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Calibration Weights:
Single Calibration Weights & Weight Sets

We carry a wide variety of calibration weights and calibration weight sets in several classes. Use these calibration weights to calibrate an inaccurate scale, or just to make sure your scale is “right on the money”. We have a good range of masses in weight tolerance classes OIML E2, OIML F1, OIML M2, and ASTM classes 0, 1, 2, 3, 4 and 6.

If you're here for just a single weight, narrow your results by choosing the single calibration weight subcategory below. If ya need more than one weight, ya might save some money by choosing a set of calibration weights. They have their own subcategory, too.

Subcategories
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Products (Total Items: 120)
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M2 Calibration Weight - 10 gram
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M2 Calibration Weight - 10 gram
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 1 gram
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M2 Calibration Weight - 1 gram
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 5 gram
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M2 Calibration Weight - 5 gram
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 100 gram
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M2 Calibration Weight - 100 gram
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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this OIML Class M2 100g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.
M2 Calibration Weight - 50 gram
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M2 Calibration Weight - 50 gram
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 20 gram
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M2 Calibration Weight - 20 gram
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 150 gram
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M2 Calibration Weight - 150 gram
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 200 gram
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M2 Calibration Weight - 200 gram
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 300 gram
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M2 Calibration Weight - 300 gram
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 500 gram
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M2 Calibration Weight - 500 gram
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OIML Class M2 Calibration Weight.
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M2 Calibration Weight - 1000 gram
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M2 Calibration Weight - 1000 gram
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OIML Class M2 Calibration Weight.
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17 Piece - Class M2 - Calibration Weight Set
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17 Piece - Class M2 - Calibration Weight Set
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Weights included: 100g, 50g, 20g( x2 ), 10g, 5g, 2g( x2 ), 1g, 500mg, 200mg( x2 ), 100mg, 50mg, 20mg( x2 ), 10mg
M2 Calibration Weight - 2000 gram
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M2 Calibration Weight - 2000 gram
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OIML Class M2 Calibration Weight.
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Adam 700100225 Attachment Weights
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Adam 700100225 Attachment Weights
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Adam Equipment 700100225 Attachment Weight Set for the Adam TBB Series Triple Beam Balances.
F1 Calibration Weight - 500 milligram
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F1 Calibration Weight - 500 milligram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 5 milligram
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F1 Calibration Weight - 5 milligram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 50 milligram
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F1 Calibration Weight - 50 milligram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 2 milligram
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F1 Calibration Weight - 2 milligram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 20 milligram
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F1 Calibration Weight - 20 milligram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 200 milligram
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F1 Calibration Weight - 200 milligram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 1 milligram
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F1 Calibration Weight - 1 milligram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 10 milligram
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F1 Calibration Weight - 10 milligram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 100 milligram
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F1 Calibration Weight - 100 milligram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 50 milligram
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ASTM Class 4 Calibration Weight - 50 milligram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 500 milligram
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ASTM Class 4 Calibration Weight - 500 milligram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 1 milligram
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ASTM Class 4 Calibration Weight - 1 milligram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 10 milligram
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ASTM Class 4 Calibration Weight - 10 milligram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 100 milligram
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ASTM Class 4 Calibration Weight - 100 milligram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 2 milligram
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ASTM Class 4 Calibration Weight - 2 milligram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 20 milligram
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ASTM Class 4 Calibration Weight - 20 milligram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 200 milligram
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ASTM Class 4 Calibration Weight - 200 milligram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 5 milligram
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ASTM Class 4 Calibration Weight - 5 milligram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 5 milligram
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E2 Calibration Weight - 5 milligram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 50 milligram
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E2 Calibration Weight - 50 milligram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 500 milligram
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E2 Calibration Weight - 500 milligram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 1 milligram
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E2 Calibration Weight - 1 milligram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 10 milligram
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E2 Calibration Weight - 10 milligram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 200 milligram
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E2 Calibration Weight - 200 milligram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 100 milligram
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E2 Calibration Weight - 100 milligram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 2 milligram
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E2 Calibration Weight - 2 milligram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 20 milligram
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E2 Calibration Weight - 20 milligram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 5 gram
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ASTM Class 4 Calibration Weight - 5 gram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 2 gram
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ASTM Class 4 Calibration Weight - 2 gram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 1 gram
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ASTM Class 4 Calibration Weight - 1 gram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 1 gram
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F1 Calibration Weight - 1 gram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 2 gram
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F1 Calibration Weight - 2 gram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 5 gram
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F1 Calibration Weight - 5 gram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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ASTM Class 3 Calibration Weight - 50 gram
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ASTM Class 3 Calibration Weight - 50 gram
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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 3 50g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.
ASTM Class 4 Calibration Weight - 10 gram
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ASTM Class 4 Calibration Weight - 10 gram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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M2 Calibration Weight - 5000 gram
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M2 Calibration Weight - 5000 gram
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OIML Class M2 Calibration Weight.
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ASTM Class 3 Calibration Weight - 200 gram
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ASTM Class 3 Calibration Weight - 200 gram
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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 3 200g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.
F1 Calibration Weight - 10 gram
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F1 Calibration Weight - 10 gram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 20 gram
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ASTM Class 4 Calibration Weight - 20 gram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 20 gram
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F1 Calibration Weight - 20 gram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 50 gram
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ASTM Class 4 Calibration Weight - 50 gram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Non-Polished Calibration Weight - 100 gram
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ASTM Class 4 Non-Polished Calibration Weight - 100 gram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 2 Calibration Weight - 100 gram
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ASTM Class 2 Calibration Weight - 100 gram
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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 2 100g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.
F1 Calibration Weight - 50 gram
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F1 Calibration Weight - 50 gram
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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 50 milligram
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ASTM Class 1 Calibration Weight - 50 milligram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 500 milligram
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ASTM Class 1 Calibration Weight - 500 milligram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 1 gram
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ASTM Class 1 Calibration Weight - 1 gram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 1 milligram
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ASTM Class 1 Calibration Weight - 1 milligram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 10 gram
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ASTM Class 1 Calibration Weight - 10 gram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 10 milligram
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ASTM Class 1 Calibration Weight - 10 milligram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 100 milligram
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ASTM Class 1 Calibration Weight - 100 milligram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 2 gram
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ASTM Class 1 Calibration Weight - 2 gram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 2 milligram
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ASTM Class 1 Calibration Weight - 2 milligram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 20 gram
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ASTM Class 1 Calibration Weight - 20 gram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
(item received may differ from image)
ASTM Class 1 Calibration Weight - 20 milligram
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ASTM Class 1 Calibration Weight - 20 milligram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 200 milligram
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ASTM Class 1 Calibration Weight - 200 milligram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 5 gram
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ASTM Class 1 Calibration Weight - 5 gram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 5 milligram
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ASTM Class 1 Calibration Weight - 5 milligram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
(item received may differ from image)
ASTM Class 4 Non-Polished Calibration Weight - 300 gram
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ASTM Class 4 Non-Polished Calibration Weight - 300 gram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
(item received may differ from image)
ASTM Class 4 Non-Polished Calibration Weight - 200 gram
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ASTM Class 4 Non-Polished Calibration Weight - 200 gram
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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 5 gram
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E2 Calibration Weight - 5 gram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 10 gram
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E2 Calibration Weight - 10 gram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 1 gram
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E2 Calibration Weight - 1 gram
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Ohaus OIML Class E2 Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 2 gram
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E2 Calibration Weight - 2 gram
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Your Price Today: $74.70

