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Calibration Weights. Accurate and stable reference standards for calibrating weighing equipment, including variously certified/accredited weights and weight sets from different classes. Products may be constructed of aluminum, stainless steel, brass, iron, and other alloys.
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Accurate metrological weights and weight sets with nominal mass values from 1 mg to 1,000 kg. Choose between wire weights and knob weights, as well as leaf weights, cylindrical weights and block shaped weights.
Calibration Weights. Reference Weights, Mass Standards, Balance Calibration Weights, and Scale Weights & Test Weights adjusted to meet or exceed the tolerances for Troemner UltraClass, Class E0, Class 0, ASTM Class 1 to Class 7, OIML Class E1 to Class F2, and NIST Class F (replaced by ASTM Class 6).
Manufactured to international standards (ASTM and OIML), Ohaus loose calibrations weights and calibration mass sets are available in a variety of styles for a wide range of uses. In addition to the conventional shapes, Ohaus also offers hooked and slotted masses for use in physics.
The OIML standard for mass standards provides guidelines and specifications for the design, manufacture, calibration, and use of calibration weights and other mass standards used in trade, industry, and scientific applications.
Find large hanging weights and precision mass sets with accuracy to 0.01 gram. Get scale calibration weights in three different sizes. Also consider a demonstration balance, available with or without a weight set.
The weight portfolio covers scale weights according to OIML or ASTM from fifty micrograms to five tons in all accuracy classes. Our test weights are used all over the world, not only for testing balances but also as primary standards in mass laboratories.
