1,000 Gram Test Weights | McMaster-Carr

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5 Products

Test Weights with Calibration Certificate

These test weights come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy. They’re used to calibrate scales. All are marked with their weight.

Wt., g	Wt. Tolerance, g	Dia.	Ht.	Material	Calibration Wt. Class	Specs. Met	Certificate Type		Each
1,000	-0.47 to 0.47	2"	2 7/8"	Stainless Steel	7	ASTM E617 Class 7	Calibration Certificate Traceable to NIST	1777T61	0000000

Test Weights

Calibrate your scale with these test weights. They are marked with their weight.

Wt., g	Wt. Tolerance, g	Dia.	Ht.	Material	Calibration Wt. Class	Specs. Met		Each
1,000	-0.47 to 0.47	2"	2 7/8"	Stainless Steel	7	ASTM E617 Class 7	1777T31	0000000

Precision Test Weights with Calibration Certificate


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. Tolerance, g	Dia.	Ht.	Material	Specs. Met	Includes	Certificate Type		Each
Calibration Weight Class 1



	1,000	-0.0025 to 0.0025	2"	2 9/16"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	17605T61	0000000


	Calibration Weight Class 4



			1,000	-0.02 to 0.02	2"	2 9/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	17605T111	000000

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
1,000	-0.0025 to 0.0025	2"	2 9/16"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	17605T41	0000000