level.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880283349,"sku":"ASTM 3 - 10g","price":97.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_10g.jpg?v=1778277538"},{"product_id":"adam-equipment-astm-1-5g-accessory","title":"Adam Equipment ASTM 1 - 5g Calibration Weight, 5g Capacity, ASTM Class 1, Stainless Steel","description":"\u003ch2\u003eHigh-Accuracy ASTM Class 1 Calibration Weight — ASTM 1 - 5g (5 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 5g is an individual 5 g calibration weight built to ANSI\/ASTM Class 1 specifications, providing high-accuracy mass verification for precision laboratory balances. Class 1 represents the second-highest classification in the ASTM E617 hierarchy, making this weight well suited to balances used in pharmaceutical quality control, chemical research, and other applications where certified mass traceability is essential. Manufactured from polished stainless steel at a density of 7.96 g\/cm³, it delivers consistent, repeatable performance in any controlled laboratory setting.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body manufactured to ANSI\/ASTM Class 1 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ steel density reduces air-buoyancy uncertainty in precision balance measurements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised for straightforward traceability in ISO, GLP, and GMP documentation\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case with serial number recorded on the exterior\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 1 requirements, suitable for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Class 0 through Class 4 and multiple nominal values for complete lab coverage\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish enables easy visual inspection and contamination removal\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eConforming to ANSI\/ASTM E617 Class 1 tolerances, this 5 g calibration weight offers high accuracy appropriate for precision balances operating at readabilities from 0.001 g downward. The 7.96 g\/cm³ steel density — the higher-density specification that Class 1 shares with Class 0 — is selected to minimise the measurement error introduced by air-buoyancy differences between the weight and the material being weighed on sensitive balances. This makes the weight suitable not only for routine calibration but also for use where measurement uncertainty documentation is required.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment provides each weight with an individually labelled impact-resistant plastic case, the serial number clearly inscribed on the case exterior to support traceability documentation without additional labelling. Laboratories operating under ISO 17025, GLP, or GMP frameworks can incorporate this weight directly into their calibration records, noting the unique identifier alongside the balance under test. The hard case provides adequate physical protection for the weight during bench handling, storage in a calibration kit, and routine transport within a facility.\u003c\/p\u003e\n \u003cp\u003eAs part of Adam Equipment's broader ASTM weight range — which spans Classes 0 through 4 and a wide selection of nominal values — this 5 g Class 1 weight can serve as both a stand-alone calibration reference and a component within a multi-point calibration protocol. The polished stainless steel construction resists corrosion from typical laboratory atmospheres and cleans readily with standard weight-cleaning procedures. Handling with clean forceps or lint-free gloves will help maintain the weight's surface condition and preserve its nominal mass value over extended service periods.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine calibration of analytical and precision balances in research and quality laboratories\u003c\/li\u003e\n \u003cli\u003ePharmaceutical QC balance verification where ANSI\/ASTM Class 1 certification is specified\u003c\/li\u003e\n \u003cli\u003eCalibration checks during equipment qualification (IQ\/OQ\/PQ) for regulated environments\u003c\/li\u003e\n \u003cli\u003eReference weight in inter-laboratory comparisons and round-robin testing programmes\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols requiring a high-accuracy mass standard at 5 g\u003c\/li\u003e\n \u003cli\u003eVerification of laboratory balances during regulatory inspections and customer audits\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 1 - 5g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 5g brings together the precision-matched 7.96 g\/cm³ density, individually serialised traceability, and protective hard case that precision laboratories require from a Class 1 calibration weight. Its polished stainless steel body resists the corrosion and mechanical wear that accompany frequent calibration cycles, ensuring that the weight continues to perform within ANSI\/ASTM Class 1 tolerances throughout its service life. For balance calibration programmes where accuracy and documentation integrity are both priorities, this weight provides a dependable and compliant solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880316117,"sku":"ASTM 1 - 5g","price":114.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_-_5g.jpg?v=1778277553"},{"product_id":"adam-equipment-astm-0-50g-accessory","title":"Adam Equipment ASTM 0 - 50g Calibration Weight, 50g Capacity, ASTM Class 0, Stainless Steel","description":"\u003ch2\u003eReference-Level ASTM Class 0 Calibration Weight — ASTM 0 - 50g (50 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 0 - 50g is an individual 50 g calibration weight conforming to ANSI\/ASTM Class 0 tolerances — the highest accuracy classification in the ASTM weight hierarchy. Designed to verify analytical balances as well as high-resolution precision instruments, it provides a traceable mass standard suitable for the most demanding laboratory calibration requirements. Its polished stainless steel body and protective hard case make it a durable, reliable reference for both routine and audit-level calibration tasks.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction engineered to ANSI\/ASTM Class 0 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ steel density minimises air-buoyancy correction errors on high-resolution balances\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly recorded on the included case\u003c\/li\u003e\n \u003cli\u003eImpact-resistant hard plastic case protects the weight during storage and transport\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM Classes 0–4 and multiple weight values to meet varied calibration needs\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 requirements for Class 0 calibration weights\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish simplifies inspection for contamination or handling marks\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eThe ASTM Class 0 designation represents the tightest set of tolerance limits defined by ANSI\/ASTM E617 for laboratory calibration weights. At 50 g, this weight is precision-machined and polished to meet those exacting specifications, making it appropriate for use with analytical balances that operate at sub-milligram readability, as well as precision balances serving reference or inter-laboratory roles. The 7.96 g\/cm³ steel density — shared with Class 1 — is chosen specifically to reduce the impact of air-buoyancy variation on measured mass values, a critical consideration in any high-precision measurement environment.\u003c\/p\u003e\n \u003cp\u003eEach weight is individually serialised, with the serial number legibly recorded on the exterior of the supplied impact-resistant plastic case. This makes it straightforward to maintain traceability records for ISO 17025, GLP, GMP, and other compliance frameworks that require documented calibration chains. The hard case prevents physical damage from knocks or drops during storage and bench-to-bench transfer, helping to preserve the dimensional integrity of the weight's critical surfaces over its service life.\u003c\/p\u003e\n \u003cp\u003eProper handling of Class 0 weights requires the use of clean forceps or lint-free gloves, as direct hand contact can deposit oils and particles that affect measured mass. The mirror-polished finish of this weight makes contamination easy to detect visually and straightforward to remove with appropriate cleaning procedures. Adam Equipment manufactures this weight series across Classes 0 through 4 and across a range of nominal values, allowing laboratories to select the appropriate class and size for each balance or application in their facility.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating and verifying analytical balances in pharmaceutical research and quality laboratories\u003c\/li\u003e\n \u003cli\u003eReference mass standards for metrology labs and calibration service providers\u003c\/li\u003e\n \u003cli\u003eBalance verification during regulatory inspections and third-party audits\u003c\/li\u003e\n \u003cli\u003eInter-laboratory mass comparisons where tightest tolerances are required\u003c\/li\u003e\n \u003cli\u003eCalibration of precision instruments used in chemical, forensic, and materials testing\u003c\/li\u003e\n \u003cli\u003eAccreditation-support documentation requiring ANSI\/ASTM Class 0 traceable weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 0 - 50g?\u003c\/h3\u003e\n \u003cp\u003eFor laboratories where measurement uncertainty must be held to the absolute minimum, the Adam Equipment ASTM 0 - 50g provides the ANSI\/ASTM Class 0 tolerances, traceable serialisation, and robust protective case that rigorous calibration programmes demand. The polished stainless steel body resists corrosion and maintains dimensional stability through thousands of handling cycles, while the 7.96 g\/cm³ density specification ensures that air-buoyancy effects remain within acceptable limits. Whether supporting routine analytical balance verification or serving as a reference standard in an accredited metrology laboratory, this weight delivers the precision and reliability expected of the ASTM Class 0 designation.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880348885,"sku":"ASTM 0 - 50g","price":233.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_0_-_50g.jpg?v=1778277559"},{"product_id":"adam-equipment-astm-0-100g-accessory","title":"Adam Equipment ASTM 0 - 100g Calibration Weight, 100g Capacity, ASTM Class 0, Stainless Steel","description":"\u003ch2\u003eReference-Level ASTM Class 0 Calibration Weight — ASTM 0 - 100g (100 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 0 - 100g is an individual 100 g calibration weight conforming to ANSI\/ASTM Class 0 tolerances — the highest accuracy classification in the ASTM weight hierarchy. Designed to verify analytical balances as well as high-resolution precision instruments, it provides a traceable mass standard suitable for the most demanding laboratory calibration requirements. Its polished stainless steel body and protective hard case make it a durable, reliable reference for both routine and audit-level calibration tasks.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction engineered to ANSI\/ASTM Class 0 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ steel density minimises air-buoyancy correction errors on high-resolution balances\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly recorded on the included case\u003c\/li\u003e\n \u003cli\u003eImpact-resistant hard plastic case protects the weight during storage and transport\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM Classes 0–4 and multiple weight values to meet varied calibration needs\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 requirements for Class 0 calibration weights\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish simplifies inspection for contamination or handling marks\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eThe ASTM Class 0 designation represents the tightest set of tolerance limits defined by ANSI\/ASTM E617 for laboratory calibration weights. At 100 g, this weight is precision-machined and polished to meet those exacting specifications, making it appropriate for use with analytical balances that operate at sub-milligram readability, as well as precision balances serving reference or inter-laboratory roles. The 7.96 g\/cm³ steel density — shared with Class 1 — is chosen specifically to reduce the impact of air-buoyancy variation on measured mass values, a critical consideration in any high-precision measurement environment.\u003c\/p\u003e\n \u003cp\u003eEach weight is individually serialised, with the serial number legibly recorded on the exterior of the supplied impact-resistant plastic case. This makes it straightforward to maintain traceability records for ISO 17025, GLP, GMP, and other compliance frameworks that require documented calibration chains. The hard case prevents physical damage from knocks or drops during storage and bench-to-bench transfer, helping to preserve the dimensional integrity of the weight's critical surfaces over its service life.\u003c\/p\u003e\n \u003cp\u003eProper handling of Class 0 weights requires the use of clean forceps or lint-free gloves, as direct hand contact can deposit oils and particles that affect measured mass. The mirror-polished finish of this weight makes contamination easy to detect visually and straightforward to remove with appropriate cleaning procedures. Adam Equipment manufactures this weight series across Classes 0 through 4 and across a range of nominal values, allowing laboratories to select the appropriate class and size for each balance or application in their facility.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating and verifying analytical balances in pharmaceutical research and quality laboratories\u003c\/li\u003e\n \u003cli\u003eReference mass standards for metrology labs and calibration service providers\u003c\/li\u003e\n \u003cli\u003eBalance verification during regulatory inspections and third-party audits\u003c\/li\u003e\n \u003cli\u003eInter-laboratory mass comparisons where tightest tolerances are required\u003c\/li\u003e\n \u003cli\u003eCalibration of precision instruments used in chemical, forensic, and materials testing\u003c\/li\u003e\n \u003cli\u003eAccreditation-support documentation requiring ANSI\/ASTM Class 0 traceable weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 0 - 100g?\u003c\/h3\u003e\n \u003cp\u003eFor laboratories where measurement uncertainty must be held to the absolute minimum, the Adam Equipment ASTM 0 - 100g provides the ANSI\/ASTM Class 0 tolerances, traceable serialisation, and robust protective case that rigorous calibration programmes demand. The polished stainless steel body resists corrosion and maintains dimensional stability through thousands of handling cycles, while the 7.96 g\/cm³ density specification ensures that air-buoyancy effects remain within acceptable limits. Whether supporting routine analytical balance verification or serving as a reference standard in an accredited metrology laboratory, this weight delivers the precision and reliability expected of the ASTM Class 0 designation.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880381653,"sku":"ASTM 0 - 100g","price":276.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_0_-_100g.jpg?v=1778277565"},{"product_id":"adam-equipment-astm-3-5g-accessory","title":"Adam Equipment ASTM 3 - 5g Calibration Weight, 5g Capacity, ASTM Class 3, Stainless Steel","description":"\u003ch2\u003eGeneral-Purpose ASTM Class 3 Calibration Weight — ASTM 3 - 5g (5 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 - 5g is an individual 5 g calibration weight manufactured to ANSI\/ASTM Class 3 tolerances, providing a general-purpose mass standard for routine balance and scale verification. Class 3 sits in the mid-to-lower range of the ASTM E617 hierarchy and is appropriate for precision balances used in production, quality assurance, and applied laboratory settings where reliable performance in day-to-day operation is the primary requirement. The polished stainless steel body and individual protective case make this weight practical for high-frequency calibration use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction conforming to ANSI\/ASTM Class 3 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density in accordance with ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly noted on the supplied case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for protection during storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 3 requirements for general-purpose balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Classes 0–4 and across multiple nominal values for broad application coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface finish facilitates routine inspection and cleaning between calibration events\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 3 specifications with a 7.9 g\/cm³ stainless steel construction, this 5 g weight is designed for regular, practical calibration use in production and quality environments. Class 3 tolerances are appropriate for precision balances that do not require the tighter specifications of Class 0 or 1, yet still demand a documented, traceable mass standard for their calibration records. The smooth surface finish is easy to clean and inspect, reducing the risk of measurement errors from surface contamination during high-frequency calibration cycles.\u003c\/p\u003e\n \u003cp\u003eEach Adam Equipment ASTM 3 weight comes with an individually labelled impact-resistant plastic case, with the unique serial number clearly recorded on the case exterior. This enables quick, reliable identification during calibration activities and supports the traceability documentation required by quality systems such as ISO 9001, GMP, and internal calibration SOPs. The hard case protects the weight from knocks and ambient contamination during storage between calibration intervals, maintaining its surface and mass stability across an extended operational period.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight range spans Classes 0 through 4 across a wide selection of nominal values, so the 5 g Class 3 weight fits naturally into calibration programmes that also require heavier or lighter mass references within the same class. Handling with clean forceps and storing in the supplied case between uses will preserve the weight's nominal mass and surface condition over time. The durable stainless steel construction ensures it retains its integrity through repeated use in high-frequency calibration environments.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine verification of precision balances in production and manufacturing facilities\u003c\/li\u003e\n \u003cli\u003eOngoing QC checks in food processing, chemical blending, and packaging environments\u003c\/li\u003e\n \u003cli\u003eBalance calibration for applied laboratory work where Class 3 tolerances are procedurally specified\u003c\/li\u003e\n \u003cli\u003eField calibration kits requiring a portable, durable mass standard at 5 g\u003c\/li\u003e\n \u003cli\u003eProduction line balance checks in regulated industries requiring traceable mass standards\u003c\/li\u003e\n \u003cli\u003eTechnical training and vocational programmes requiring ANSI\/ASTM certified calibration weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 - 5g?