ASTM Reference Calibration Weight Sets ASTM 30kg-1mg UC No Cert TR.

Applications

Use as a primary reference for calibrating other mass standards and use for traceability between national mass standards and ASTM Class 1 weights and lower. This class is appropriate for calibrating high-precision balances with readability as low as 0.01 mg.

Construction

1 g and above - two-piece 500 mg and below - one-piece

Design Features

Weights 50 kg through 1 g are cylindrical with handling knob. Weights 500 mg and below are flat with one end turned up for easy handling.