Individual scale calibration weights adjusted to meet or exceed ASTM Class 5 to 7 tolerances. ASTM Class 6 sets offer high accuracy with tight tolerances and uncertainties of less than ¹/₄ of the tolerance. Weight surfaces meet or exceed ASTM Class 6 tolerance and design restrictions.

Scale calibration weight sets are manufactured from durable 303 stainless steel and are provided in a durable protective case to ensure weights are held securely, kept clean, and dust free.

Available with certificate options traceable to NIST, including ISO/IEC 17025 accredited certification or traceable certification to aid in meeting SOP and regulatory requirements.

Construction: 5 to 0.001 lbs. are two-piece; 0.25 to 0.001 are one-piece
Density at 20 °C: 7.85 g/cm³
Width: 20.955 cm
Length: 9.843 cm
Height: 12.065 cm