{"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","url":"https:\/\/weighcore.com\/products\/adam-equipment-astm-1-1g-500g-calibration-weight-set","provider":"Weighcore","version":"1.0","type":"link"}