OHAUS® ASTM Reference Calibration Weight Set, 500 g - 1 g

This calibration weight set serves as a primary reference for calibrating other mass standards and ensuring traceability between national mass standards and ASTM Class 1 weights and lower. It is suitable for calibrating high-precision balances with a readability as low as 0.01 mg. Weights ranging from 50 kg to 1 g are cylindrical and come with a handling knob, while weights of 500 mg and below are flat with one end turned up for easy handling.