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    5 Products

    Precision Test Weights with Calibration Certificate

    Image of Product. Front orientation. Test Weights. Precision Test Weights with Calibration Certificate, Calibration Weight Class 1.
    Image of Product. Bottom orientation. Test Weights. Precision Test Weights with Calibration Certificate, Calibration Weight Class 4.

    Calibration

    Weight Class

    1

    Calibration

    Weight Class 4

    Often used to calibrate precision scales, these highly accurate test weights come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy. They are marked with their weight.
    Calibration Weight Class 1—Class 1 weights are highly accurate and used as a reference standard for calibrating other calibration weights. They are also good for calibration of microbalances and analytical balances.
    Calibration Weight Class 4—Class 4 weights are good for calibrating precision balances, laboratory balances, and digital scales.
    Wt.,
    g
    Wt. Tolerance, g
    Dia.
    Ht.
    Material
    Specs. Met
    Includes
    Certificate Type
    Each
    Calibration Weight Class 1
    400-0.000975 to 0.0009751 1/2"1 7/8"Stainless Steel
    		ASTM E617 Class 1Glove
    Plastic case    		Calibration Certificate Traceable to NIST17605T280000000
     
    Calibration Weight Class 4
    400-0.008 to 0.0081 7/16"1 15/16"Stainless Steel
    		ASTM E617 Class 4Glove
    Plastic case    		Calibration Certificate Traceable to NIST17605T108000000
     

    Legal-for-Trade Test Weights with Calibration Certificate

    Image of Product. Front orientation. Test Weights. Legal-for-Trade Test Weights with Calibration Certificate.
    To ensure accurate calibration of legal-for-trade scales, these test weights come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy. They are marked with their weight.
    Wt.,
    g
    Wt. Tolerance,
    g
    Dia.
    Ht.
    Material
    Calibration
    Wt. Class
    Specs. Met
    Certificate Type
    Each
    400-0.07 to 0.071 1/2"1 7/8"Stainless Steel
    		5ASTM E617 Class 5Calibration Certificate Traceable to NIST1908T930000000

    Precision Test Weights

    Image of Product. 30 g to 500 g. Front orientation. Test Weights. Precision Test Weights.
    Image of Product. 1,000 g to 5 kg. Front orientation. Test Weights. Precision Test Weights.

    30 g to

    500 g

    1,000 g to 5

    kg

    Our most accurate test weights, these are often used to calibrate precision scales. They are marked with their weight.
    Wt.,
    g
    Wt. Tolerance, g
    Dia.
    Ht.
    Material
    Calibration
    Wt. Class
    Specs. Met
    Includes
    Each
    400-0.000975 to 0.0009751 1/2"1 7/8"Stainless Steel
    		1ASTM E617 Class 1Glove
    Plastic case    		17605T380000000

    Legal-for-Trade Test Weights

    Image of Product. Front orientation. Test Weights. Legal-for-Trade Test Weights.
    Accepted by weights and measures authorities, these test weights calibrate legal-for-trade scales used in regulated commercial transactions. They meet ASTM E617 Class 5 accuracy standards. Made of stainless steel, they resist corrosion to maintain accuracy over time. Each weight is marked for easy identification during audits and traceability documentation.
    Wt.,
    g
    Wt. Tolerance,
    g
    Dia.
    Ht.
    Material
    Calibration
    Wt. Class
    Specs. Met
    Each
    400-0.07 to 0.071 1/2"1 7/8"Stainless Steel
    		5ASTM E617 Class 51908T53000000
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