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Sartorius Calibration Weights

Sartorius

Individual Calibration Weights | Calibration Weight Sets

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 Traceability, 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

Weight Class Standards

	Ultra Class U Standards - These mass standards provide great precision, ideal for use as reference standards to calibrate high-resolution analytical balances or to calibrate other weights. Ultra-mass tolerances are approximately two times the precision of ANSI/ASTM Class 1
	ASTM Class 1 - Appropriate for the calibration of high-precision analytical balances. They can also be used as reference standards to calibrate other weights
	ASTM Class 2 - Appropriate for calibrating high-precision toploading balances with readabilities ranging from 0.001 g to 0.01 g

Individual Calibration Weights with Report of Traceability and Certificate of Calibration

Nominal Value	Ultra Class	ASTM Class 1	ASTM Class 2
Cylindrical, OIML Shape
200 g	WT200GCLSUC $145	WT200GCLS1C $140	WT200GCLS2C $130
500 g	WT500GCLSUC $175	WT500GCLS1C $170	WT500GCLS2C $150
1 kg	WT1KGCLSUC $185	WT1KGCLS1C $185	WT1KGCLS2C $160
2 kg	WT2KGCLSUC $235	WT2KGCLS1C $230	WT2KGCLS2C $190
5 kg	WT5KGCLSUC $410	WT5KGCLS1C $385	WT5KGCLS2C $340
Small Knob Style, ASTM Shape
1 g	WT1GCLSUC $95	WT1GCLS1C $80	WT1GCLS2C $75
2 g	WT2GCLSUC $95	WT2GCLS1C $80	WT2GCLS2C $80
5 g	WT5GCLSUC $100	WT5GCLS1C $85	WT5GCLS2C $80
10 g	WT10GCLSUC $100	WT10GCLS1C $90	WT10GCLS2C $85
20 g	WT20GCLSUC $100	WT20GCLS1C $90	WT20GCLS2C $85
50 g	WT50GCLSUC $105	WT50GCLS1C $95	WT50GCLS2C $90
100 g	WT100GCLSUC $115	WT100GCLS1C $100	WT100GCLS2C $95
Flat Weights, ASTM Shape
1 mg	WT1MGCLSUC $95	WT1MGCLS1C $75	WT1MGCLS2C $70
2 mg	WT2MGCLSUC $95	WT2MGCLS1C $75	WT2MGCLS2C $70
5 mg	WT5MGCLSUC $95	WT5MGCLS1C $75	WT5MGCLS2C $70
10 mg	WT10MGCLSUC $100	WT10MGCLS1C $75	WT10MGCLS2C $70
20 mg	WT20MGCLSUC $100	WT20MGCLS1C $75	WT20MGCLS2C $70
50 mg	WT50MGCLSUC $100	WT50MGCLS1C $80	WT50MGCLS2C $75
100 mg	WT100MGCLSUC $105	WT100MGCLS1C $80	WT100MGCLS2C $75
200 mg	WT200MGCLSUC $105	WT200MGCLS1C $80	WT200MGCLS2C $75
500 mg	WT500MGCLSUC $105	WT500MGCLS1C $80	WT500MGCLS2C $75

Individual Calibration Weights with Report of Traceability Only

Nominal Value	Ultra Class	ASTM Class 1	ASTM Class 2
Cylindrical, OIML Shape
200 g	WT200GCLSU $120	WT200GCLS $100	WT200GCLS2 $90
500 g	WT500GCLSU $140	WT500GCLS1 $120	WT500GCLS2 $115
1 kg	WT1KGCLSU $160	WT1KGCLS1 $135	WT1KGCLS2 $125
2 kg	WT2KGCLSU $210	WT2KGCLS1 $160	WT2KGCLS2 $150
5 kg	WT5KGCLSU $365	WT5KGCLS1 $330	WT5KGCLS2 $305
Small Knob Style, ASTM Shape
1 g	WT1GCLSU $55	WT1GCLS1 $50	WT1GCLS2 $45
2 g	WT2GCLSU $55	WT2GCLS1 $50	WT2GCLS2 $45
5 g	WT5GCLSU $55	WT5GCLS1 $50	WT5GCLS2 $45
10 g	WT10GCLSU $60	WT10GCLS1 $50	WT10GCLS2 $45
20 g	WT20GCLSU $60	WT20GCLS1 $55	WT20GCLS2 $50
50 g	WT50GCLSU $70	WT50GCLS1 $60	WT50GCLS2 $55
100 g	WT100GCLSU $75	WT100GCLS1 $70	WT100GCLS2 $95
Flat Weights, ASTM Shape
1 mg	WT1MGCLSU $55	WT1MGCLS1 $45	WT1MGCLS2 $35
2 mg	WT2MGCLSU $55	WT2MGCLS1 $45	WT2MGCLS2 $35
5 mg	WT5MGCLSU $55	WT5MGCLS1 $45	WT5MGCLS2 $35
10 mg	WT10MGCLSU $55	WT10MGCLS1 $45	WT10MGCLS2 $40
20 mg	WT20MGCLSU $55	WT20MGCLS1 $45	WT20MGCLS2 $40
50 mg	WT50MGCLSU $60	WT50MGCLS1 $50	WT50MGCLS2 $40
100 mg	WT100MGCLSU $60	WT100MGCLS1 $50	WT100MGCLS2 $45
200 mg	WT200MGCLSU $60	WT200MGCLS1 $50	WT200MGCLS2 $45
500 mg	WT500MGCLSU $60	WT500MGCLS1 $50	WT500MGCLS2 $45

