Adam Equipment ASTM 3 - 1000g Calibration Weight, 1000g Capacity, ASTM Class 3, Stainless Steel

Adam Equipment ASTM 3 Individual Calibration Weight, 1 kg Stainless Steel

The 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.

Key Features

• 1000 g (1 kg) nominal value for calibrating precision and platform balances in the mid-to-high capacity range
• ASTM Class 3 conformance meeting ANSI/ASTM tolerance specifications for this class
• 7.9 g/cm³ density as specified for ASTM Class 2-4 weights
• Polished stainless steel construction for durability and resistance to corrosion over long service life
• Supplied in an individual impact-resistant plastic case for protection during storage and transit
• Serial number on case enables straightforward identification within a calibration weight collection

Detailed Overview

ASTM 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.

The 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.

Applications

• Span calibration of precision balances in general laboratory environments
• Commercial weighing device compliance testing and verification
• Industrial quality control balance performance verification
• Educational laboratory calibration and measurement uncertainty exercises

Why Choose the Adam Equipment ASTM 3 - 1000g?

The 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.