Precision Weighing Balances
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1 kg Class 1 calibration weight (WT2KGCLS1C), Cylindrical OIML Shape, includes Report of Traceability and Certificate of Calibration.  Typical lead time is 5 to 7 business days from the date order is placed to shipping from NVLAP metrology lab located Arvata, Colorado.

This ANSI/ASTM Class 1 can be used as reference standard in calibrating other weights and appropriate for calibrating high-precision balances.

Single-piece construction: Because the precise measurement of density can only be achieved using a single piece weight, all Sartorius weights are ASTM Type 1 single-piece weights.  This weight contain no air cavity or foreign adjusting material, thus providing the maximum mass stability.  In addition, it is an ASTM requirement that one-piece weights are used as standards and where mass stability is required.

The mass standards produced by Sartorius today are designed to meet or exceed the standards of the American Society of Testing Materials (ASTM E617)

We offer a choice of 21, 17, 16, 9, 8 and 5 piece weight sets or individually weights ranging from 5kg to 1mg.  See the complete offering of calibration weights here.

Sartorius 1 Kilogram Weight

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Brand Model Capacity Readability
Sartorius 1 Kilogram Weight
Modes
Add. Features
Comparable Scales

Other Brands 1kg School Weight - $40.00
Sartorius 500g Laboratory Weight - $159.00

Sartorius 2kg Calibration Weight - $219.00
Sartorius Ultra Class Weight Set - $1499.00

Sartorius Certified Class 1 Weights - $1409.00
Sartorius 21 pc Class 2 Mass Set - $1229.00

Sartorius Precision Class 1 Weights - $899.00
Sartorius Ultra Calibration Mass Se - $599.00
MSRP: $175.00
YOU PAY $174.00
Untitled Document
calibration weights
Certified Calibration Weights from Sartorius
  • 1 mg to 5 kg weights.  Sold individually or as a 9-piece or 21-piece set.
  • All weights meet or exceed ASTM specifications
  • All mass measurements are made using procedures developed by NIST
  • All mass standards are milled from the finest corrosion-resistant stainless steel stock ensuring consistent density
  • Each weight is calibrated by a NVLAP-accredited metrology lab in a climate-controlled environment
  • One-piece construction provides the maximum mass stability
  • Each weight and weight set is supplied complete with a Certificate of Traceability
  • Certificate of Calibration


Individual Calibration Weights

certified weights


Metric Weight Tolerances - all tolerances stated in milligram (mg)
Calibration Weights Includes Report of Traceability & Certificate of Calibration
Nominal
Value		 Class Part Number Report of
Traceability		 Certificate of
Calibration		 Tolerance Price
Cylindrical OIML Shape
5 kg Ultra Class U WT5KGCLSUC YES YES ± 6.00 mg $389.00
5 kg Class 1 WT5KGCLS1C YES YES ± 12 mg
$369.00
5 kg Class 2 WT5KGCLS2C YES YES ± 25 mg
$324.00
2 kg Ultra Class U WT2KGCLSUC YES YES ±2.5 mg
$224.00
2 kg Class 1 WT2KGCLS1C YES YES ±5.0 mg
$219.00
2 kg Class 2 WT2KGCLS2C YES YES ± 10 mg
$179.00
1 kg Ultra Class U WT1KGCLSUC YES YES ±1.25 mg
$179.00
1 kg Class 1 WT1KGCLS1C YES YES ±2.5 mg
$174.00
1 kg Class 2 WT1KGCLS2C YES YES ±5.0 mg
$154.00
500 g Ultra Class U WT500GCLSUC YES YES ±0.600 mg
$164.00
500 g Class 1 WT500GCLS1C YES YES ±1.2 mg
$159.00
500 g Class 2 WT500GCLS2C YES YES ±2.5 mg
$144.00
200 g Ultra Class U WT200GCLSUC YES YES ±0.250 mg
$139.00
200 g Class 1 WT200GCLS1C YES YES ±0.50 mg
$134.00
200 g Class 2 WT200GCLS2C YES YES ±1.0 mg
$124.00
laboratory weights
Nominal
Value		 Class Part Number Report of
Traceability		 Certificate of
Calibration		 Tolerance Price
Small Knob Style, ASTM Shape
100 g Ultra Class U WT100GCLSUC YES YES ±0.125 mg
$109.00
100 g Class 1 WT100GCLS1C YES YES ±0.25 mg
$94.00
100 g Class 2 WT100GCLS2C YES YES ±0.50 mg
$89.00
50 g Ultra Class U WT50GCLSUC YES YES ±0.060 mg
$99.00
50 g Class 1 WT50GCLS1C YES YES ±0.12 mg
$89.00
50 g Class 2 WT50GCLS2C YES YES ±0.25 mg
$84.00
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.
Custom weight sets are available upon request by calling
Precision Weighing Balances at 978-521-7095
All calibration weights are not returnable.  Once your order has been placed it CAN NOT be cancelled.  Please carefully consider this prior to placing your order.  The reason for this is these weights are custom manufactured and are certified on the date they were made.  In addition, if you touch the calibration weight with your fingers the oil in your skin would change the tolerance and we can not take this chance if the weight was returned.
metrology lab weights
test weights


Sartorius Calibration Weights

(select the calibration weight & any of the options below and then the "BUY HERE" image)

Certificate of Calibration
The Certificate of Calibration report includes the nominal value and the conventional mass correction value for each weight certified.  It will also list information on the standards the weights were compared against including:
  • Uncertainty value
  • Identifying number
  • NIST test number
  • Date the standards were last calibrated
  • NVLAP laboratory code

Recertification Service
Weight values can change over time due to scratches, fingerprints, wear