\u003c\/h3\u003e\n \u003cp\u003eFor operations requiring regular, documented balance verification without the overhead of tighter-class weights, the Adam Equipment ASTM 3 - 5g delivers a practical ANSI\/ASTM Class 3 solution. Its polished stainless steel body withstands frequent handling in production and laboratory environments, the protective case maintains the weight in service condition between calibration intervals, and the individual serial number keeps traceability records straightforward. This combination of compliance, durability, and practicality makes the ASTM 3 - 5g a reliable choice for any facility running systematic Class 3 balance verification at the 5 g level.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880414421,"sku":"ASTM 3 - 5g","price":93.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_5g.jpg?v=1778277580"},{"product_id":"adam-equipment-astm-1-2000g-accessory","title":"Adam Equipment ASTM 1 - 2000g Calibration Weight, 2000g Capacity, lb \/ kg Readability, ASTM Class 1, Stainless Steel","description":"\u003ch2\u003eHigh-Accuracy ASTM Class 1 Calibration Weight — ASTM 1 - 2000g (2 kg)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 2000g is an individual 2 kg calibration weight built to ANSI\/ASTM Class 1 specifications, providing high-accuracy mass verification for precision laboratory balances. Class 1 represents the second-highest classification in the ASTM E617 hierarchy, making this weight well suited to balances used in pharmaceutical quality control, chemical research, and other applications where certified mass traceability is essential. Manufactured from polished stainless steel at a density of 7.96 g\/cm³, it delivers consistent, repeatable performance in any controlled laboratory setting.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body manufactured to ANSI\/ASTM Class 1 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ steel density reduces air-buoyancy uncertainty in precision balance measurements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised for straightforward traceability in ISO, GLP, and GMP documentation\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case with serial number recorded on the exterior\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 1 requirements, suitable for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Class 0 through Class 4 and multiple nominal values for complete lab coverage\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish enables easy visual inspection and contamination removal\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eConforming to ANSI\/ASTM E617 Class 1 tolerances, this 2 kg calibration weight offers high accuracy appropriate for precision balances operating at readabilities from 0.001 g downward. The 7.96 g\/cm³ steel density — the higher-density specification that Class 1 shares with Class 0 — is selected to minimise the measurement error introduced by air-buoyancy differences between the weight and the material being weighed on sensitive balances. This makes the weight suitable not only for routine calibration but also for use where measurement uncertainty documentation is required.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment provides each weight with an individually labelled impact-resistant plastic case, the serial number clearly inscribed on the case exterior to support traceability documentation without additional labelling. Laboratories operating under ISO 17025, GLP, or GMP frameworks can incorporate this weight directly into their calibration records, noting the unique identifier alongside the balance under test. The hard case provides adequate physical protection for the weight during bench handling, storage in a calibration kit, and routine transport within a facility.\u003c\/p\u003e\n \u003cp\u003eAs part of Adam Equipment's broader ASTM weight range — which spans Classes 0 through 4 and a wide selection of nominal values — this 2 kg Class 1 weight can serve as both a stand-alone calibration reference and a component within a multi-point calibration protocol. The polished stainless steel construction resists corrosion from typical laboratory atmospheres and cleans readily with standard weight-cleaning procedures. Handling with clean forceps or lint-free gloves will help maintain the weight's surface condition and preserve its nominal mass value over extended service periods.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine calibration of analytical and precision balances in research and quality laboratories\u003c\/li\u003e\n \u003cli\u003ePharmaceutical QC balance verification where ANSI\/ASTM Class 1 certification is specified\u003c\/li\u003e\n \u003cli\u003eCalibration checks during equipment qualification (IQ\/OQ\/PQ) for regulated environments\u003c\/li\u003e\n \u003cli\u003eReference weight in inter-laboratory comparisons and round-robin testing programmes\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols requiring a high-accuracy mass standard at 2 kg\u003c\/li\u003e\n \u003cli\u003eVerification of laboratory balances during regulatory inspections and customer audits\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 1 - 2000g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 2000g brings together the precision-matched 7.96 g\/cm³ density, individually serialised traceability, and protective hard case that precision laboratories require from a Class 1 calibration weight. Its polished stainless steel body resists the corrosion and mechanical wear that accompany frequent calibration cycles, ensuring that the weight continues to perform within ANSI\/ASTM Class 1 tolerances throughout its service life. For balance calibration programmes where accuracy and documentation integrity are both priorities, this weight provides a dependable and compliant solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880447189,"sku":"ASTM 1 - 2000g","price":450.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_-_2000g.jpg?v=1778277586"},{"product_id":"adam-equipment-astm-1-200g-accessory","title":"Adam Equipment ASTM 1 - 200g Calibration Weight, 200g Capacity, ASTM Class 1, Stainless Steel","description":"\u003ch2\u003eHigh-Accuracy ASTM Class 1 Calibration Weight — ASTM 1 - 200g (200 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 200g is an individual 200 g calibration weight built to ANSI\/ASTM Class 1 specifications, providing high-accuracy mass verification for precision laboratory balances. Class 1 represents the second-highest classification in the ASTM E617 hierarchy, making this weight well suited to balances used in pharmaceutical quality control, chemical research, and other applications where certified mass traceability is essential. Manufactured from polished stainless steel at a density of 7.96 g\/cm³, it delivers consistent, repeatable performance in any controlled laboratory setting.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body manufactured to ANSI\/ASTM Class 1 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ steel density reduces air-buoyancy uncertainty in precision balance measurements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised for straightforward traceability in ISO, GLP, and GMP documentation\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case with serial number recorded on the exterior\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 1 requirements, suitable for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Class 0 through Class 4 and multiple nominal values for complete lab coverage\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish enables easy visual inspection and contamination removal\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eConforming to ANSI\/ASTM E617 Class 1 tolerances, this 200 g calibration weight offers high accuracy appropriate for precision balances operating at readabilities from 0.001 g downward. The 7.96 g\/cm³ steel density — the higher-density specification that Class 1 shares with Class 0 — is selected to minimise the measurement error introduced by air-buoyancy differences between the weight and the material being weighed on sensitive balances. This makes the weight suitable not only for routine calibration but also for use where measurement uncertainty documentation is required.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment provides each weight with an individually labelled impact-resistant plastic case, the serial number clearly inscribed on the case exterior to support traceability documentation without additional labelling. Laboratories operating under ISO 17025, GLP, or GMP frameworks can incorporate this weight directly into their calibration records, noting the unique identifier alongside the balance under test. The hard case provides adequate physical protection for the weight during bench handling, storage in a calibration kit, and routine transport within a facility.\u003c\/p\u003e\n \u003cp\u003eAs part of Adam Equipment's broader ASTM weight range — which spans Classes 0 through 4 and a wide selection of nominal values — this 200 g Class 1 weight can serve as both a stand-alone calibration reference and a component within a multi-point calibration protocol. The polished stainless steel construction resists corrosion from typical laboratory atmospheres and cleans readily with standard weight-cleaning procedures. Handling with clean forceps or lint-free gloves will help maintain the weight's surface condition and preserve its nominal mass value over extended service periods.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine calibration of analytical and precision balances in research and quality laboratories\u003c\/li\u003e\n \u003cli\u003ePharmaceutical QC balance verification where ANSI\/ASTM Class 1 certification is specified\u003c\/li\u003e\n \u003cli\u003eCalibration checks during equipment qualification (IQ\/OQ\/PQ) for regulated environments\u003c\/li\u003e\n \u003cli\u003eReference weight in inter-laboratory comparisons and round-robin testing programmes\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols requiring a high-accuracy mass standard at 200 g\u003c\/li\u003e\n \u003cli\u003eVerification of laboratory balances during regulatory inspections and customer audits\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 1 - 200g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 200g brings together the precision-matched 7.96 g\/cm³ density, individually serialised traceability, and protective hard case that precision laboratories require from a Class 1 calibration weight. Its polished stainless steel body resists the corrosion and mechanical wear that accompany frequent calibration cycles, ensuring that the weight continues to perform within ANSI\/ASTM Class 1 tolerances throughout its service life. For balance calibration programmes where accuracy and documentation integrity are both priorities, this weight provides a dependable and compliant solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880479957,"sku":"ASTM 1 - 200g","price":153.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_-_200g.jpg?v=1778277591"},{"product_id":"adam-equipment-astm-2-5g-accessory","title":"Adam Equipment ASTM 2 - 5g Calibration Weight, 5g Capacity, ASTM Class 2, Stainless Steel","description":"\u003ch2\u003ePrecision ASTM Class 2 Calibration Weight — ASTM 2 - 5g (5 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 5g is an individual 5 g calibration weight conforming to ANSI\/ASTM Class 2 tolerances, designed for precision balance calibration and routine quality-control verification. Positioned in the mid-accuracy range of the ASTM E617 classification system, Class 2 weights balance measurement accuracy with broad laboratory applicability, making them a practical choice for formulation, QA testing, and applied analytical work. The polished stainless steel construction provides long-term corrosion resistance and reliable dimensional stability across regular use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body produced to ANSI\/ASTM Class 2 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density meeting ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight; serial number recorded on the supplied protective case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for safe storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 2 requirements for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable across Classes 0–4 and multiple nominal values to suit a range of calibration needs\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish supports easy cleaning and visual contamination inspection\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 2 dimensional and tolerance specifications, this 5 g stainless steel weight provides consistent, repeatable mass values appropriate for precision balances typically operating at readabilities of 0.01 g or finer. The 7.9 g\/cm³ density meets the material specification for ASTM Classes 2 through 4 and, combined with the polished surface finish, reduces particulate accumulation during normal laboratory handling. Class 2 is a widely specified tolerance class for mid-level precision work, including formulation, compounding, and routine quality assurance balance verification.\u003c\/p\u003e\n \u003cp\u003eEvery weight in Adam Equipment's ASTM series ships in its own hard plastic case, with the unique serial number printed or engraved on the case exterior. This approach allows laboratories to quickly match a weight to its calibration documentation without relying solely on the weight itself, which is practical in environments where multiple weights of similar nominal values may be in use simultaneously. The case provides physical protection against impact damage and contamination between calibration events, helping to extend the weight's functional service life.\u003c\/p\u003e\n \u003cp\u003eWithin Adam Equipment's ASTM calibration weight family, which spans Classes 0 through 4 and a broad range of nominal values, the Class 2 range occupies the position between the tighter-tolerance Class 0 and 1 weights and the more general-purpose Class 3 and 4 offerings. This makes the 5 g Class 2 weight a sound choice for laboratories whose balances and measurement requirements sit in the middle of the ASTM accuracy spectrum. Routine cleaning with lint-free cloths and storage in the supplied case will maintain the weight's surface and mass stability between calibration intervals.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating precision balances in pharmaceutical, chemical, and food science quality laboratories\u003c\/li\u003e\n \u003cli\u003eFormulation and compounding verification in manufacturing environments\u003c\/li\u003e\n \u003cli\u003eBalance performance checks during routine equipment qualification activities\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols at 5 g on precision analytical balances\u003c\/li\u003e\n \u003cli\u003eEducational and research institutions specifying ANSI\/ASTM Class 2 calibration standards\u003c\/li\u003e\n \u003cli\u003eGeneral laboratory balance verification where Class 2 tolerances are required by procedure\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 2 - 5g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 5g gives precision laboratories a cost-effective route to ANSI\/ASTM Class 2 compliance backed by polished stainless steel construction, individual serialisation, and a protective hard case. The 7.9 g\/cm³ steel density and smooth finish maintain accuracy and cleanliness across regular use, while the case-mounted serial number simplifies traceability record-keeping under ISO, GLP, and other quality systems. For laboratories that require reliable Class 2 mass standards at 5 g without the tighter specifications — and associated cost — of Class 0 or 1 weights, this unit offers a well-matched, practical solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880512725,"sku":"ASTM 2 - 5g","price":106.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_-_5g.jpg?v=1778277606"},{"product_id":"adam-equipment-astm-1-2g-accessory","title":"Adam Equipment ASTM 1 - 2g Calibration Weight, 2g Capacity, ASTM Class 1, Stainless Steel","description":"\u003ch2\u003eHigh-Accuracy ASTM Class 1 Calibration Weight — ASTM 1 - 2g (2 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 2g is an individual 2 g calibration weight built to ANSI\/ASTM Class 1 specifications, providing high-accuracy mass verification for precision laboratory balances. Class 1 represents the second-highest classification in the ASTM E617 hierarchy, making this weight well suited to balances used in pharmaceutical quality control, chemical research, and other applications where certified mass traceability is essential. Manufactured from polished stainless steel at a density of 7.96 g\/cm³, it delivers consistent, repeatable performance in any controlled laboratory setting.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body manufactured to ANSI\/ASTM Class 1 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ steel density reduces air-buoyancy uncertainty in precision balance measurements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised for straightforward traceability in ISO, GLP, and GMP documentation\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case with serial number recorded on the exterior\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 1 requirements, suitable for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Class 0 through Class 4 and multiple nominal values for complete lab coverage\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish enables easy visual inspection and contamination removal\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eConforming to ANSI\/ASTM E617 Class 1 tolerances, this 2 g calibration weight offers high accuracy appropriate for precision balances operating at readabilities from 0.001 g downward. The 7.96 g\/cm³ steel density — the higher-density specification that Class 1 shares with Class 0 — is selected to minimise the measurement error introduced by air-buoyancy differences between the weight and the material being weighed on sensitive balances. This makes the weight suitable not only for routine calibration but also for use where measurement uncertainty documentation is required.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment provides each weight with an individually labelled impact-resistant plastic case, the serial number clearly inscribed on the case exterior to support traceability documentation without additional labelling. Laboratories operating under ISO 17025, GLP, or GMP frameworks can incorporate this weight directly into their calibration records, noting the unique identifier alongside the balance under test. The hard case provides adequate physical protection for the weight during bench handling, storage in a calibration kit, and routine transport within a facility.\u003c\/p\u003e\n \u003cp\u003eAs part of Adam Equipment's broader ASTM weight range — which spans Classes 0 through 4 and a wide selection of nominal values — this 2 g Class 1 weight can serve as both a stand-alone calibration reference and a component within a multi-point calibration protocol. The polished stainless steel construction resists corrosion from typical laboratory atmospheres and cleans readily with standard weight-cleaning procedures. Handling with clean forceps or lint-free gloves will help maintain the weight's surface condition and preserve its nominal mass value over extended service periods.