Adam Equipment ASTM 1 1g - 500g Calibration Weight Set, 1g-500g Range, ASTM Class 1

Adam Equipment ASTM Class 1 Calibration Weight Set — 1g to 500g for Analytical Balance Verification

The 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.

Key Features

• ASTM Class 1 tolerance — one of the highest precision levels in the ANSI/ASTM E617 classification system
• 1g to 500g range covers the common calibration span for analytical and precision laboratory balances
• Highly polished stainless steel at 7.96 g/cm³ minimizes air resistance deviation and resists surface oxidation
• Meets ANSI/ASTM E617 national weight standards for traceable calibration programs
• White cotton gloves included to prevent oil and particulate contamination during handling
• Individual weight denominations covering the full 1g to 500g range for comprehensive balance verification
• Rugged stainless steel construction maintains mass values through years of regular calibration use

Detailed Overview

ASTM 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.

The 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.

Applications

• Calibration and routine verification of analytical laboratory balances
• Pharmaceutical weighing equipment qualification under GMP requirements
• Research and academic laboratory balance performance maintenance
• Quality control in precision manufacturing where sub-milligram accuracy is required
• Metrology and standards laboratory reference calibration work

Why Choose the Adam Equipment ASTM Class 1 1g–500g Set?

This 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.