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  • Calibration Weights

    Laboratory balances, from economy to expensive analytical models, require routine calibration and accuracy confirmation. Accuris™ offers a selection of individual weights and sets that meet the standards for a variety of balance types.


    We offer a variety of Class E2, F1, and M1 class weights, individually and in sets.  All individual weights are supplied in protective, screw capped plastic containers, and weight sets are supplied in protective carrying cases.

    Class F1 Weight Set, W1100-200

    Precision, compact, and portable balances (readability 0.1 to 0.001g) can be calibrated with our Basic Class F1 Calibration Set. Included in the set are 23 stainless steel cylindrical and leaf weights:  2 x 200g, 1 x 100g, 1 x 50g, 2 x 20g, 1 x 10g, 1 x 5g, 2 x 2g, 1 x 1g, 1 x 500mg, 2 x 200mg, 1 x 100mg, 1 x 50mg, 2 x 20mg, 1 x 10mg, 1 x 5mg, 2 x 2mg, 1 x 1mg. Cylindrical weights are marked with their nominal value. All are supplied in a protective case along with tweezers, a cleaning cloth and dust brush.

    Class E2 Weight Set, W1101-6-100

    Our Premium Class E2 Weight Set is ideal for calibration of analytical balances with a 0.0001g readability. Precision manufactured from high purity, 316 stainless steel (7.96kg/dm³), these weights are corrosion resistant with magnetic susceptibility <0.005. The set includes 6 weights, 1x100mg, 1x10g, 2x20g, 1x50g, 1x100g, for checking repeatability, cornerload, linearity and span. The weights are supplied in a protective case with tweezers, a cleaning cloth and a certificate of verification.

    Class M1 Weight Sets

    Basic, compact balances with readability in the range of 0.1g to 0.01g can be calibrated with M1 Class weights.


    M1 Calibration Weight Set includes 13 pieces: 1 x 1g, 2x2g, 1x5g, 1x10g, 2x20g, 1x50g, 1x100g, 2x200g, 1x500g and 1x1Kg.  A protective carrying case is included.

    Individual Weights

    All individual weights are supplied in protective, screw capped plastic containers.  We offer both F1 and M1 class individual weights.

    Certificate of Verification

    Each individual weight and weight set from Accuris is supplied with an individual Certificate of Verification confirming that the weight(s) meet OIML regulations and tolerances for the specific weight class.

    Ordering Information:

    Item No.DescriptionClass
    W1000-100Accuris calibration weight (F1 Grade) 100gF1
    W1000-200 Accuris calibration weight (F1 Grade) 200gF1
    W1000-500Accuris calibration weight (F1 Grade) 500gF1
    W1000-1000Accuris calibration weight (F1 Grade) 1kg F1
    W1005-1 Accuris calibration weight (M1 grade) 1gM1
    W1005-2 Accuris calibration weight (M1 grade) 2gM1
    W1005-5 Accuris calibration weight (M1 grade) 5gM1
    W1005-10Accuris calibration weight (M1 grade) 10gM1
    W1005-20Accuris calibration weight (M1 grade) 20gM1
    W1005-50Accuris calibration weight (M1 grade) 50gM1
    W1005-100Accuris calibration weight (M1 grade) 100gM1
    W1005-200Accuris calibration weight (M1 grade) 200gM1
    W1005-500Accuris calibration weight (M1 grade) 500gM1
    W1005-1000 Accuris calibration weight (M1 grade) 1kgM1
    W1005-2000Accuris calibration weight (M1 grade) 2kgM1
    W1000-TF Tweezers for handling calibration weights
    W1100-200 Accuris calibration weight set (F1 Grade) 23 pcs, 1mg to 200g, includes protective case, tweezers, dust brush and cleaning cloth.F1
    W1101-6-100Calibration set for Analytical Balances, Class E2, 6 pcs: 1x100mg, 1x10g, 2x20g, 1x50g, 1x100g includes protective case, tweezers, dust brush and cleaning cloth.E2
    W1105-13-1000Economy calibration set for compact balances (Class M1), 13 pcs: 1x1g, 2x2g, 1x5g, 1x10 g, 2x20g, 1x50g, 1x100g, 2x200g, 1x500g, 1x1,000g, includes protective caseM1
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