Adam ASTM Class 3 1 gram calibration weight. This weight has a tolerance of 0.1 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

Adam ASTM Class 3 2 gram calibration weight. This weight has a tolerance of 0.13 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

Adam ASTM Class 3 5 gram calibration weight. This weight has a tolerance of 0.18 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

Adam ASTM Class 3 10 gram calibration weight. This weight has a tolerance of 0.25 mg and can be used as a test weight for scales and balances with precision as high as 0.001 gram.

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 you know it's nice and accurate.

Adam ASTM Class 3 100 gram calibration weight. This weight has a tolerance of 1 mg and can be used as a test weight for scales and balances with precision as high as 0.01 gram.

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 you know it's nice and accurate.

Adam ASTM Class 3 500 gram calibration weight. This weight has a tolerance of 5 mg and can be used as a test weight for scales and balances with precision as high as 0.01 gram.

Adam ASTM Class 3 1 kilogram calibration weight. This weight has a tolerance of 10 mg and can be used as a test weight for scales and balances with precision as high as 0.1 gram.

Adam ASTM Class 3 2 kilogram calibration weight. This weight has a tolerance of 20 mg and can be used as a test weight for scales and balances with precision as high as 0.1 gram.

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 5000g calibration weight to test and calibrate your digital scale, so you know it's nice and accurate.