Adam Equipment ASTM 1 - 100g Calibration Weight, 100g Capacity, ASTM Class 1, Stainless Steel

Adam Equipment ASTM 1 Individual Calibration Weight, 100 g High-Accuracy Stainless Steel

The 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.

Key Features

• 100 g nominal value for calibrating analytical and high-resolution precision balances
• ASTM Class 1 tolerance — significantly tighter than Class 2 at the same denomination
• 7.96 g/cm³ density per ASTM Class 0-1 specification, reflecting tighter material requirements
• Polished stainless steel surface with a higher finish standard than Class 2-4 weights
• Individual impact-resistant plastic case for protected handling, storage, and transport
• Serial number on case supports calibration traceability in regulated environments

Detailed Overview

While 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.

This 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.

Applications

• Analytical balance calibration in pharmaceutical research and quality control laboratories
• ISO 17025-accredited calibration services requiring ASTM Class 1 reference weights
• High-resolution sensitivity and linearity testing of analytical instruments
• Regulated laboratory environments operating under GLP or GMP documentation requirements

Why Choose the Adam Equipment ASTM 1 - 100g?

When 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.