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine calibration of analytical and precision balances in research and quality laboratories\u003c\/li\u003e\n \u003cli\u003ePharmaceutical QC balance verification where ANSI\/ASTM Class 1 certification is specified\u003c\/li\u003e\n \u003cli\u003eCalibration checks during equipment qualification (IQ\/OQ\/PQ) for regulated environments\u003c\/li\u003e\n \u003cli\u003eReference weight in inter-laboratory comparisons and round-robin testing programmes\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols requiring a high-accuracy mass standard at 2 g\u003c\/li\u003e\n \u003cli\u003eVerification of laboratory balances during regulatory inspections and customer audits\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 1 - 2g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 2g brings together the precision-matched 7.96 g\/cm³ density, individually serialised traceability, and protective hard case that precision laboratories require from a Class 1 calibration weight. Its polished stainless steel body resists the corrosion and mechanical wear that accompany frequent calibration cycles, ensuring that the weight continues to perform within ANSI\/ASTM Class 1 tolerances throughout its service life. For balance calibration programmes where accuracy and documentation integrity are both priorities, this weight provides a dependable and compliant solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880545493,"sku":"ASTM 1 - 2g","price":110.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_-_2g.jpg?v=1778277611"},{"product_id":"adam-equipment-astm-4-200g-accessory","title":"Adam Equipment ASTM 4 - 200g Calibration Weight, 200g Capacity, ASTM Class 4, Stainless Steel","description":"\u003ch2\u003eANSI\/ASTM Class 4 Individual Calibration Weight Calibration Weight — ASTM 4 - 200g (200 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 200g is an individual 200 g calibration weight conforming to ANSI\/ASTM Class 4 tolerances — the entry-level classification in the ASTM E617 weight hierarchy. Suited to general industrial and commercial weighing verification, this weight provides a compliant mass standard for platform scales, bench scales, and general-purpose laboratory balances where Class 4 accuracy is the appropriate specification. Manufactured from polished stainless steel with a density of 7.9 g\/cm³, it delivers corrosion resistance and consistent performance through routine industrial use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body built to ANSI\/ASTM Class 4 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density conforming to ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number recorded on the supplied hard case\u003c\/li\u003e\n \u003cli\u003eImpact-resistant plastic case included for secure storage and on-site transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 4 requirements for general industrial and commercial scale verification\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM Classes 0–4 and multiple nominal values for complete calibration coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface resists corrosion and supports straightforward cleaning in industrial settings\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eManufactured to ANSI\/ASTM E617 Class 4 dimensional and tolerance specifications, this 200 g stainless steel weight is built for practical, high-frequency use in industrial and commercial calibration settings. Class 4 tolerances are appropriate for verifying platform scales, counting scales, floor scales, and general-purpose balances that do not require the precision of the upper ASTM classes. The 7.9 g\/cm³ density and polished stainless steel surface resist corrosion from typical production and warehouse atmospheres, making this weight durable enough for demanding operational environments.\u003c\/p\u003e\n \u003cp\u003eAn individually labelled impact-resistant plastic case is included with each weight, the unique serial number clearly recorded on the case exterior. This enables basic traceability documentation for quality systems that reference ANSI\/ASTM class certification, without requiring the tighter tolerance controls of Class 0 through 2. The case makes storage between calibration intervals straightforward and protects the weight during movement within a production facility or between departments.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight series covers Classes 0 through 4 and a wide range of nominal values, making it straightforward to build a complete calibration kit from a single consistent product family. For facilities that perform frequent scale verification on the production floor or in shipping and receiving, the 200 g Class 4 weight provides the ANSI\/ASTM-compliant mass reference needed to meet internal SOPs and external regulatory requirements. Routine surface cleaning and storage in the supplied case will keep the weight in serviceable condition across its operational life.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating and verifying industrial platform scales and floor scales\u003c\/li\u003e\n \u003cli\u003eRoutine bench and counter scale verification in shipping, receiving, and logistics operations\u003c\/li\u003e\n \u003cli\u003eProduction floor balance and scale checks in manufacturing and processing facilities\u003c\/li\u003e\n \u003cli\u003eVerification of commercial weighing equipment in food service, retail, and distribution\u003c\/li\u003e\n \u003cli\u003eGeneral QC scale checks where ANSI\/ASTM Class 4 documentation is required\u003c\/li\u003e\n \u003cli\u003eTechnical training programmes requiring a robust, entry-level ANSI\/ASTM calibration weight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 4 - 200g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 200g is a straightforward, compliant choice for any facility that needs a documented ANSI\/ASTM Class 4 mass standard for routine scale and balance maintenance at 200 g. Its polished stainless steel construction provides adequate corrosion resistance and longevity for regular industrial handling, the individual serialisation keeps calibration records clear and auditable, and the protective hard case ensures the weight is ready for use whenever a calibration check is required. For operations where balance and scale compliance is a daily requirement, this weight delivers the reliability and certification needed without overspecifying the accuracy class.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880578261,"sku":"ASTM 4 - 200g","price":106.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_-_200g.jpg?v=1778277617"},{"product_id":"adam-equipment-astm-1-50g-accessory","title":"Adam Equipment ASTM 1 - 50g Calibration Weight, 50g Capacity, ASTM Class 1, Stainless Steel","description":"\u003ch2\u003eHigh-Accuracy ASTM Class 1 Calibration Weight — ASTM 1 - 50g (50 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 50g is an individual 50 g calibration weight built to ANSI\/ASTM Class 1 specifications, providing high-accuracy mass verification for precision laboratory balances. Class 1 represents the second-highest classification in the ASTM E617 hierarchy, making this weight well suited to balances used in pharmaceutical quality control, chemical research, and other applications where certified mass traceability is essential. Manufactured from polished stainless steel at a density of 7.96 g\/cm³, it delivers consistent, repeatable performance in any controlled laboratory setting.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body manufactured to ANSI\/ASTM Class 1 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ steel density reduces air-buoyancy uncertainty in precision balance measurements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised for straightforward traceability in ISO, GLP, and GMP documentation\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case with serial number recorded on the exterior\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 1 requirements, suitable for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Class 0 through Class 4 and multiple nominal values for complete lab coverage\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish enables easy visual inspection and contamination removal\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eConforming to ANSI\/ASTM E617 Class 1 tolerances, this 50 g calibration weight offers high accuracy appropriate for precision balances operating at readabilities from 0.001 g downward. The 7.96 g\/cm³ steel density — the higher-density specification that Class 1 shares with Class 0 — is selected to minimise the measurement error introduced by air-buoyancy differences between the weight and the material being weighed on sensitive balances. This makes the weight suitable not only for routine calibration but also for use where measurement uncertainty documentation is required.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment provides each weight with an individually labelled impact-resistant plastic case, the serial number clearly inscribed on the case exterior to support traceability documentation without additional labelling. Laboratories operating under ISO 17025, GLP, or GMP frameworks can incorporate this weight directly into their calibration records, noting the unique identifier alongside the balance under test. The hard case provides adequate physical protection for the weight during bench handling, storage in a calibration kit, and routine transport within a facility.\u003c\/p\u003e\n \u003cp\u003eAs part of Adam Equipment's broader ASTM weight range — which spans Classes 0 through 4 and a wide selection of nominal values — this 50 g Class 1 weight can serve as both a stand-alone calibration reference and a component within a multi-point calibration protocol. The polished stainless steel construction resists corrosion from typical laboratory atmospheres and cleans readily with standard weight-cleaning procedures. Handling with clean forceps or lint-free gloves will help maintain the weight's surface condition and preserve its nominal mass value over extended service periods.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine calibration of analytical and precision balances in research and quality laboratories\u003c\/li\u003e\n \u003cli\u003ePharmaceutical QC balance verification where ANSI\/ASTM Class 1 certification is specified\u003c\/li\u003e\n \u003cli\u003eCalibration checks during equipment qualification (IQ\/OQ\/PQ) for regulated environments\u003c\/li\u003e\n \u003cli\u003eReference weight in inter-laboratory comparisons and round-robin testing programmes\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols requiring a high-accuracy mass standard at 50 g\u003c\/li\u003e\n \u003cli\u003eVerification of laboratory balances during regulatory inspections and customer audits\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 1 - 50g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 50g brings together the precision-matched 7.96 g\/cm³ density, individually serialised traceability, and protective hard case that precision laboratories require from a Class 1 calibration weight. Its polished stainless steel body resists the corrosion and mechanical wear that accompany frequent calibration cycles, ensuring that the weight continues to perform within ANSI\/ASTM Class 1 tolerances throughout its service life. For balance calibration programmes where accuracy and documentation integrity are both priorities, this weight provides a dependable and compliant solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880611029,"sku":"ASTM 1 - 50g","price":127.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_-_50g.jpg?v=1778277623"},{"product_id":"adam-equipment-astm-4-500g-accessory","title":"Adam Equipment ASTM 4 - 500g Calibration Weight, 500g Capacity, ASTM Class 4, Stainless Steel","description":"\u003ch2\u003eANSI\/ASTM Class 4 Individual Calibration Weight Calibration Weight — ASTM 4 - 500g (500 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 500g is an individual 500 g calibration weight conforming to ANSI\/ASTM Class 4 tolerances — the entry-level classification in the ASTM E617 weight hierarchy. Suited to general industrial and commercial weighing verification, this weight provides a compliant mass standard for platform scales, bench scales, and general-purpose laboratory balances where Class 4 accuracy is the appropriate specification. Manufactured from polished stainless steel with a density of 7.9 g\/cm³, it delivers corrosion resistance and consistent performance through routine industrial use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body built to ANSI\/ASTM Class 4 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density conforming to ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number recorded on the supplied hard case\u003c\/li\u003e\n \u003cli\u003eImpact-resistant plastic case included for secure storage and on-site transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 4 requirements for general industrial and commercial scale verification\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM Classes 0–4 and multiple nominal values for complete calibration coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface resists corrosion and supports straightforward cleaning in industrial settings\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eManufactured to ANSI\/ASTM E617 Class 4 dimensional and tolerance specifications, this 500 g stainless steel weight is built for practical, high-frequency use in industrial and commercial calibration settings. Class 4 tolerances are appropriate for verifying platform scales, counting scales, floor scales, and general-purpose balances that do not require the precision of the upper ASTM classes. The 7.9 g\/cm³ density and polished stainless steel surface resist corrosion from typical production and warehouse atmospheres, making this weight durable enough for demanding operational environments.\u003c\/p\u003e\n \u003cp\u003eAn individually labelled impact-resistant plastic case is included with each weight, the unique serial number clearly recorded on the case exterior. This enables basic traceability documentation for quality systems that reference ANSI\/ASTM class certification, without requiring the tighter tolerance controls of Class 0 through 2. The case makes storage between calibration intervals straightforward and protects the weight during movement within a production facility or between departments.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight series covers Classes 0 through 4 and a wide range of nominal values, making it straightforward to build a complete calibration kit from a single consistent product family. For facilities that perform frequent scale verification on the production floor or in shipping and receiving, the 500 g Class 4 weight provides the ANSI\/ASTM-compliant mass reference needed to meet internal SOPs and external regulatory requirements. Routine surface cleaning and storage in the supplied case will keep the weight in serviceable condition across its operational life.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating and verifying industrial platform scales and floor scales\u003c\/li\u003e\n \u003cli\u003eRoutine bench and counter scale verification in shipping, receiving, and logistics operations\u003c\/li\u003e\n \u003cli\u003eProduction floor balance and scale checks in manufacturing and processing facilities\u003c\/li\u003e\n \u003cli\u003eVerification of commercial weighing equipment in food service, retail, and distribution\u003c\/li\u003e\n \u003cli\u003eGeneral QC scale checks where ANSI\/ASTM Class 4 documentation is required\u003c\/li\u003e\n \u003cli\u003eTechnical training programmes requiring a robust, entry-level ANSI\/ASTM calibration weight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 4 - 500g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 500g is a straightforward, compliant choice for any facility that needs a documented ANSI\/ASTM Class 4 mass standard for routine scale and balance maintenance at 500 g. Its polished stainless steel construction provides adequate corrosion resistance and longevity for regular industrial handling, the individual serialisation keeps calibration records clear and auditable, and the protective hard case ensures the weight is ready for use whenever a calibration check is required. For operations where balance and scale compliance is a daily requirement, this weight delivers the reliability and certification needed without overspecifying the accuracy class.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880643797,"sku":"ASTM 4 - 500g","price":127.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_-_500g.jpg?v=1778277640"},{"product_id":"adam-equipment-astm-4-1000g-accessory","title":"Adam Equipment ASTM 4 - 1000g Calibration Weight, 1000g Capacity, ASTM Class 4, Stainless Steel","description":"\u003ch2\u003eANSI\/ASTM Class 4 Individual Calibration Weight Calibration Weight — ASTM 4 - 1000g (1 kg)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 1000g is an individual 1 kg calibration weight conforming to ANSI\/ASTM Class 4 tolerances — the entry-level classification in the ASTM E617 weight hierarchy. Suited to general industrial and commercial weighing verification, this weight provides a compliant mass standard for platform scales, bench scales, and general-purpose laboratory balances where Class 4 accuracy is the appropriate specification. Manufactured from polished stainless steel with a density of 7.9 g\/cm³, it delivers corrosion resistance and consistent performance through routine industrial use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body built to ANSI\/ASTM Class 4 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density conforming to ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number recorded on the supplied hard case\u003c\/li\u003e\n \u003cli\u003eImpact-resistant plastic case included for secure storage and on-site transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 4 requirements for general industrial and commercial scale verification\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM Classes 0–4 and multiple nominal values for complete calibration coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface resists corrosion and supports straightforward cleaning in industrial settings\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eManufactured to ANSI\/ASTM E617 Class 4 dimensional and tolerance specifications, this 1 kg stainless steel weight is built for practical, high-frequency use in industrial and commercial calibration settings. Class 4 tolerances are appropriate for verifying platform scales, counting scales, floor scales, and general-purpose balances that do not require the precision of the upper ASTM classes. The 7.9 g\/cm³ density and polished stainless steel surface resist corrosion from typical production and warehouse atmospheres, making this weight durable enough for demanding operational environments.\u003c\/p\u003e\n \u003cp\u003eAn individually labelled impact-resistant plastic case is included with each weight, the unique serial number clearly recorded on the case exterior. This enables basic traceability documentation for quality systems that reference ANSI\/ASTM class certification, without requiring the tighter tolerance controls of Class 0 through 2. The case makes storage between calibration intervals straightforward and protects the weight during movement within a production facility or between departments.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight series covers Classes 0 through 4 and a wide range of nominal values, making it straightforward to build a complete calibration kit from a single consistent product family. For facilities that perform frequent scale verification on the production floor or in shipping and receiving, the 1 kg Class 4 weight provides the ANSI\/ASTM-compliant mass reference needed to meet internal SOPs and external regulatory requirements. Routine surface cleaning and storage in the supplied case will keep the weight in serviceable condition across its operational life.