Calibration Weight Sets with Report of Traceability and Certificate of Calibration

21 piece weight set includes: (1) 1 mg, (2) 2 mg, (1) 5 mg, (1) 10 mg, (2) 20 mg, (1) 50 mg, (1) 100 mg, (2) 200 mg, (1) 500 mg, (1) 1 g, (2) 2 g, (1) 5 g, (1) 10 g, (2) 20 g, (1) 50 g, (1) 100 g

9 piece weight set includes: (1) 1 g, (2) 2 g, (1) 5 g, (1) 10 g, (2) 20 g, (1) 50 g, (1) 100 g

Catalog Number	Description	Price
WTSET21PCUC	Ultra Class U 21-piece Weight Set, ASTM Shape	$1479
WTSET9PCUC	Ultra Class U 9-piece Weight Set, ASTM Shape	$805
WTSET21PC1C	Class 1 21-piece Weight Set, ASTM Shape	$1389
WTSET9PC1C	Class 1 9-piece Weight Set, ASTM Shape	$745
WTSET21PC2C	Class 2 21-piece Weight Set, ASTM Shape	$1209
WTSET9PC2C	Class 2 9-piece Weight Set, ASTM Shape	$649

Calibration Weight Sets with Report of Traceability Only

21 piece weight set includes: (1) 1 mg, (2) 2 mg, (1) 5 mg, (1) 10 mg, (2) 20 mg, (1) 50 mg, (1) 100 mg, (2) 200 mg, (1) 500 mg, (1) 1 g, (2) 2 g, (1) 5 g, (1) 10 g, (2) 20 g, (1) 50 g, (1) 100 g

9 piece weight set includes: (1) 1 g, (2) 2 g, (1) 5 g, (1) 10 g, (2) 20 g, (1) 50 g, (1) 100 g

Catalog Number	Description	Price
WTSET21PCU	Ultra Class U 21-piece Weight Set, ASTM Shape	$929
WTSET9PCU	Ultra Class U 9-piece Weight Set, ASTM Shape	$579
WTSET21PC1	Class 1 21-piece Weight Set, ASTM Shape	$879
WTSET9PC1	Class 1 9-piece Weight Set, ASTM Shape	$529
WTSET21PC2	Class 2 21-piece Weight Set, ASTM Shape	$829
WTSET9PC2	Class 2 9-piece Weight Set, ASTM Shape	$479

Table of Weight Tolerances

ASTM E617 (tolerances in mg)
Nominal Value	Ultra Class U	Class 1	Class 2
5 kg	6.00	12	25
1 kg	1.25	2.5	5.0
500 g	0.600	1.2	2.5
200 g	0.250	0.50	1.0
100 g	0.125	0.25	0.50
50 g	0.060	0.12	0.25
20 g	0.037	0/074	0.10
10 g	0.025	0.050	0.074
5 g	0.017	0.034	0.054
2 g	0.017	0.034	0.054
1 g	0.017	0.034	0.054
500 mg	0.005	0.010	0.025
200 mg	0.005	0.010	0.025
100 mg	0.005	0.010	0.025
50 mg	0.005	0.010	0.014
20 mg	0.005	0.010	0.014
10 mg	0.005	0.010	0.014
5 mg	0.005	0.010	0.014
2 mg	0.005	0.010	0.014
1 mg	0.005	0.010	0.014

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