Precision Test Weights

Filter by

Weight

Specifications Met

Calibration Weight Class

Material

Diameter

REACH

RoHS

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Height

Number of Pieces

47 Products

Precision Test Weights with Calibration Certificate

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



	30 g	-0.000074 g to 0.000074 g	3/4"	5/8"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	0000000


	40 g	-0.000074 g to 0.000074 g	3/4"	13/16"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000
	50 g	-0.000097 g to 0.000097 g	3/4"	1"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000
	100 g	-0.00025 g to 0.00025 g	1"	1 1/16"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000
	150 g	-0.000375 g to 0.000375 g	1 1/8"	1 3/16"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000
	200 g	-0.0005 g to 0.0005 g	1 3/16"	1 9/16"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000
	300 g	-0.00075 g to 0.00075 g	1 1/2"	1 1/2"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000
	400 g	-0.000975 g to 0.000975 g	1 1/2"	1 7/8"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000
	500 g	-0.0012 g to 0.0012 g	1 1/2"	2 5/16"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000
	1,000 g	-0.0025 g to 0.0025 g	2"	2 9/16"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000
	2 kg	-0.000005 kg to 0.000005 kg	2 1/2"	3 5/16"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000


	4 kg	-0.000975 kg to 0.000975 kg	3"	4 9/16"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000
	5 kg	-0.000012 kg to 0.000012 kg	3 1/4"	4 7/8"	Stainless Steel	ASTM E617 Class 1	Glove Plastic case	Calibration Certificate Traceable to NIST	00000000	000000


	Calibration Weight Class 4



			30 g	-0.009 g to 0.009 g	3/4"	5/8"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000


			40 g	-0.00105 g to 0.00105 g	3/4"	13/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000
			50 g	-0.0012 g to 0.0012 g	3/4"	1"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000
			100 g	-0.002 g to 0.002 g	1"	1 1/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000
			150 g	-0.003 g to 0.003 g	1 1/8"	1 3/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000
			200 g	-0.004 g to 0.004 g	1 3/16"	1 9/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000
			300 g	-0.006 g to 0.006 g	1 7/16"	1 7/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000
			400 g	-0.008 g to 0.008 g	1 7/16"	1 15/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000
			500 g	-0.01 g to 0.01 g	1 1/2"	2 5/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000
			1,000 g	-0.02 g to 0.02 g	2"	2 9/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000
			2 kg	-0.00004 kg to 0.00004 kg	2 1/2"	3 5/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000


			4 kg	-0.00008 kg to 0.00008 kg	3"	4 9/16"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000
			5 kg	-0.0001 kg to 0.0001 kg	3 3/16"	4 7/8"	Stainless Steel	ASTM E617 Class 4	Glove Plastic case	Calibration Certificate Traceable to NIST	000000000	000000

Precision Test Weight Sets with Calibration Certificate


21-Piece Set	17-Piece Set	9-Piece Set

These highly accurate test weight sets for calibrating precision scales come with a certificate of calibration traceable to NIST that states they’ve passed a test for accuracy. Each test weight is marked with its weight.

Calibration Weight Class 4—Class 4 weights are good for calibrating precision balances, laboratory balances, and digital scales.

	Includes	Material	Specs. Met	Certificate Type		Each
Calibration Weight Class 1



	9	Test Weights (1 each): 1 g, 5 g, 10 g, 50 g, 100 g Test Weights (2 each): 2 g, 20 g Plastic case	Stainless Steel	ASTM E617 Class 1	Calibration Certificate Traceable to NIST	0000000	000000000