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating and verifying industrial platform scales and floor scales\u003c\/li\u003e\n \u003cli\u003eRoutine bench and counter scale verification in shipping, receiving, and logistics operations\u003c\/li\u003e\n \u003cli\u003eProduction floor balance and scale checks in manufacturing and processing facilities\u003c\/li\u003e\n \u003cli\u003eVerification of commercial weighing equipment in food service, retail, and distribution\u003c\/li\u003e\n \u003cli\u003eGeneral QC scale checks where ANSI\/ASTM Class 4 documentation is required\u003c\/li\u003e\n \u003cli\u003eTechnical training programmes requiring a robust, entry-level ANSI\/ASTM calibration weight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 4 - 1000g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 1000g is a straightforward, compliant choice for any facility that needs a documented ANSI\/ASTM Class 4 mass standard for routine scale and balance maintenance at 1 kg. Its polished stainless steel construction provides adequate corrosion resistance and longevity for regular industrial handling, the individual serialisation keeps calibration records clear and auditable, and the protective hard case ensures the weight is ready for use whenever a calibration check is required. For operations where balance and scale compliance is a daily requirement, this weight delivers the reliability and certification needed without overspecifying the accuracy class.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880676565,"sku":"ASTM 4 - 1000g","price":216.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_-_1000g.jpg?v=1778277647"},{"product_id":"adam-equipment-astm-2-2g-accessory","title":"Adam Equipment ASTM 2 - 2g Calibration Weight, 2g Capacity, ASTM Class 2, Stainless Steel","description":"\u003ch2\u003ePrecision ASTM Class 2 Calibration Weight — ASTM 2 - 2g (2 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 2g is an individual 2 g calibration weight conforming to ANSI\/ASTM Class 2 tolerances, designed for precision balance calibration and routine quality-control verification. Positioned in the mid-accuracy range of the ASTM E617 classification system, Class 2 weights balance measurement accuracy with broad laboratory applicability, making them a practical choice for formulation, QA testing, and applied analytical work. The polished stainless steel construction provides long-term corrosion resistance and reliable dimensional stability across regular use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body produced to ANSI\/ASTM Class 2 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density meeting ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight; serial number recorded on the supplied protective case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for safe storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 2 requirements for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable across Classes 0–4 and multiple nominal values to suit a range of calibration needs\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish supports easy cleaning and visual contamination inspection\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 2 dimensional and tolerance specifications, this 2 g stainless steel weight provides consistent, repeatable mass values appropriate for precision balances typically operating at readabilities of 0.01 g or finer. The 7.9 g\/cm³ density meets the material specification for ASTM Classes 2 through 4 and, combined with the polished surface finish, reduces particulate accumulation during normal laboratory handling. Class 2 is a widely specified tolerance class for mid-level precision work, including formulation, compounding, and routine quality assurance balance verification.\u003c\/p\u003e\n \u003cp\u003eEvery weight in Adam Equipment's ASTM series ships in its own hard plastic case, with the unique serial number printed or engraved on the case exterior. This approach allows laboratories to quickly match a weight to its calibration documentation without relying solely on the weight itself, which is practical in environments where multiple weights of similar nominal values may be in use simultaneously. The case provides physical protection against impact damage and contamination between calibration events, helping to extend the weight's functional service life.\u003c\/p\u003e\n \u003cp\u003eWithin Adam Equipment's ASTM calibration weight family, which spans Classes 0 through 4 and a broad range of nominal values, the Class 2 range occupies the position between the tighter-tolerance Class 0 and 1 weights and the more general-purpose Class 3 and 4 offerings. This makes the 2 g Class 2 weight a sound choice for laboratories whose balances and measurement requirements sit in the middle of the ASTM accuracy spectrum. Routine cleaning with lint-free cloths and storage in the supplied case will maintain the weight's surface and mass stability between calibration intervals.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating precision balances in pharmaceutical, chemical, and food science quality laboratories\u003c\/li\u003e\n \u003cli\u003eFormulation and compounding verification in manufacturing environments\u003c\/li\u003e\n \u003cli\u003eBalance performance checks during routine equipment qualification activities\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols at 2 g on precision analytical balances\u003c\/li\u003e\n \u003cli\u003eEducational and research institutions specifying ANSI\/ASTM Class 2 calibration standards\u003c\/li\u003e\n \u003cli\u003eGeneral laboratory balance verification where Class 2 tolerances are required by procedure\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 2 - 2g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 2g gives precision laboratories a cost-effective route to ANSI\/ASTM Class 2 compliance backed by polished stainless steel construction, individual serialisation, and a protective hard case. The 7.9 g\/cm³ steel density and smooth finish maintain accuracy and cleanliness across regular use, while the case-mounted serial number simplifies traceability record-keeping under ISO, GLP, and other quality systems. For laboratories that require reliable Class 2 mass standards at 2 g without the tighter specifications — and associated cost — of Class 0 or 1 weights, this unit offers a well-matched, practical solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880709333,"sku":"ASTM 2 - 2g","price":97.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_-_2g.jpg?v=1778277653"},{"product_id":"adam-equipment-astm-1-1000g-accessory","title":"Adam Equipment ASTM 1 - 1000g Calibration Weight, 1000g Capacity, ASTM Class 1, Stainless Steel","description":"\u003ch2\u003eHigh-Accuracy ASTM Class 1 Calibration Weight — ASTM 1 - 1000g (1 kg)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 1000g is an individual 1 kg calibration weight built to ANSI\/ASTM Class 1 specifications, providing high-accuracy mass verification for precision laboratory balances. Class 1 represents the second-highest classification in the ASTM E617 hierarchy, making this weight well suited to balances used in pharmaceutical quality control, chemical research, and other applications where certified mass traceability is essential. Manufactured from polished stainless steel at a density of 7.96 g\/cm³, it delivers consistent, repeatable performance in any controlled laboratory setting.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body manufactured to ANSI\/ASTM Class 1 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ steel density reduces air-buoyancy uncertainty in precision balance measurements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised for straightforward traceability in ISO, GLP, and GMP documentation\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case with serial number recorded on the exterior\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 1 requirements, suitable for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Class 0 through Class 4 and multiple nominal values for complete lab coverage\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish enables easy visual inspection and contamination removal\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eConforming to ANSI\/ASTM E617 Class 1 tolerances, this 1 kg calibration weight offers high accuracy appropriate for precision balances operating at readabilities from 0.001 g downward. The 7.96 g\/cm³ steel density — the higher-density specification that Class 1 shares with Class 0 — is selected to minimise the measurement error introduced by air-buoyancy differences between the weight and the material being weighed on sensitive balances. This makes the weight suitable not only for routine calibration but also for use where measurement uncertainty documentation is required.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment provides each weight with an individually labelled impact-resistant plastic case, the serial number clearly inscribed on the case exterior to support traceability documentation without additional labelling. Laboratories operating under ISO 17025, GLP, or GMP frameworks can incorporate this weight directly into their calibration records, noting the unique identifier alongside the balance under test. The hard case provides adequate physical protection for the weight during bench handling, storage in a calibration kit, and routine transport within a facility.\u003c\/p\u003e\n \u003cp\u003eAs part of Adam Equipment's broader ASTM weight range — which spans Classes 0 through 4 and a wide selection of nominal values — this 1 kg Class 1 weight can serve as both a stand-alone calibration reference and a component within a multi-point calibration protocol. The polished stainless steel construction resists corrosion from typical laboratory atmospheres and cleans readily with standard weight-cleaning procedures. Handling with clean forceps or lint-free gloves will help maintain the weight's surface condition and preserve its nominal mass value over extended service periods.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine calibration of analytical and precision balances in research and quality laboratories\u003c\/li\u003e\n \u003cli\u003ePharmaceutical QC balance verification where ANSI\/ASTM Class 1 certification is specified\u003c\/li\u003e\n \u003cli\u003eCalibration checks during equipment qualification (IQ\/OQ\/PQ) for regulated environments\u003c\/li\u003e\n \u003cli\u003eReference weight in inter-laboratory comparisons and round-robin testing programmes\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols requiring a high-accuracy mass standard at 1 kg\u003c\/li\u003e\n \u003cli\u003eVerification of laboratory balances during regulatory inspections and customer audits\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 1 - 1000g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 - 1000g brings together the precision-matched 7.96 g\/cm³ density, individually serialised traceability, and protective hard case that precision laboratories require from a Class 1 calibration weight. Its polished stainless steel body resists the corrosion and mechanical wear that accompany frequent calibration cycles, ensuring that the weight continues to perform within ANSI\/ASTM Class 1 tolerances throughout its service life. For balance calibration programmes where accuracy and documentation integrity are both priorities, this weight provides a dependable and compliant solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880742101,"sku":"ASTM 1 - 1000g","price":399.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_-_1000g.jpg?v=1778277669"},{"product_id":"adam-equipment-astm-2-200g-accessory","title":"Adam Equipment ASTM 2 - 200g Calibration Weight, 200g Capacity, ASTM Class 2, Stainless Steel","description":"\u003ch2\u003ePrecision ASTM Class 2 Calibration Weight — ASTM 2 - 200g (200 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 200g is an individual 200 g calibration weight conforming to ANSI\/ASTM Class 2 tolerances, designed for precision balance calibration and routine quality-control verification. Positioned in the mid-accuracy range of the ASTM E617 classification system, Class 2 weights balance measurement accuracy with broad laboratory applicability, making them a practical choice for formulation, QA testing, and applied analytical work. The polished stainless steel construction provides long-term corrosion resistance and reliable dimensional stability across regular use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body produced to ANSI\/ASTM Class 2 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density meeting ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight; serial number recorded on the supplied protective case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for safe storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 2 requirements for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable across Classes 0–4 and multiple nominal values to suit a range of calibration needs\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish supports easy cleaning and visual contamination inspection\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 2 dimensional and tolerance specifications, this 200 g stainless steel weight provides consistent, repeatable mass values appropriate for precision balances typically operating at readabilities of 0.01 g or finer. The 7.9 g\/cm³ density meets the material specification for ASTM Classes 2 through 4 and, combined with the polished surface finish, reduces particulate accumulation during normal laboratory handling. Class 2 is a widely specified tolerance class for mid-level precision work, including formulation, compounding, and routine quality assurance balance verification.\u003c\/p\u003e\n \u003cp\u003eEvery weight in Adam Equipment's ASTM series ships in its own hard plastic case, with the unique serial number printed or engraved on the case exterior. This approach allows laboratories to quickly match a weight to its calibration documentation without relying solely on the weight itself, which is practical in environments where multiple weights of similar nominal values may be in use simultaneously. The case provides physical protection against impact damage and contamination between calibration events, helping to extend the weight's functional service life.\u003c\/p\u003e\n \u003cp\u003eWithin Adam Equipment's ASTM calibration weight family, which spans Classes 0 through 4 and a broad range of nominal values, the Class 2 range occupies the position between the tighter-tolerance Class 0 and 1 weights and the more general-purpose Class 3 and 4 offerings. This makes the 200 g Class 2 weight a sound choice for laboratories whose balances and measurement requirements sit in the middle of the ASTM accuracy spectrum. Routine cleaning with lint-free cloths and storage in the supplied case will maintain the weight's surface and mass stability between calibration intervals.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating precision balances in pharmaceutical, chemical, and food science quality laboratories\u003c\/li\u003e\n \u003cli\u003eFormulation and compounding verification in manufacturing environments\u003c\/li\u003e\n \u003cli\u003eBalance performance checks during routine equipment qualification activities\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols at 200 g on precision analytical balances\u003c\/li\u003e\n \u003cli\u003eEducational and research institutions specifying ANSI\/ASTM Class 2 calibration standards\u003c\/li\u003e\n \u003cli\u003eGeneral laboratory balance verification where Class 2 tolerances are required by procedure\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 2 - 200g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 200g gives precision laboratories a cost-effective route to ANSI\/ASTM Class 2 compliance backed by polished stainless steel construction, individual serialisation, and a protective hard case. The 7.9 g\/cm³ steel density and smooth finish maintain accuracy and cleanliness across regular use, while the case-mounted serial number simplifies traceability record-keeping under ISO, GLP, and other quality systems. For laboratories that require reliable Class 2 mass standards at 200 g without the tighter specifications — and associated cost — of Class 0 or 1 weights, this unit offers a well-matched, practical solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880774869,"sku":"ASTM 2 - 200g","price":123.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_-_200g.jpg?v=1778277675"},{"product_id":"adam-equipment-astm-2-1000g-accessory","title":"Adam Equipment ASTM 2 - 1000g Calibration Weight, 1000g Capacity, lb \/ kg Readability, ASTM Class 2, Stainless Steel","description":"\u003ch2\u003ePrecision ASTM Class 2 Calibration Weight — ASTM 2 - 1000g (1 kg)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 1000g is an individual 1 kg calibration weight conforming to ANSI\/ASTM Class 2 tolerances, designed for precision balance calibration and routine quality-control verification. Positioned in the mid-accuracy range of the ASTM E617 classification system, Class 2 weights balance measurement accuracy with broad laboratory applicability, making them a practical choice for formulation, QA testing, and applied analytical work. The polished stainless steel construction provides long-term corrosion resistance and reliable dimensional stability across regular use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body produced to ANSI\/ASTM Class 2 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density meeting ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight; serial number recorded on the supplied protective case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for safe storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 2 requirements for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable across Classes 0–4 and multiple nominal values to suit a range of calibration needs\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish supports easy cleaning and visual contamination inspection\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 2 dimensional and tolerance specifications, this 1 kg stainless steel weight provides consistent, repeatable mass values appropriate for precision balances typically operating at readabilities of 0.01 g or finer. The 7.9 g\/cm³ density meets the material specification for ASTM Classes 2 through 4 and, combined with the polished surface finish, reduces particulate accumulation during normal laboratory handling. Class 2 is a widely specified tolerance class for mid-level precision work, including formulation, compounding, and routine quality assurance balance verification.\u003c\/p\u003e\n \u003cp\u003eEvery weight in Adam Equipment's ASTM series ships in its own hard plastic case, with the unique serial number printed or engraved on the case exterior. This approach allows laboratories to quickly match a weight to its calibration documentation without relying solely on the weight itself, which is practical in environments where multiple weights of similar nominal values may be in use simultaneously. The case provides physical protection against impact damage and contamination between calibration events, helping to extend the weight's functional service life.\u003c\/p\u003e\n \u003cp\u003eWithin Adam Equipment's ASTM calibration weight family, which spans Classes 0 through 4 and a broad range of nominal values, the Class 2 range occupies the position between the tighter-tolerance Class 0 and 1 weights and the more general-purpose Class 3 and 4 offerings. This makes the 1 kg Class 2 weight a sound choice for laboratories whose balances and measurement requirements sit in the middle of the ASTM accuracy spectrum. Routine cleaning with lint-free cloths and storage in the supplied case will maintain the weight's surface and mass stability between calibration intervals.