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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Calibration Weight - 100 gram
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ASTM Class 4 Calibration Weight - 100 gram
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Your Price Today: $75.60

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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 50 gram
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ASTM Class 1 Calibration Weight - 50 gram
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Your Price Today: $78.30

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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 100 gram
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F1 Calibration Weight - 100 gram
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Your Price Today: $79.20

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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 20 gram
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E2 Calibration Weight - 20 gram
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Your Price Today: $89.10

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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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M2 Calibration Weight - 10,000 Gram
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M2 Calibration Weight - 10,000 Gram
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Your Price Today: $91.50

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OIML Class M2 10 kilogram Calibration Weight.
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ASTM Class 4 Non-Polished Calibration Weight - 500 gram
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ASTM Class 4 Non-Polished Calibration Weight - 500 gram
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Your Price Today: $91.80

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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 100 gram
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ASTM Class 1 Calibration Weight - 100 gram
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Your Price Today: $94.50

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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 200 gram
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ASTM Class 1 Calibration Weight - 200 gram
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Your Price Today: $95.00

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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 1 200g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.
ASTM Class 6 Calibration Weight Set - (50g - 1g)
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ASTM Class 6 Calibration Weight Set - (50g - 1g)
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ASTM Class 6 - 8 Piece Calibration Weight Set. (item received may differ from image)
ASTM Class 1 Calibration Weight - 500 gram
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ASTM Class 1 Calibration Weight - 500 gram
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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 1 500g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.
ASTM Class 2 Calibration Weight - 1000 gram
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ASTM Class 2 Calibration Weight - 1000 gram
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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 2 1000g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.
ASTM Class 4 Calibration Weight - 2000 gram
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ASTM Class 4 Calibration Weight - 2000 gram
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Your Price Today: $100.00

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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 4 2000g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.
E2 Calibration Weight - 50 gram
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E2 Calibration Weight - 50 gram
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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Non-Polished Calibration Weight - 400 gram
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ASTM Class 4 Non-Polished Calibration Weight - 400 gram
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Your Price Today: $104.40

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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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F1 Calibration Weight - 200 gram
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F1 Calibration Weight - 200 gram
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Your Price Today: $105.30

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OIML Class F1 ISO Compliant Calibration Weight with or without NVLAP certificate.
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E2 Calibration Weight - 100 gram
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E2 Calibration Weight - 100 gram
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Your Price Today: $117.00

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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Non-Polished Calibration Weight - 1000 gram
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ASTM Class 4 Non-Polished Calibration Weight - 1000 gram
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Your Price Today: $121.50

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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 0 Calibration Weight - 100 gram
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ASTM Class 0 Calibration Weight - 100 gram
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Your Price Today: $144.00

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Digital scales come factory calibrated, but there's a chance they can fall out of calibration during shipping or after use. Use this ASTM Class 0 100g calibration weight to test and calibrate your digital scale, so ya know it's nice and accurate.
E2 Calibration Weight - 200 gram
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E2 Calibration Weight - 200 gram
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Your Price Today: $151.20

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OIML Class E2 Calibration Weight with or without NVLAP certificate.
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ASTM Class 4 Non-Polished Calibration Weight - 2000 gram
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ASTM Class 4 Non-Polished Calibration Weight - 2000 gram
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Your Price Today: $151.20

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ASTM Class 4 Calibration Weight with or without NVLAP certificate.
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ASTM Class 1 Calibration Weight - 200 gram
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ASTM Class 1 Calibration Weight - 200 gram
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ASTM Class 1 Calibration Weight with or without NVLAP certificate.
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A&D AD-1700-20G 20 Gram Calibration Weight
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A&D AD-1700-20G 20 Gram Calibration Weight
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Your Price Today: $152.32

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A&D AD-1700-20G 20 Gram Calibration Weight for use with A&D moisture balances.
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