Adam Equipment ASTM 2 - 1g Calibration Weight, 1g Capacity, ASTM Class 2, Stainless Steel

Adam Equipment ASTM 2 Individual Calibration Weight, 1 g Stainless Steel Precision Reference

The 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.

Key Features

• 1 g nominal value for small-range precision balance calibration and low-end linearity verification
• ASTM Class 2 conformance meeting the ANSI/ASTM tolerance requirements for this class
• 7.9 g/cm³ density as specified for ASTM Class 2-4 weights
• Polished stainless steel body for corrosion resistance and stable mass over repeated calibration use
• Individual impact-resistant plastic case for protected handling and long-term storage
• Serial number recorded on case to support calibration traceability requirements

Detailed Overview

The 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.

At 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.

Applications

• Low-range span calibration and sensitivity verification of precision and semi-analytical balances
• Small-denomination linearity checks across the lower portion of a balance's capacity range
• Pharmaceutical and food production quality control calibration programmes at Class 2 requirements
• General laboratory balance maintenance and routine calibration interval verification

Why Choose the Adam Equipment ASTM 2 - 1g?

The 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.