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating precision balances in pharmaceutical, chemical, and food science quality laboratories\u003c\/li\u003e\n \u003cli\u003eFormulation and compounding verification in manufacturing environments\u003c\/li\u003e\n \u003cli\u003eBalance performance checks during routine equipment qualification activities\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols at 1 kg on precision analytical balances\u003c\/li\u003e\n \u003cli\u003eEducational and research institutions specifying ANSI\/ASTM Class 2 calibration standards\u003c\/li\u003e\n \u003cli\u003eGeneral laboratory balance verification where Class 2 tolerances are required by procedure\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 2 - 1000g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 1000g gives precision laboratories a cost-effective route to ANSI\/ASTM Class 2 compliance backed by polished stainless steel construction, individual serialisation, and a protective hard case. The 7.9 g\/cm³ steel density and smooth finish maintain accuracy and cleanliness across regular use, while the case-mounted serial number simplifies traceability record-keeping under ISO, GLP, and other quality systems. For laboratories that require reliable Class 2 mass standards at 1 kg without the tighter specifications — and associated cost — of Class 0 or 1 weights, this unit offers a well-matched, practical solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880807637,"sku":"ASTM 2 - 1000g","price":250.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_-_1000g.jpg?v=1778277681"},{"product_id":"adam-equipment-astm-4-50g-accessory","title":"Adam Equipment ASTM 4 - 50g Calibration Weight, 50g Capacity, ASTM Class 4, Stainless Steel","description":"\u003ch2\u003eANSI\/ASTM Class 4 Individual Calibration Weight Calibration Weight — ASTM 4 - 50g (50 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 50g is an individual 50 g calibration weight conforming to ANSI\/ASTM Class 4 tolerances — the entry-level classification in the ASTM E617 weight hierarchy. Suited to general industrial and commercial weighing verification, this weight provides a compliant mass standard for platform scales, bench scales, and general-purpose laboratory balances where Class 4 accuracy is the appropriate specification. Manufactured from polished stainless steel with a density of 7.9 g\/cm³, it delivers corrosion resistance and consistent performance through routine industrial use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body built to ANSI\/ASTM Class 4 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density conforming to ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number recorded on the supplied hard case\u003c\/li\u003e\n \u003cli\u003eImpact-resistant plastic case included for secure storage and on-site transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 4 requirements for general industrial and commercial scale verification\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM Classes 0–4 and multiple nominal values for complete calibration coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface resists corrosion and supports straightforward cleaning in industrial settings\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eManufactured to ANSI\/ASTM E617 Class 4 dimensional and tolerance specifications, this 50 g stainless steel weight is built for practical, high-frequency use in industrial and commercial calibration settings. Class 4 tolerances are appropriate for verifying platform scales, counting scales, floor scales, and general-purpose balances that do not require the precision of the upper ASTM classes. The 7.9 g\/cm³ density and polished stainless steel surface resist corrosion from typical production and warehouse atmospheres, making this weight durable enough for demanding operational environments.\u003c\/p\u003e\n \u003cp\u003eAn individually labelled impact-resistant plastic case is included with each weight, the unique serial number clearly recorded on the case exterior. This enables basic traceability documentation for quality systems that reference ANSI\/ASTM class certification, without requiring the tighter tolerance controls of Class 0 through 2. The case makes storage between calibration intervals straightforward and protects the weight during movement within a production facility or between departments.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight series covers Classes 0 through 4 and a wide range of nominal values, making it straightforward to build a complete calibration kit from a single consistent product family. For facilities that perform frequent scale verification on the production floor or in shipping and receiving, the 50 g Class 4 weight provides the ANSI\/ASTM-compliant mass reference needed to meet internal SOPs and external regulatory requirements. Routine surface cleaning and storage in the supplied case will keep the weight in serviceable condition across its operational life.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating and verifying industrial platform scales and floor scales\u003c\/li\u003e\n \u003cli\u003eRoutine bench and counter scale verification in shipping, receiving, and logistics operations\u003c\/li\u003e\n \u003cli\u003eProduction floor balance and scale checks in manufacturing and processing facilities\u003c\/li\u003e\n \u003cli\u003eVerification of commercial weighing equipment in food service, retail, and distribution\u003c\/li\u003e\n \u003cli\u003eGeneral QC scale checks where ANSI\/ASTM Class 4 documentation is required\u003c\/li\u003e\n \u003cli\u003eTechnical training programmes requiring a robust, entry-level ANSI\/ASTM calibration weight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 4 - 50g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 50g is a straightforward, compliant choice for any facility that needs a documented ANSI\/ASTM Class 4 mass standard for routine scale and balance maintenance at 50 g. Its polished stainless steel construction provides adequate corrosion resistance and longevity for regular industrial handling, the individual serialisation keeps calibration records clear and auditable, and the protective hard case ensures the weight is ready for use whenever a calibration check is required. For operations where balance and scale compliance is a daily requirement, this weight delivers the reliability and certification needed without overspecifying the accuracy class.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880840405,"sku":"ASTM 4 - 50g","price":93.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_-_50g.jpg?v=1778277696"},{"product_id":"adam-equipment-astm-4-100g-accessory","title":"Adam Equipment ASTM 4 - 100g Calibration Weight, 100g Capacity, ASTM Class 4, Stainless Steel","description":"\u003ch2\u003eANSI\/ASTM Class 4 Individual Calibration Weight Calibration Weight — ASTM 4 - 100g (100 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 100g is an individual 100 g calibration weight conforming to ANSI\/ASTM Class 4 tolerances — the entry-level classification in the ASTM E617 weight hierarchy. Suited to general industrial and commercial weighing verification, this weight provides a compliant mass standard for platform scales, bench scales, and general-purpose laboratory balances where Class 4 accuracy is the appropriate specification. Manufactured from polished stainless steel with a density of 7.9 g\/cm³, it delivers corrosion resistance and consistent performance through routine industrial use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body built to ANSI\/ASTM Class 4 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density conforming to ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number recorded on the supplied hard case\u003c\/li\u003e\n \u003cli\u003eImpact-resistant plastic case included for secure storage and on-site transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 4 requirements for general industrial and commercial scale verification\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM Classes 0–4 and multiple nominal values for complete calibration coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface resists corrosion and supports straightforward cleaning in industrial settings\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eManufactured to ANSI\/ASTM E617 Class 4 dimensional and tolerance specifications, this 100 g stainless steel weight is built for practical, high-frequency use in industrial and commercial calibration settings. Class 4 tolerances are appropriate for verifying platform scales, counting scales, floor scales, and general-purpose balances that do not require the precision of the upper ASTM classes. The 7.9 g\/cm³ density and polished stainless steel surface resist corrosion from typical production and warehouse atmospheres, making this weight durable enough for demanding operational environments.\u003c\/p\u003e\n \u003cp\u003eAn individually labelled impact-resistant plastic case is included with each weight, the unique serial number clearly recorded on the case exterior. This enables basic traceability documentation for quality systems that reference ANSI\/ASTM class certification, without requiring the tighter tolerance controls of Class 0 through 2. The case makes storage between calibration intervals straightforward and protects the weight during movement within a production facility or between departments.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight series covers Classes 0 through 4 and a wide range of nominal values, making it straightforward to build a complete calibration kit from a single consistent product family. For facilities that perform frequent scale verification on the production floor or in shipping and receiving, the 100 g Class 4 weight provides the ANSI\/ASTM-compliant mass reference needed to meet internal SOPs and external regulatory requirements. Routine surface cleaning and storage in the supplied case will keep the weight in serviceable condition across its operational life.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating and verifying industrial platform scales and floor scales\u003c\/li\u003e\n \u003cli\u003eRoutine bench and counter scale verification in shipping, receiving, and logistics operations\u003c\/li\u003e\n \u003cli\u003eProduction floor balance and scale checks in manufacturing and processing facilities\u003c\/li\u003e\n \u003cli\u003eVerification of commercial weighing equipment in food service, retail, and distribution\u003c\/li\u003e\n \u003cli\u003eGeneral QC scale checks where ANSI\/ASTM Class 4 documentation is required\u003c\/li\u003e\n \u003cli\u003eTechnical training programmes requiring a robust, entry-level ANSI\/ASTM calibration weight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 4 - 100g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 100g is a straightforward, compliant choice for any facility that needs a documented ANSI\/ASTM Class 4 mass standard for routine scale and balance maintenance at 100 g. Its polished stainless steel construction provides adequate corrosion resistance and longevity for regular industrial handling, the individual serialisation keeps calibration records clear and auditable, and the protective hard case ensures the weight is ready for use whenever a calibration check is required. For operations where balance and scale compliance is a daily requirement, this weight delivers the reliability and certification needed without overspecifying the accuracy class.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880873173,"sku":"ASTM 4 - 100g","price":97.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_-_100g.jpg?v=1778277703"},{"product_id":"adam-equipment-astm-2-500g-accessory","title":"Adam Equipment ASTM 2 - 500g Calibration Weight, 500g Capacity, ASTM Class 2, Stainless Steel","description":"\u003ch2\u003ePrecision ASTM Class 2 Calibration Weight — ASTM 2 - 500g (500 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 500g is an individual 500 g calibration weight conforming to ANSI\/ASTM Class 2 tolerances, designed for precision balance calibration and routine quality-control verification. Positioned in the mid-accuracy range of the ASTM E617 classification system, Class 2 weights balance measurement accuracy with broad laboratory applicability, making them a practical choice for formulation, QA testing, and applied analytical work. The polished stainless steel construction provides long-term corrosion resistance and reliable dimensional stability across regular use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body produced to ANSI\/ASTM Class 2 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density meeting ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight; serial number recorded on the supplied protective case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for safe storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 2 requirements for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable across Classes 0–4 and multiple nominal values to suit a range of calibration needs\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish supports easy cleaning and visual contamination inspection\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 2 dimensional and tolerance specifications, this 500 g stainless steel weight provides consistent, repeatable mass values appropriate for precision balances typically operating at readabilities of 0.01 g or finer. The 7.9 g\/cm³ density meets the material specification for ASTM Classes 2 through 4 and, combined with the polished surface finish, reduces particulate accumulation during normal laboratory handling. Class 2 is a widely specified tolerance class for mid-level precision work, including formulation, compounding, and routine quality assurance balance verification.\u003c\/p\u003e\n \u003cp\u003eEvery weight in Adam Equipment's ASTM series ships in its own hard plastic case, with the unique serial number printed or engraved on the case exterior. This approach allows laboratories to quickly match a weight to its calibration documentation without relying solely on the weight itself, which is practical in environments where multiple weights of similar nominal values may be in use simultaneously. The case provides physical protection against impact damage and contamination between calibration events, helping to extend the weight's functional service life.\u003c\/p\u003e\n \u003cp\u003eWithin Adam Equipment's ASTM calibration weight family, which spans Classes 0 through 4 and a broad range of nominal values, the Class 2 range occupies the position between the tighter-tolerance Class 0 and 1 weights and the more general-purpose Class 3 and 4 offerings. This makes the 500 g Class 2 weight a sound choice for laboratories whose balances and measurement requirements sit in the middle of the ASTM accuracy spectrum. Routine cleaning with lint-free cloths and storage in the supplied case will maintain the weight's surface and mass stability between calibration intervals.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating precision balances in pharmaceutical, chemical, and food science quality laboratories\u003c\/li\u003e\n \u003cli\u003eFormulation and compounding verification in manufacturing environments\u003c\/li\u003e\n \u003cli\u003eBalance performance checks during routine equipment qualification activities\u003c\/li\u003e\n \u003cli\u003eMulti-point calibration protocols at 500 g on precision analytical balances\u003c\/li\u003e\n \u003cli\u003eEducational and research institutions specifying ANSI\/ASTM Class 2 calibration standards\u003c\/li\u003e\n \u003cli\u003eGeneral laboratory balance verification where Class 2 tolerances are required by procedure\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 2 - 500g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 - 500g gives precision laboratories a cost-effective route to ANSI\/ASTM Class 2 compliance backed by polished stainless steel construction, individual serialisation, and a protective hard case. The 7.9 g\/cm³ steel density and smooth finish maintain accuracy and cleanliness across regular use, while the case-mounted serial number simplifies traceability record-keeping under ISO, GLP, and other quality systems. For laboratories that require reliable Class 2 mass standards at 500 g without the tighter specifications — and associated cost — of Class 0 or 1 weights, this unit offers a well-matched, practical solution.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880905941,"sku":"ASTM 2 - 500g","price":144.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_-_500g.jpg?v=1778277711"},{"product_id":"adam-equipment-astm-3-50g-accessory","title":"Adam Equipment ASTM 3 - 50g Calibration Weight, 50g Capacity, ASTM Class 3, Stainless Steel","description":"\u003ch2\u003eGeneral-Purpose ASTM Class 3 Calibration Weight — ASTM 3 - 50g (50 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 - 50g is an individual 50 g calibration weight manufactured to ANSI\/ASTM Class 3 tolerances, providing a general-purpose mass standard for routine balance and scale verification. Class 3 sits in the mid-to-lower range of the ASTM E617 hierarchy and is appropriate for precision balances used in production, quality assurance, and applied laboratory settings where reliable performance in day-to-day operation is the primary requirement. The polished stainless steel body and individual protective case make this weight practical for high-frequency calibration use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction conforming to ANSI\/ASTM Class 3 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density in accordance with ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly noted on the supplied case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for protection during storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 3 requirements for general-purpose balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Classes 0–4 and across multiple nominal values for broad application coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface finish facilitates routine inspection and cleaning between calibration events\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 3 specifications with a 7.9 g\/cm³ stainless steel construction, this 50 g weight is designed for regular, practical calibration use in production and quality environments. Class 3 tolerances are appropriate for precision balances that do not require the tighter specifications of Class 0 or 1, yet still demand a documented, traceable mass standard for their calibration records. The smooth surface finish is easy to clean and inspect, reducing the risk of measurement errors from surface contamination during high-frequency calibration cycles.\u003c\/p\u003e\n \u003cp\u003eEach Adam Equipment ASTM 3 weight comes with an individually labelled impact-resistant plastic case, with the unique serial number clearly recorded on the case exterior. This enables quick, reliable identification during calibration activities and supports the traceability documentation required by quality systems such as ISO 9001, GMP, and internal calibration SOPs. The hard case protects the weight from knocks and ambient contamination during storage between calibration intervals, maintaining its surface and mass stability across an extended operational period.