500 mg - 1 mg Calibration Weight, ASTM Class 4

Key Highlights Designed to meet ASTM E617-13 specifications for Class 4 tolerances. Supplied as a single weight or as a set within the specified mass range. Constructed from high-quality stainless steel with a polished finish. Each weight features its nominal mass value for clear identification. Traceability supported by unique serial numbers applied to the storage case. Manufactured to a density of 7.95 g/cm³. Protective storage case is sold separately. This calibration weight set serves as a fundamental tool for quality control and metrology professionals, providing a traceable mass standard for the critical low-end range of precision scales. Manufactured in strict compliance with ASTM E617-13, these weights are indispensable for performing daily checks, routine calibrations, and performance verification on analytical balances, micro-balances, and other sensitive weighing instruments used in laboratories, manufacturing, and pharmaceutical environments. The weights are