	17	Test Weights (1 each): 10 mg, 50 mg, 100 mg, 500 mg, 1 g, 5 g, 10 g, 50 g, 100 g Test Weights (2 each): 20 mg, 200 mg, 2 g, 20 g Plastic case	Stainless Steel	ASTM E617 Class 1	Calibration Certificate Traceable to NIST	0000000	00000000
	21	Test Weights (1 each): 1 mg, 5 mg, 10 mg, 50 mg, 100 mg, 500 mg, 1 g, 5 g, 10 g, 50 g, 100 g Test Weights (2 each): 2 mg, 20 mg, 200 mg, 2 g, 20 g Plastic case	Aluminum, Stainless Steel	ASTM E617 Class 1	Calibration Certificate Traceable to NIST	0000000	00000000


	Calibration Weight Class 4



			9	Test Weights (1 each): 1 g, 5 g, 10 g, 50 g, 100 g Test Weights (2 each): 2 g, 20 g Plastic case	Stainless Steel	ASTM E617 Class 4	Calibration Certificate Traceable to NIST	0000000	000000


			17	Test Weights (1 each): 10 mg, 50 mg, 100 mg, 500 mg, 1 g, 5 g, 10 g, 50 g, 100 g Test Weights (2 each): 20 mg, 200 mg, 2 g, 20 g Plastic case	Stainless Steel	ASTM E617 Class 4	Calibration Certificate Traceable to NIST	0000000	00000000
			21	Test Weights (1 each): 1 mg, 5 mg, 10 mg, 50 mg, 100 mg, 500 mg, 1 g, 5 g, 10 g, 50 g, 100 g Test Weights (2 each): 2 mg, 20 mg, 200 mg, 2 g, 20 g Plastic case	Aluminum, Stainless Steel	ASTM E617 Class 4	Calibration Certificate Traceable to NIST	0000000	00000000

Precision Test Weight Sets


9-Piece Set	17-Piece Set	21-Piece Set

Use these highly accurate test weight sets to calibrate precision scales. Each test weight is marked with its weight.

No. of Pieces	Includes	Material	Calibration Wt. Class	Specs. Met	Each
9	Test Weights (1 each): 1 g, 5 g, 10 g, 50 g, 100 g Test Weights (2 each): 2 g, 20 g Plastic case	Stainless Steel	1	ASTM E617 Class 1	0000000
17	Test Weights (1 each): 10 mg, 50 mg, 100 mg, 500 mg, 1 g, 5 g, 10 g, 50 g, 100 g Test Weights (2 each): 20 mg, 200 mg, 2 g, 20 g Plastic case	Stainless Steel	1	ASTM E617 Class 1	00000000
21	Test Weights (1 each): 1 mg, 5 mg, 10 mg, 50 mg, 100 mg, 500 mg, 1 g, 5 g, 10 g, 50 g, 100 g Test Weights (2 each): 2 mg, 20 mg, 200 mg, 2 g, 20 g Plastic case	Aluminum, Stainless Steel	1	ASTM E617 Class 1	00000000


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.	Wt. Tolerance	Dia.	Ht.	Material	Calibration Wt. Class	Specs. Met	Includes	Each
30 g	-0.000074 g to 0.000074 g	3/4"	5/8"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	0000000
50 g	-0.000097 g to 0.000097 g	3/4"	1"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000
100 g	-0.00025 g to 0.00025 g	1"	1 1/16"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000
150 g	-0.000375 g to 0.000375 g	1 1/8"	1 3/16"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000
200 g	-0.0005 g to 0.0005 g	1 3/16"	1 9/16"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000
300 g	-0.00075 g to 0.00075 g	1 1/2"	1 1/2"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000
400 g	-0.000975 g to 0.000975 g	1 1/2"	1 7/8"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000
500 g	-0.0012 g to 0.0012 g	1 1/2"	2 5/16"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000
1,000 g	-0.0025 g to 0.0025 g	2"	2 9/16"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000
2 kg	-0.000005 kg to 0.000005 kg	2 1/2"	3 5/16"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000
4 kg	-0.000975 kg to 0.000975 kg	3"	4 9/16"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000
5 kg	-0.000012 kg to 0.000012 kg	3 1/4"	4 7/8"	Stainless Steel	1	ASTM E617 Class 1	Glove Plastic case	000000