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight range spans Classes 0 through 4 across a wide selection of nominal values, so the 50 g Class 3 weight fits naturally into calibration programmes that also require heavier or lighter mass references within the same class. Handling with clean forceps and storing in the supplied case between uses will preserve the weight's nominal mass and surface condition over time. The durable stainless steel construction ensures it retains its integrity through repeated use in high-frequency calibration environments.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine verification of precision balances in production and manufacturing facilities\u003c\/li\u003e\n \u003cli\u003eOngoing QC checks in food processing, chemical blending, and packaging environments\u003c\/li\u003e\n \u003cli\u003eBalance calibration for applied laboratory work where Class 3 tolerances are procedurally specified\u003c\/li\u003e\n \u003cli\u003eField calibration kits requiring a portable, durable mass standard at 50 g\u003c\/li\u003e\n \u003cli\u003eProduction line balance checks in regulated industries requiring traceable mass standards\u003c\/li\u003e\n \u003cli\u003eTechnical training and vocational programmes requiring ANSI\/ASTM certified calibration weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 - 50g?\u003c\/h3\u003e\n \u003cp\u003eFor operations requiring regular, documented balance verification without the overhead of tighter-class weights, the Adam Equipment ASTM 3 - 50g delivers a practical ANSI\/ASTM Class 3 solution. Its polished stainless steel body withstands frequent handling in production and laboratory environments, the protective case maintains the weight in service condition between calibration intervals, and the individual serial number keeps traceability records straightforward. This combination of compliance, durability, and practicality makes the ASTM 3 - 50g a reliable choice for any facility running systematic Class 3 balance verification at the 50 g level.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880938709,"sku":"ASTM 3 - 50g","price":106.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_50g.jpg?v=1778277717"},{"product_id":"adam-equipment-astm-4-2000g-accessory","title":"Adam Equipment ASTM 4 - 2000g Calibration Weight, 2000g Capacity, lb \/ kg Readability, ASTM Class 4, Stainless Steel","description":"\u003ch2\u003eANSI\/ASTM Class 4 Individual Calibration Weight Calibration Weight — ASTM 4 - 2000g (2 kg)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 2000g is an individual 2 kg calibration weight conforming to ANSI\/ASTM Class 4 tolerances — the entry-level classification in the ASTM E617 weight hierarchy. Suited to general industrial and commercial weighing verification, this weight provides a compliant mass standard for platform scales, bench scales, and general-purpose laboratory balances where Class 4 accuracy is the appropriate specification. Manufactured from polished stainless steel with a density of 7.9 g\/cm³, it delivers corrosion resistance and consistent performance through routine industrial use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body built to ANSI\/ASTM Class 4 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density conforming to ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number recorded on the supplied hard case\u003c\/li\u003e\n \u003cli\u003eImpact-resistant plastic case included for secure storage and on-site transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 4 requirements for general industrial and commercial scale verification\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM Classes 0–4 and multiple nominal values for complete calibration coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface resists corrosion and supports straightforward cleaning in industrial settings\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eManufactured to ANSI\/ASTM E617 Class 4 dimensional and tolerance specifications, this 2 kg stainless steel weight is built for practical, high-frequency use in industrial and commercial calibration settings. Class 4 tolerances are appropriate for verifying platform scales, counting scales, floor scales, and general-purpose balances that do not require the precision of the upper ASTM classes. The 7.9 g\/cm³ density and polished stainless steel surface resist corrosion from typical production and warehouse atmospheres, making this weight durable enough for demanding operational environments.\u003c\/p\u003e\n \u003cp\u003eAn individually labelled impact-resistant plastic case is included with each weight, the unique serial number clearly recorded on the case exterior. This enables basic traceability documentation for quality systems that reference ANSI\/ASTM class certification, without requiring the tighter tolerance controls of Class 0 through 2. The case makes storage between calibration intervals straightforward and protects the weight during movement within a production facility or between departments.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight series covers Classes 0 through 4 and a wide range of nominal values, making it straightforward to build a complete calibration kit from a single consistent product family. For facilities that perform frequent scale verification on the production floor or in shipping and receiving, the 2 kg Class 4 weight provides the ANSI\/ASTM-compliant mass reference needed to meet internal SOPs and external regulatory requirements. Routine surface cleaning and storage in the supplied case will keep the weight in serviceable condition across its operational life.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating and verifying industrial platform scales and floor scales\u003c\/li\u003e\n \u003cli\u003eRoutine bench and counter scale verification in shipping, receiving, and logistics operations\u003c\/li\u003e\n \u003cli\u003eProduction floor balance and scale checks in manufacturing and processing facilities\u003c\/li\u003e\n \u003cli\u003eVerification of commercial weighing equipment in food service, retail, and distribution\u003c\/li\u003e\n \u003cli\u003eGeneral QC scale checks where ANSI\/ASTM Class 4 documentation is required\u003c\/li\u003e\n \u003cli\u003eTechnical training programmes requiring a robust, entry-level ANSI\/ASTM calibration weight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 4 - 2000g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 2000g is a straightforward, compliant choice for any facility that needs a documented ANSI\/ASTM Class 4 mass standard for routine scale and balance maintenance at 2 kg. Its polished stainless steel construction provides adequate corrosion resistance and longevity for regular industrial handling, the individual serialisation keeps calibration records clear and auditable, and the protective hard case ensures the weight is ready for use whenever a calibration check is required. For operations where balance and scale compliance is a daily requirement, this weight delivers the reliability and certification needed without overspecifying the accuracy class.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765880971477,"sku":"ASTM 4 - 2000g","price":361.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_-_2000g.jpg?v=1778277734"},{"product_id":"adam-equipment-astm-3-2000g-accessory","title":"Adam Equipment ASTM 3 - 2000g Calibration Weight, 2000g Capacity, ASTM Class 3, Stainless Steel","description":"\u003ch2\u003eGeneral-Purpose ASTM Class 3 Calibration Weight — ASTM 3 - 2000g (2 kg)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 - 2000g is an individual 2 kg calibration weight manufactured to ANSI\/ASTM Class 3 tolerances, providing a general-purpose mass standard for routine balance and scale verification. Class 3 sits in the mid-to-lower range of the ASTM E617 hierarchy and is appropriate for precision balances used in production, quality assurance, and applied laboratory settings where reliable performance in day-to-day operation is the primary requirement. The polished stainless steel body and individual protective case make this weight practical for high-frequency calibration use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction conforming to ANSI\/ASTM Class 3 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density in accordance with ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly noted on the supplied case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for protection during storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 3 requirements for general-purpose balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Classes 0–4 and across multiple nominal values for broad application coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface finish facilitates routine inspection and cleaning between calibration events\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 3 specifications with a 7.9 g\/cm³ stainless steel construction, this 2 kg weight is designed for regular, practical calibration use in production and quality environments. Class 3 tolerances are appropriate for precision balances that do not require the tighter specifications of Class 0 or 1, yet still demand a documented, traceable mass standard for their calibration records. The smooth surface finish is easy to clean and inspect, reducing the risk of measurement errors from surface contamination during high-frequency calibration cycles.\u003c\/p\u003e\n \u003cp\u003eEach Adam Equipment ASTM 3 weight comes with an individually labelled impact-resistant plastic case, with the unique serial number clearly recorded on the case exterior. This enables quick, reliable identification during calibration activities and supports the traceability documentation required by quality systems such as ISO 9001, GMP, and internal calibration SOPs. The hard case protects the weight from knocks and ambient contamination during storage between calibration intervals, maintaining its surface and mass stability across an extended operational period.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight range spans Classes 0 through 4 across a wide selection of nominal values, so the 2 kg Class 3 weight fits naturally into calibration programmes that also require heavier or lighter mass references within the same class. Handling with clean forceps and storing in the supplied case between uses will preserve the weight's nominal mass and surface condition over time. The durable stainless steel construction ensures it retains its integrity through repeated use in high-frequency calibration environments.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine verification of precision balances in production and manufacturing facilities\u003c\/li\u003e\n \u003cli\u003eOngoing QC checks in food processing, chemical blending, and packaging environments\u003c\/li\u003e\n \u003cli\u003eBalance calibration for applied laboratory work where Class 3 tolerances are procedurally specified\u003c\/li\u003e\n \u003cli\u003eField calibration kits requiring a portable, durable mass standard at 2 kg\u003c\/li\u003e\n \u003cli\u003eProduction line balance checks in regulated industries requiring traceable mass standards\u003c\/li\u003e\n \u003cli\u003eTechnical training and vocational programmes requiring ANSI\/ASTM certified calibration weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 - 2000g?\u003c\/h3\u003e\n \u003cp\u003eFor operations requiring regular, documented balance verification without the overhead of tighter-class weights, the Adam Equipment ASTM 3 - 2000g delivers a practical ANSI\/ASTM Class 3 solution. Its polished stainless steel body withstands frequent handling in production and laboratory environments, the protective case maintains the weight in service condition between calibration intervals, and the individual serial number keeps traceability records straightforward. This combination of compliance, durability, and practicality makes the ASTM 3 - 2000g a reliable choice for any facility running systematic Class 3 balance verification at the 2 kg level.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881004245,"sku":"ASTM 3 - 2000g","price":378.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_2000g.jpg?v=1778277739"},{"product_id":"adam-equipment-astm-0-200g-accessory","title":"Adam Equipment ASTM 0 - 200g Calibration Weight, 200g Capacity, ASTM Class 0, Stainless Steel","description":"\u003ch2\u003eReference-Level ASTM Class 0 Calibration Weight — ASTM 0 - 200g (200 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 0 - 200g is an individual 200 g calibration weight conforming to ANSI\/ASTM Class 0 tolerances — the highest accuracy classification in the ASTM weight hierarchy. Designed to verify analytical balances as well as high-resolution precision instruments, it provides a traceable mass standard suitable for the most demanding laboratory calibration requirements. Its polished stainless steel body and protective hard case make it a durable, reliable reference for both routine and audit-level calibration tasks.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction engineered to ANSI\/ASTM Class 0 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.96 g\/cm³ steel density minimises air-buoyancy correction errors on high-resolution balances\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly recorded on the included case\u003c\/li\u003e\n \u003cli\u003eImpact-resistant hard plastic case protects the weight during storage and transport\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM Classes 0–4 and multiple weight values to meet varied calibration needs\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 requirements for Class 0 calibration weights\u003c\/li\u003e\n \u003cli\u003eSmooth surface finish simplifies inspection for contamination or handling marks\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eThe ASTM Class 0 designation represents the tightest set of tolerance limits defined by ANSI\/ASTM E617 for laboratory calibration weights. At 200 g, this weight is precision-machined and polished to meet those exacting specifications, making it appropriate for use with analytical balances that operate at sub-milligram readability, as well as precision balances serving reference or inter-laboratory roles. The 7.96 g\/cm³ steel density — shared with Class 1 — is chosen specifically to reduce the impact of air-buoyancy variation on measured mass values, a critical consideration in any high-precision measurement environment.\u003c\/p\u003e\n \u003cp\u003eEach weight is individually serialised, with the serial number legibly recorded on the exterior of the supplied impact-resistant plastic case. This makes it straightforward to maintain traceability records for ISO 17025, GLP, GMP, and other compliance frameworks that require documented calibration chains. The hard case prevents physical damage from knocks or drops during storage and bench-to-bench transfer, helping to preserve the dimensional integrity of the weight's critical surfaces over its service life.\u003c\/p\u003e\n \u003cp\u003eProper handling of Class 0 weights requires the use of clean forceps or lint-free gloves, as direct hand contact can deposit oils and particles that affect measured mass. The mirror-polished finish of this weight makes contamination easy to detect visually and straightforward to remove with appropriate cleaning procedures. Adam Equipment manufactures this weight series across Classes 0 through 4 and across a range of nominal values, allowing laboratories to select the appropriate class and size for each balance or application in their facility.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating and verifying analytical balances in pharmaceutical research and quality laboratories\u003c\/li\u003e\n \u003cli\u003eReference mass standards for metrology labs and calibration service providers\u003c\/li\u003e\n \u003cli\u003eBalance verification during regulatory inspections and third-party audits\u003c\/li\u003e\n \u003cli\u003eInter-laboratory mass comparisons where tightest tolerances are required\u003c\/li\u003e\n \u003cli\u003eCalibration of precision instruments used in chemical, forensic, and materials testing\u003c\/li\u003e\n \u003cli\u003eAccreditation-support documentation requiring ANSI\/ASTM Class 0 traceable weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 0 - 200g?\u003c\/h3\u003e\n \u003cp\u003eFor laboratories where measurement uncertainty must be held to the absolute minimum, the Adam Equipment ASTM 0 - 200g provides the ANSI\/ASTM Class 0 tolerances, traceable serialisation, and robust protective case that rigorous calibration programmes demand. The polished stainless steel body resists corrosion and maintains dimensional stability through thousands of handling cycles, while the 7.96 g\/cm³ density specification ensures that air-buoyancy effects remain within acceptable limits. Whether supporting routine analytical balance verification or serving as a reference standard in an accredited metrology laboratory, this weight delivers the precision and reliability expected of the ASTM Class 0 designation.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881037013,"sku":"ASTM 0 - 200g","price":450.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_0_-_200g.jpg?v=1778277745"},{"product_id":"adam-equipment-astm-3-5000g-accessory","title":"Adam Equipment ASTM 3 - 5000g Calibration Weight, 5000g Capacity, lb \/ kg Readability, ASTM Class 3, Stainless Steel","description":"\u003ch2\u003eGeneral-Purpose ASTM Class 3 Calibration Weight — ASTM 3 - 5000g (5 kg)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 - 5000g is an individual 5 kg calibration weight manufactured to ANSI\/ASTM Class 3 tolerances, providing a general-purpose mass standard for routine balance and scale verification. Class 3 sits in the mid-to-lower range of the ASTM E617 hierarchy and is appropriate for precision balances used in production, quality assurance, and applied laboratory settings where reliable performance in day-to-day operation is the primary requirement. The polished stainless steel body and individual protective case make this weight practical for high-frequency calibration use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction conforming to ANSI\/ASTM Class 3 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density in accordance with ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly noted on the supplied case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for protection during storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 3 requirements for general-purpose balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Classes 0–4 and across multiple nominal values for broad application coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface finish facilitates routine inspection and cleaning between calibration events\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 3 specifications with a 7.9 g\/cm³ stainless steel construction, this 5 kg weight is designed for regular, practical calibration use in production and quality environments. Class 3 tolerances are appropriate for precision balances that do not require the tighter specifications of Class 0 or 1, yet still demand a documented, traceable mass standard for their calibration records. The smooth surface finish is easy to clean and inspect, reducing the risk of measurement errors from surface contamination during high-frequency calibration cycles.\u003c\/p\u003e\n \u003cp\u003eEach Adam Equipment ASTM 3 weight comes with an individually labelled impact-resistant plastic case, with the unique serial number clearly recorded on the case exterior. This enables quick, reliable identification during calibration activities and supports the traceability documentation required by quality systems such as ISO 9001, GMP, and internal calibration SOPs. The hard case protects the weight from knocks and ambient contamination during storage between calibration intervals, maintaining its surface and mass stability across an extended operational period.