Adam Equipment ASTM 1 - 500g Stainless Steel Calibration Weight, 500g, ASTM Class 1

Adam Equipment ASTM 1 – 500g Stainless Steel Calibration Weight, ASTM Class 1

The Adam Equipment ASTM 1 – 500g calibration weight delivers high-accuracy mass reference at ASTM Class 1 tolerances. Machined from polished stainless steel and certified to ANSI/ASTM E617 standards, this 500 g individual weight is engineered for precision balance calibration in analytical, pharmaceutical, and research-grade applications where accuracy requirements go beyond what general-purpose Class 3 or 4 weights provide.

Key Features

• ASTM Class 1 precision — among the tightest ASTM tolerances, suitable for high-accuracy precision balances
• Polished stainless steel body with a 7.96 g/cm³ density, meeting the more stringent ASTM 0–1 alloy specification
• Housed in an impact-resistant plastic case with a recorded serial number for traceability
• Meets ANSI/ASTM E617 Class 1 specifications across the full stainless weight range
• Available as an individual weight for targeted calibration without purchasing a full set
• Polished surface finish reduces contamination risk, supporting longer calibration intervals

Detailed Overview

ASTM Class 1 occupies the second-highest accuracy tier in the ASTM hierarchy, just below Class 0. At 500 g, this weight is appropriate for calibrating precision balances across a broad capacity range, from analytical instruments through to high-capacity precision models. The 7.96 g/cm³ stainless steel density specified for ASTM Classes 0 and 1 is more tightly controlled than the 7.9 g/cm³ used in Classes 2–4, reflecting the elevated accuracy requirements at this level. This distinction in alloy density is an important aspect of achieving and maintaining Class 1 mass tolerances.

The polished surface and protective case help maintain the weight's calibrated mass over time. By purchasing individual weights, laboratories can select precisely the denominations required by their calibration procedures rather than acquiring an entire set — a practical benefit for facilities with specific, well-defined calibration protocols. The case also carries the serial number required for traceability documentation in quality management programmes such as ISO 17025.

Applications

• Calibration of analytical and semi-micro balances in pharmaceutical and research laboratories
• Precision balance verification for food, chemical, and environmental testing
• Reference mass for accredited laboratory calibration programmes
• Regulatory compliance testing requiring ASTM Class 1 traceability
• Replacement or supplementary weight for existing Class 1 calibration sets

Why Choose the Adam Equipment ASTM 1 – 500g?

For applications that demand ASTM Class 1 accuracy at the 500 g denomination, Adam Equipment's individual stainless weight is a well-made, traceable choice. The inclusion of a protective case and documented serial number simplifies compliance with quality management systems. Adam Equipment's established presence in precision weighing ensures this weight is manufactured to the exacting standards that analytical laboratories and regulated industries depend on for consistent, defensible calibration results.