Sartorius Calibration Weights and Calibration Mass Sets

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Individual Calibration Weights

Sartorius Certified Calibration Weights:

NVLAP-accredited metrology lab
Meets or exceeds all ASTM Standards
1 mg to 5 kg calibration masses
Corrosion-resistant stainless steel
Custom weight sets available (phone 1-800-832-0055 for information)

Sartorius Calibration Weights are sold individually or as a 9-piece or 21-piece set with a Report of Traceabililty, and, for an additional nominal fee, with a certificate of Calibration.

Certificate of Calibration - The Certificate of Calibration report includes the nominal value and the conventional mass correction value for each weight certified. It also lists information on the standards the weights were compared against, including:

Identifying number
NIST test number
Date the standards were last calibrated
NVLAP laboratory code

Report of Traceability - At no additional cost, each Sartorius weight or weight set is supplied with a Report of Traceability. This report identifies:

Tolerance class
Type of construction
NIST test number
Date of applicable Sartorius primary standard(s)
Secondary set number
Includes technician's signature

Individual Metric Stainless Steel OIML Precision Weights

Available Classes: Class 0 - Class 1 - Class 2 - Class E1 - Class E2 - Class F1

OIML/R111, Class F1

Table of Weight Tolerances

Metric Weight Tolerances

The table below is a listing of the tolerances of various classes of masses. The weight value can deviate above or below the nominal value by the tolerance defined. To determine the tolerance of a mass, look at the denomination or nominal value of the weight and the appropriate class you need.

Available Classes: Class 0 - Class 1 - Class 2 - Class E1 - Class E2 - Class F1

	International Organization of Legal Metrology Recommendation R111*			ANSI/ASTM E617
	E1	E2	F1	0	1	2
Denomination Metric	mg	mg	mg	mg	mg	mg
5000 kg			25000
3000 kg
2000 kg			10000
1000 kg		1600	5000
500 kg		800	2500
300 kg
200 kg		300	1000
100 kg		160	500
50 kg	25	75	250	63	125	250
30 kg				38	75	150
25 kg				31	62	125
20 kg	10	30	100	25	50	100
10 kg	5	15	50	13	25	50
5 kg	2.5	7.5	25	6	12	25
3 kg				3.8	7.5	15
2 kg	1.0	3.0	10	2.5	5.0	10
1 kg	0.5	1.5	5	1.3	2.5	5.0
500 g	0.25	0.75	2.5	0.6	1.2	2.5
300 g				0.38	0.75	1.5
200 g	0.1	0.3	1.0	0.25	0.5	1.0
100 g	0.05	0.15	0.5	0.13	0.25	0.5
50 g	0.03	0.1	0.3	0.06	0.12	0.25
30 g				0.037	0.074	0.15
20 g	0.025	0.08	0.25	0.037	0.074	0.1
10 g	0.02	0.06	0.2	0.025	0.05	0.074
5 g	0.015	0.05	0.15	0.017	0.034	0.054
3 g				0.017	0.034	0.054
2 g	0.012	0.04	0.12	0.017	0.034	0.054
1 g	0.01	0.03	0.1	0.017	0.034	0.054
500 mg	0.008	0.025	0.08	0.005	0.01	0.025
300 mg				0.005	0.01	0.025
200 mg	0.006	0.02	0.06	0.005	0.01	0.025
100 mg	0.005	0.015	0.05	0.005	0.01	0.025
50 mg	0.004	0.012	0.04	0.005	0.01	0.014
30 mg				0.005	0.01	0.014
20 mg	0.003	0.01	0.03	0.005	0.01	0.014
10 mg	0.002	0.008	0.025	0.005	0.01	0.014
5 mg	0.002	0.006	0.02	0.005	0.01	0.014
3 mg				0.005	0.01	0.014
2 mg	0.002	0.006	0.02	0.005	0.01	0.014
1 mg	0.002	0.006	0.02	0.005	0.01	0.014
0.5 mg
0.3 mg
0.2 mg
0.1 mg
0.05 mg

* OIML - International Recommendation R111 replaces International Recommendation numbers 1, 2, 20, 52. OIML tolerances shown for weights 100kg and larger are proposed tolerances.

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