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight range spans Classes 0 through 4 across a wide selection of nominal values, so the 5 kg Class 3 weight fits naturally into calibration programmes that also require heavier or lighter mass references within the same class. Handling with clean forceps and storing in the supplied case between uses will preserve the weight's nominal mass and surface condition over time. The durable stainless steel construction ensures it retains its integrity through repeated use in high-frequency calibration environments.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine verification of precision balances in production and manufacturing facilities\u003c\/li\u003e\n \u003cli\u003eOngoing QC checks in food processing, chemical blending, and packaging environments\u003c\/li\u003e\n \u003cli\u003eBalance calibration for applied laboratory work where Class 3 tolerances are procedurally specified\u003c\/li\u003e\n \u003cli\u003eField calibration kits requiring a portable, durable mass standard at 5 kg\u003c\/li\u003e\n \u003cli\u003eProduction line balance checks in regulated industries requiring traceable mass standards\u003c\/li\u003e\n \u003cli\u003eTechnical training and vocational programmes requiring ANSI\/ASTM certified calibration weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 - 5000g?\u003c\/h3\u003e\n \u003cp\u003eFor operations requiring regular, documented balance verification without the overhead of tighter-class weights, the Adam Equipment ASTM 3 - 5000g delivers a practical ANSI\/ASTM Class 3 solution. Its polished stainless steel body withstands frequent handling in production and laboratory environments, the protective case maintains the weight in service condition between calibration intervals, and the individual serial number keeps traceability records straightforward. This combination of compliance, durability, and practicality makes the ASTM 3 - 5000g a reliable choice for any facility running systematic Class 3 balance verification at the 5 kg level.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881069781,"sku":"ASTM 3 - 5000g","price":544.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_5000g.jpg?v=1778277760"},{"product_id":"adam-equipment-astm-3-100g-accessory","title":"Adam Equipment ASTM 3 - 100g Calibration Weight, 100g Capacity, ASTM Class 3, Stainless Steel","description":"\u003ch2\u003eGeneral-Purpose ASTM Class 3 Calibration Weight — ASTM 3 - 100g (100 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 - 100g is an individual 100 g calibration weight manufactured to ANSI\/ASTM Class 3 tolerances, providing a general-purpose mass standard for routine balance and scale verification. Class 3 sits in the mid-to-lower range of the ASTM E617 hierarchy and is appropriate for precision balances used in production, quality assurance, and applied laboratory settings where reliable performance in day-to-day operation is the primary requirement. The polished stainless steel body and individual protective case make this weight practical for high-frequency calibration use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction conforming to ANSI\/ASTM Class 3 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density in accordance with ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly noted on the supplied case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for protection during storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 3 requirements for general-purpose balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Classes 0–4 and across multiple nominal values for broad application coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface finish facilitates routine inspection and cleaning between calibration events\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 3 specifications with a 7.9 g\/cm³ stainless steel construction, this 100 g weight is designed for regular, practical calibration use in production and quality environments. Class 3 tolerances are appropriate for precision balances that do not require the tighter specifications of Class 0 or 1, yet still demand a documented, traceable mass standard for their calibration records. The smooth surface finish is easy to clean and inspect, reducing the risk of measurement errors from surface contamination during high-frequency calibration cycles.\u003c\/p\u003e\n \u003cp\u003eEach Adam Equipment ASTM 3 weight comes with an individually labelled impact-resistant plastic case, with the unique serial number clearly recorded on the case exterior. This enables quick, reliable identification during calibration activities and supports the traceability documentation required by quality systems such as ISO 9001, GMP, and internal calibration SOPs. The hard case protects the weight from knocks and ambient contamination during storage between calibration intervals, maintaining its surface and mass stability across an extended operational period.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight range spans Classes 0 through 4 across a wide selection of nominal values, so the 100 g Class 3 weight fits naturally into calibration programmes that also require heavier or lighter mass references within the same class. Handling with clean forceps and storing in the supplied case between uses will preserve the weight's nominal mass and surface condition over time. The durable stainless steel construction ensures it retains its integrity through repeated use in high-frequency calibration environments.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine verification of precision balances in production and manufacturing facilities\u003c\/li\u003e\n \u003cli\u003eOngoing QC checks in food processing, chemical blending, and packaging environments\u003c\/li\u003e\n \u003cli\u003eBalance calibration for applied laboratory work where Class 3 tolerances are procedurally specified\u003c\/li\u003e\n \u003cli\u003eField calibration kits requiring a portable, durable mass standard at 100 g\u003c\/li\u003e\n \u003cli\u003eProduction line balance checks in regulated industries requiring traceable mass standards\u003c\/li\u003e\n \u003cli\u003eTechnical training and vocational programmes requiring ANSI\/ASTM certified calibration weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 - 100g?\u003c\/h3\u003e\n \u003cp\u003eFor operations requiring regular, documented balance verification without the overhead of tighter-class weights, the Adam Equipment ASTM 3 - 100g delivers a practical ANSI\/ASTM Class 3 solution. Its polished stainless steel body withstands frequent handling in production and laboratory environments, the protective case maintains the weight in service condition between calibration intervals, and the individual serial number keeps traceability records straightforward. This combination of compliance, durability, and practicality makes the ASTM 3 - 100g a reliable choice for any facility running systematic Class 3 balance verification at the 100 g level.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881102549,"sku":"ASTM 3 - 100g","price":110.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_100g.jpg?v=1778277767"},{"product_id":"adam-equipment-astm-3-500g-accessory","title":"Adam Equipment ASTM 3 - 500g Calibration Weight, 500g Capacity, ASTM Class 3, Stainless Steel","description":"\u003ch2\u003eGeneral-Purpose ASTM Class 3 Calibration Weight — ASTM 3 - 500g (500 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 - 500g is an individual 500 g calibration weight manufactured to ANSI\/ASTM Class 3 tolerances, providing a general-purpose mass standard for routine balance and scale verification. Class 3 sits in the mid-to-lower range of the ASTM E617 hierarchy and is appropriate for precision balances used in production, quality assurance, and applied laboratory settings where reliable performance in day-to-day operation is the primary requirement. The polished stainless steel body and individual protective case make this weight practical for high-frequency calibration use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction conforming to ANSI\/ASTM Class 3 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density in accordance with ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly noted on the supplied case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for protection during storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 3 requirements for general-purpose balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Classes 0–4 and across multiple nominal values for broad application coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface finish facilitates routine inspection and cleaning between calibration events\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 3 specifications with a 7.9 g\/cm³ stainless steel construction, this 500 g weight is designed for regular, practical calibration use in production and quality environments. Class 3 tolerances are appropriate for precision balances that do not require the tighter specifications of Class 0 or 1, yet still demand a documented, traceable mass standard for their calibration records. The smooth surface finish is easy to clean and inspect, reducing the risk of measurement errors from surface contamination during high-frequency calibration cycles.\u003c\/p\u003e\n \u003cp\u003eEach Adam Equipment ASTM 3 weight comes with an individually labelled impact-resistant plastic case, with the unique serial number clearly recorded on the case exterior. This enables quick, reliable identification during calibration activities and supports the traceability documentation required by quality systems such as ISO 9001, GMP, and internal calibration SOPs. The hard case protects the weight from knocks and ambient contamination during storage between calibration intervals, maintaining its surface and mass stability across an extended operational period.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight range spans Classes 0 through 4 across a wide selection of nominal values, so the 500 g Class 3 weight fits naturally into calibration programmes that also require heavier or lighter mass references within the same class. Handling with clean forceps and storing in the supplied case between uses will preserve the weight's nominal mass and surface condition over time. The durable stainless steel construction ensures it retains its integrity through repeated use in high-frequency calibration environments.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine verification of precision balances in production and manufacturing facilities\u003c\/li\u003e\n \u003cli\u003eOngoing QC checks in food processing, chemical blending, and packaging environments\u003c\/li\u003e\n \u003cli\u003eBalance calibration for applied laboratory work where Class 3 tolerances are procedurally specified\u003c\/li\u003e\n \u003cli\u003eField calibration kits requiring a portable, durable mass standard at 500 g\u003c\/li\u003e\n \u003cli\u003eProduction line balance checks in regulated industries requiring traceable mass standards\u003c\/li\u003e\n \u003cli\u003eTechnical training and vocational programmes requiring ANSI\/ASTM certified calibration weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 - 500g?\u003c\/h3\u003e\n \u003cp\u003eFor operations requiring regular, documented balance verification without the overhead of tighter-class weights, the Adam Equipment ASTM 3 - 500g delivers a practical ANSI\/ASTM Class 3 solution. Its polished stainless steel body withstands frequent handling in production and laboratory environments, the protective case maintains the weight in service condition between calibration intervals, and the individual serial number keeps traceability records straightforward. This combination of compliance, durability, and practicality makes the ASTM 3 - 500g a reliable choice for any facility running systematic Class 3 balance verification at the 500 g level.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881135317,"sku":"ASTM 3 - 500g","price":136.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_500g.jpg?v=1778277774"},{"product_id":"adam-equipment-astm-4-10g-accessory","title":"Adam Equipment ASTM 4 - 10g Calibration Weight, 10g Capacity, ASTM Class 4, Stainless Steel","description":"\u003ch2\u003eANSI\/ASTM Class 4 Individual Calibration Weight Calibration Weight — ASTM 4 - 10g (10 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 10g is an individual 10 g calibration weight conforming to ANSI\/ASTM Class 4 tolerances — the entry-level classification in the ASTM E617 weight hierarchy. Suited to general industrial and commercial weighing verification, this weight provides a compliant mass standard for platform scales, bench scales, and general-purpose laboratory balances where Class 4 accuracy is the appropriate specification. Manufactured from polished stainless steel with a density of 7.9 g\/cm³, it delivers corrosion resistance and consistent performance through routine industrial use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel body built to ANSI\/ASTM Class 4 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density conforming to ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number recorded on the supplied hard case\u003c\/li\u003e\n \u003cli\u003eImpact-resistant plastic case included for secure storage and on-site transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 4 requirements for general industrial and commercial scale verification\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM Classes 0–4 and multiple nominal values for complete calibration coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface resists corrosion and supports straightforward cleaning in industrial settings\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eManufactured to ANSI\/ASTM E617 Class 4 dimensional and tolerance specifications, this 10 g stainless steel weight is built for practical, high-frequency use in industrial and commercial calibration settings. Class 4 tolerances are appropriate for verifying platform scales, counting scales, floor scales, and general-purpose balances that do not require the precision of the upper ASTM classes. The 7.9 g\/cm³ density and polished stainless steel surface resist corrosion from typical production and warehouse atmospheres, making this weight durable enough for demanding operational environments.\u003c\/p\u003e\n \u003cp\u003eAn individually labelled impact-resistant plastic case is included with each weight, the unique serial number clearly recorded on the case exterior. This enables basic traceability documentation for quality systems that reference ANSI\/ASTM class certification, without requiring the tighter tolerance controls of Class 0 through 2. The case makes storage between calibration intervals straightforward and protects the weight during movement within a production facility or between departments.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight series covers Classes 0 through 4 and a wide range of nominal values, making it straightforward to build a complete calibration kit from a single consistent product family. For facilities that perform frequent scale verification on the production floor or in shipping and receiving, the 10 g Class 4 weight provides the ANSI\/ASTM-compliant mass reference needed to meet internal SOPs and external regulatory requirements. Routine surface cleaning and storage in the supplied case will keep the weight in serviceable condition across its operational life.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibrating and verifying industrial platform scales and floor scales\u003c\/li\u003e\n \u003cli\u003eRoutine bench and counter scale verification in shipping, receiving, and logistics operations\u003c\/li\u003e\n \u003cli\u003eProduction floor balance and scale checks in manufacturing and processing facilities\u003c\/li\u003e\n \u003cli\u003eVerification of commercial weighing equipment in food service, retail, and distribution\u003c\/li\u003e\n \u003cli\u003eGeneral QC scale checks where ANSI\/ASTM Class 4 documentation is required\u003c\/li\u003e\n \u003cli\u003eTechnical training programmes requiring a robust, entry-level ANSI\/ASTM calibration weight\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 4 - 10g?\u003c\/h3\u003e\n \u003cp\u003eThe Adam Equipment ASTM 4 - 10g is a straightforward, compliant choice for any facility that needs a documented ANSI\/ASTM Class 4 mass standard for routine scale and balance maintenance at 10 g. Its polished stainless steel construction provides adequate corrosion resistance and longevity for regular industrial handling, the individual serialisation keeps calibration records clear and auditable, and the protective hard case ensures the weight is ready for use whenever a calibration check is required. For operations where balance and scale compliance is a daily requirement, this weight delivers the reliability and certification needed without overspecifying the accuracy class.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881168085,"sku":"ASTM 4 - 10g","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_4_-_10g.jpg?v=1778277790"},{"product_id":"adam-equipment-astm-3-200g-accessory","title":"Adam Equipment ASTM 3 - 200g Calibration Weight, 200g Capacity, ASTM Class 3, Stainless Steel","description":"\u003ch2\u003eGeneral-Purpose ASTM Class 3 Calibration Weight — ASTM 3 - 200g (200 g)\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 - 200g is an individual 200 g calibration weight manufactured to ANSI\/ASTM Class 3 tolerances, providing a general-purpose mass standard for routine balance and scale verification. Class 3 sits in the mid-to-lower range of the ASTM E617 hierarchy and is appropriate for precision balances used in production, quality assurance, and applied laboratory settings where reliable performance in day-to-day operation is the primary requirement. The polished stainless steel body and individual protective case make this weight practical for high-frequency calibration use.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003ePolished stainless steel construction conforming to ANSI\/ASTM Class 3 tolerance specifications\u003c\/li\u003e\n \u003cli\u003e7.9 g\/cm³ steel density in accordance with ASTM E617 Class 2–4 material requirements\u003c\/li\u003e\n \u003cli\u003eIndividually serialised weight with serial number clearly noted on the supplied case\u003c\/li\u003e\n \u003cli\u003eSupplied in an impact-resistant hard plastic case for protection during storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets ANSI\/ASTM E617 Class 3 requirements for general-purpose balance calibration\u003c\/li\u003e\n \u003cli\u003eAvailable in Classes 0–4 and across multiple nominal values for broad application coverage\u003c\/li\u003e\n \u003cli\u003ePolished surface finish facilitates routine inspection and cleaning between calibration events\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eBuilt to ANSI\/ASTM E617 Class 3 specifications with a 7.9 g\/cm³ stainless steel construction, this 200 g weight is designed for regular, practical calibration use in production and quality environments. Class 3 tolerances are appropriate for precision balances that do not require the tighter specifications of Class 0 or 1, yet still demand a documented, traceable mass standard for their calibration records. The smooth surface finish is easy to clean and inspect, reducing the risk of measurement errors from surface contamination during high-frequency calibration cycles.\u003c\/p\u003e\n \u003cp\u003eEach Adam Equipment ASTM 3 weight comes with an individually labelled impact-resistant plastic case, with the unique serial number clearly recorded on the case exterior. This enables quick, reliable identification during calibration activities and supports the traceability documentation required by quality systems such as ISO 9001, GMP, and internal calibration SOPs. The hard case protects the weight from knocks and ambient contamination during storage between calibration intervals, maintaining its surface and mass stability across an extended operational period.\u003c\/p\u003e\n \u003cp\u003eAdam Equipment's ASTM weight range spans Classes 0 through 4 across a wide selection of nominal values, so the 200 g Class 3 weight fits naturally into calibration programmes that also require heavier or lighter mass references within the same class. Handling with clean forceps and storing in the supplied case between uses will preserve the weight's nominal mass and surface condition over time. The durable stainless steel construction ensures it retains its integrity through repeated use in high-frequency calibration environments.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine verification of precision balances in production and manufacturing facilities\u003c\/li\u003e\n \u003cli\u003eOngoing QC checks in food processing, chemical blending, and packaging environments\u003c\/li\u003e\n \u003cli\u003eBalance calibration for applied laboratory work where Class 3 tolerances are procedurally specified\u003c\/li\u003e\n \u003cli\u003eField calibration kits requiring a portable, durable mass standard at 200 g\u003c\/li\u003e\n \u003cli\u003eProduction line balance checks in regulated industries requiring traceable mass standards\u003c\/li\u003e\n \u003cli\u003eTechnical training and vocational programmes requiring ANSI\/ASTM certified calibration weights\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 - 200g?\u003c\/h3\u003e\n \u003cp\u003eFor operations requiring regular, documented balance verification without the overhead of tighter-class weights, the Adam Equipment ASTM 3 - 200g delivers a practical ANSI\/ASTM Class 3 solution. Its polished stainless steel body withstands frequent handling in production and laboratory environments, the protective case maintains the weight in service condition between calibration intervals, and the individual serial number keeps traceability records straightforward. This combination of compliance, durability, and practicality makes the ASTM 3 - 200g a reliable choice for any facility running systematic Class 3 balance verification at the 200 g level.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881233621,"sku":"ASTM 3 - 200g","price":114.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_200g.jpg?v=1778277795"},{"product_id":"adam-equipment-astm-3-1g-accessory","title":"Adam Equipment ASTM 3 - 1g Stainless Steel Calibration Weight, 1g, ASTM Class 3","description":"\u003ch2\u003eAdam Equipment ASTM 3 – 1g Stainless Steel Calibration Weight, ASTM Class 3\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 – 1g individual calibration weight delivers reliable, traceable accuracy for testing and calibrating precision balances. Manufactured from polished stainless steel and conforming to ANSI\/ASTM E617 Class 3 tolerances, this 1 g weight is a dependable reference mass for laboratory and industrial environments where consistent measurement results matter. It is sold individually, allowing users to acquire exactly the denomination they need.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePolished stainless steel\u003c\/strong\u003e construction provides lasting durability and resistance to surface corrosion\u003c\/li\u003e\n \u003cli\u003eSupplied in an \u003cstrong\u003eimpact-resistant plastic case\u003c\/strong\u003e that protects the weight during storage and transport\u003c\/li\u003e\n \u003cli\u003eMeets \u003cstrong\u003eANSI\/ASTM E617 Class 3\u003c\/strong\u003e requirements for general-purpose precision calibration\u003c\/li\u003e\n \u003cli\u003eASTM 2–4 weights feature a \u003cstrong\u003e7.9 g\/cm³ density\u003c\/strong\u003e, consistent with the standard stainless alloy specification\u003c\/li\u003e\n \u003cli\u003eSerial number clearly recorded on the case for full calibration traceability\u003c\/li\u003e\n \u003cli\u003eAvailable across ASTM classes 0 through 4 to match a wide range of balance accuracy requirements\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eAt 1 g, this ASTM Class 3 weight occupies the lighter end of the gram-denomination range and is particularly well-suited for calibrating balances with milligram-level readability. ASTM Class 3 sits in the mid-range of the ASTM hierarchy — it offers reliable calibration for most general-purpose precision balances while remaining below the tighter tolerances required by Classes 0, 1, and 2 for more demanding analytical applications. The polished stainless steel surface minimises surface contamination and simplifies cleaning between calibration cycles, helping to maintain accurate mass values over extended periods of use.\u003c\/p\u003e\n \u003cp\u003eEach weight is sold individually, allowing laboratories and calibration teams to build a custom set that precisely matches their programme requirements without purchasing denominations they do not need. The included plastic case ensures the weight is protected from surface damage and environmental exposure between use, and the recorded serial number keeps traceability documentation straightforward and organised.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eRoutine calibration and verification of laboratory precision balances\u003c\/li\u003e\n \u003cli\u003eQuality control checks in pharmaceutical and chemical research environments\u003c\/li\u003e\n \u003cli\u003eCalibration of balances used in educational and teaching laboratories\u003c\/li\u003e\n \u003cli\u003eReference mass for testing scales in light manufacturing and production settings\u003c\/li\u003e\n \u003cli\u003eCompliance verification against ANSI\/ASTM E617 Class 3 standards\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 – 1g?\u003c\/h3\u003e\n \u003cp\u003eAdam Equipment has built a strong reputation for producing traceable, reliable calibration weights that support accurate measurement across a wide range of industries. The ASTM 3 – 1g weight combines ANSI\/ASTM-compliant accuracy with the practical convenience of individual purchase and a protective carrying case. It is a cost-effective solution for facilities that need a dependable 1 g reference mass without committing to a complete weight set. The recorded serial number further simplifies compliance with quality management systems that require documented calibration traceability.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881266389,"sku":"ASTM 3 - 1g","price":80.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_1g.jpg?v=1778277802"},{"product_id":"adam-equipment-astm-3-2g-accessory","title":"Adam Equipment ASTM 3 - 2g Stainless Steel Calibration Weight, 2g, ASTM Class 3","description":"\u003ch2\u003eAdam Equipment ASTM 3 – 2g Stainless Steel Calibration Weight, ASTM Class 3\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 3 – 2g individual calibration weight provides a precise 2 g reference mass for routine balance verification and calibration. Crafted from polished stainless steel and manufactured to ANSI\/ASTM E617 Class 3 specifications, this weight is suited to laboratories and facilities that require a reliable, single-denomination reference for general-purpose precision balance maintenance. It is purchased individually, offering targeted calibration without the cost of a full weight set.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePolished stainless steel\u003c\/strong\u003e body ensures corrosion resistance and a long service life in demanding environments\u003c\/li\u003e\n \u003cli\u003eDelivered in an \u003cstrong\u003eimpact-resistant plastic case\u003c\/strong\u003e for safe, organised storage and transport\u003c\/li\u003e\n \u003cli\u003eConforms to \u003cstrong\u003eANSI\/ASTM E617 Class 3\u003c\/strong\u003e tolerances for precision balance calibration\u003c\/li\u003e\n \u003cli\u003eDensity of \u003cstrong\u003e7.9 g\/cm³\u003c\/strong\u003e, consistent with the ASTM Class 2–4 stainless steel alloy specification\u003c\/li\u003e\n \u003cli\u003eSerial number recorded on the case for straightforward traceability documentation\u003c\/li\u003e\n \u003cli\u003eCombines freely with other ASTM denominations to form a customised calibration set\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eThe 2 g denomination is a practical complement to 1 g and 5 g weights in laboratory calibration programmes, filling a denomination gap that is commonly required when performing multi-point balance verification. At ASTM Class 3, this weight is appropriate for calibrating precision balances used in general scientific, industrial, and educational settings where high-accuracy Class 0 or 1 tolerances are not required. The polished stainless surface resists fingerprint oils and environmental contaminants, and is easily wiped clean with a soft lint-free cloth to maintain mass integrity between uses.\u003c\/p\u003e\n \u003cp\u003eBecause the weight is sold individually, it can be purchased to replace a worn or missing piece in an existing set, or to extend a growing calibration toolkit. The protective plastic case maintains the surface finish of the weight between uses, helping to extend its functional service life and preserve accurate mass values over repeated calibration cycles. The case also carries the weight's serial number, supporting organised record-keeping in quality management systems.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eVerification of precision balances in laboratory and industrial testing facilities\u003c\/li\u003e\n \u003cli\u003eQuality assurance in pharmaceutical, chemical, and food manufacturing environments\u003c\/li\u003e\n \u003cli\u003eBalance calibration tasks in academic research and teaching settings\u003c\/li\u003e\n \u003cli\u003eIndustrial applications requiring traceable ASTM Class 3 reference masses\u003c\/li\u003e\n \u003cli\u003eSupplementing existing weight sets where a 2 g denomination is specifically needed\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 3 – 2g?\u003c\/h3\u003e\n \u003cp\u003eAdam Equipment's individual ASTM weights are manufactured to consistent tolerances, making them dependable additions to any calibration programme. The ASTM 3 – 2g is a straightforward, cost-effective way to maintain a verified 2 g reference without the expense of purchasing a complete weight set. The protective case and traceable serial number add practical value in environments where calibration records must be properly maintained. Backed by Adam Equipment's quality assurance, this weight provides the accuracy and durability that calibration professionals expect.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881299157,"sku":"ASTM 3 - 2g","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_3_-_2g.jpg?v=1778277808"},{"product_id":"adam-equipment-astm-2-2000g-accessory","title":"Adam Equipment ASTM 2 - 2000g Stainless Steel Calibration Weight, 2000g, ASTM Class 2","description":"\u003ch2\u003eAdam Equipment ASTM 2 – 2000g Stainless Steel Calibration Weight, ASTM Class 2\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 2 – 2000g calibration weight provides a traceable 2 kg reference mass at the elevated accuracy of ASTM Class 2. Constructed from polished stainless steel and tested against ANSI\/ASTM E617 specifications, this individual weight serves precision balances in demanding laboratory and industrial calibration programmes. The Class 2 tolerance level makes it appropriate for precision applications where tighter accuracy than general-purpose Class 3 or 4 weights is required.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eASTM Class 2 accuracy\u003c\/strong\u003e — tighter tolerances than Classes 3 and 4, suitable for precision balance verification\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePolished stainless steel\u003c\/strong\u003e construction for a superior surface finish and excellent corrosion resistance\u003c\/li\u003e\n \u003cli\u003eSupplied in an \u003cstrong\u003eimpact-resistant plastic case\u003c\/strong\u003e to protect the weight's surface integrity during storage\u003c\/li\u003e\n \u003cli\u003eComplies with \u003cstrong\u003eANSI\/ASTM E617\u003c\/strong\u003e requirements across the full ASTM weight class range\u003c\/li\u003e\n \u003cli\u003eStainless alloy density of \u003cstrong\u003e7.9 g\/cm³\u003c\/strong\u003e, in line with ASTM Class 2–4 specifications\u003c\/li\u003e\n \u003cli\u003eSerial number on the case supports traceable calibration records and documentation\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eAt 2000 g, this weight represents one of the heavier denominations in the ASTM stainless range and is well-suited to calibrating precision balances with capacities in the kilogram range. ASTM Class 2 occupies an important position in the accuracy hierarchy — offering tighter tolerances than Class 3 while remaining practical for a wide range of precision balance applications. The polished surface minimises the risk of mass variation caused by surface contamination and simplifies maintenance between calibration cycles.\u003c\/p\u003e\n \u003cp\u003ePurchased individually, this weight integrates seamlessly into existing calibration sets or functions as a standalone reference for periodic balance checks. The hard plastic case provides both protective storage and a location to record the weight's serial number, keeping calibration documentation organised and accessible. For facilities operating in regulated environments, the individual serial number is particularly valuable when maintaining calibration records.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibration and verification of precision balances with multi-kilogram capacity\u003c\/li\u003e\n \u003cli\u003eReference mass for quality control in pharmaceutical manufacturing and R\u0026amp;D laboratories\u003c\/li\u003e\n \u003cli\u003eIndustrial metrology and compliance testing requiring ASTM Class 2 traceability\u003c\/li\u003e\n \u003cli\u003eTesting precision balances in analytical, academic, and environmental laboratories\u003c\/li\u003e\n \u003cli\u003eSupplementing a weight set where a 2 kg denomination is required at Class 2 accuracy\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 2 – 2000g?\u003c\/h3\u003e\n \u003cp\u003eAdam Equipment's ASTM weights are produced with consistent quality, giving laboratories and industrial users confidence in every calibration routine. The ASTM 2 – 2000g combines the enhanced accuracy of Class 2 with the practicality of individual purchase, making it straightforward to address specific calibration needs without investing in a complete weight set. Its protective case and traceable serial number make it a responsible choice for regulated environments where calibration documentation is a formal requirement.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881331925,"sku":"ASTM 2 - 2000g","price":408.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_2_-_2000g.jpg?v=1778277823"},{"product_id":"adam-equipment-astm-1-500g-accessory","title":"Adam Equipment ASTM 1 - 500g Stainless Steel Calibration Weight, 500g, ASTM Class 1","description":"\u003ch2\u003eAdam Equipment ASTM 1 – 500g Stainless Steel Calibration Weight, ASTM Class 1\u003c\/h2\u003e\n \u003cp\u003eThe Adam Equipment ASTM 1 – 500g calibration weight delivers high-accuracy mass reference at ASTM Class 1 tolerances. Machined from polished stainless steel and certified to ANSI\/ASTM E617 standards, this 500 g individual weight is engineered for precision balance calibration in analytical, pharmaceutical, and research-grade applications where accuracy requirements go beyond what general-purpose Class 3 or 4 weights provide.\u003c\/p\u003e\n \u003ch3\u003eKey Features\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eASTM Class 1 precision\u003c\/strong\u003e — among the tightest ASTM tolerances, suitable for high-accuracy precision balances\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePolished stainless steel\u003c\/strong\u003e body with a \u003cstrong\u003e7.96 g\/cm³ density\u003c\/strong\u003e, meeting the more stringent ASTM 0–1 alloy specification\u003c\/li\u003e\n \u003cli\u003eHoused in an \u003cstrong\u003eimpact-resistant plastic case\u003c\/strong\u003e with a recorded serial number for traceability\u003c\/li\u003e\n \u003cli\u003eMeets \u003cstrong\u003eANSI\/ASTM E617 Class 1\u003c\/strong\u003e specifications across the full stainless weight range\u003c\/li\u003e\n \u003cli\u003eAvailable as an individual weight for targeted calibration without purchasing a full set\u003c\/li\u003e\n \u003cli\u003ePolished surface finish reduces contamination risk, supporting longer calibration intervals\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n \u003cp\u003eASTM Class 1 occupies the second-highest accuracy tier in the ASTM hierarchy, just below Class 0. At 500 g, this weight is appropriate for calibrating precision balances across a broad capacity range, from analytical instruments through to high-capacity precision models. The 7.96 g\/cm³ stainless steel density specified for ASTM Classes 0 and 1 is more tightly controlled than the 7.9 g\/cm³ used in Classes 2–4, reflecting the elevated accuracy requirements at this level. This distinction in alloy density is an important aspect of achieving and maintaining Class 1 mass tolerances.\u003c\/p\u003e\n \u003cp\u003eThe polished surface and protective case help maintain the weight's calibrated mass over time. By purchasing individual weights, laboratories can select precisely the denominations required by their calibration procedures rather than acquiring an entire set — a practical benefit for facilities with specific, well-defined calibration protocols. The case also carries the serial number required for traceability documentation in quality management programmes such as ISO 17025.\u003c\/p\u003e\n \u003ch3\u003eApplications\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eCalibration of analytical and semi-micro balances in pharmaceutical and research laboratories\u003c\/li\u003e\n \u003cli\u003ePrecision balance verification for food, chemical, and environmental testing\u003c\/li\u003e\n \u003cli\u003eReference mass for accredited laboratory calibration programmes\u003c\/li\u003e\n \u003cli\u003eRegulatory compliance testing requiring ASTM Class 1 traceability\u003c\/li\u003e\n \u003cli\u003eReplacement or supplementary weight for existing Class 1 calibration sets\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003eWhy Choose the Adam Equipment ASTM 1 – 500g?\u003c\/h3\u003e\n \u003cp\u003eFor applications that demand ASTM Class 1 accuracy at the 500 g denomination, Adam Equipment's individual stainless weight is a well-made, traceable choice. The inclusion of a protective case and documented serial number simplifies compliance with quality management systems. Adam Equipment's established presence in precision weighing ensures this weight is manufactured to the exacting standards that analytical laboratories and regulated industries depend on for consistent, defensible calibration results.\u003c\/p\u003e","brand":"Adam Equipment","offers":[{"title":"Default Title","offer_id":53765881364693,"sku":"ASTM 1 - 500g","price":165.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/astm_1_-_500g.jpg?v=1778277828"}],"url":"https:\/\/weighcore.com\/collections\/weights.oembed?page=3","provider":"Weighcore","version":"1.0","type":"link"}