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AWI BSS 24x24 NTEP Washdown Bench Scale 1000 x .2lb
AWI BSS 24x24 NTEP Washdown Bench Scale 1000 x .2lb

Troemner 1000g ASTM Class 2 Cylindrical Calibration Weight

1000g ASTM Class 2 Calibration Weight
Weights with calibration certificates require a 1-2 week lead time.

Troemner Electronic Balance Calibration Weights are manufactured from the highest quality stainless steel alloy, possessing closely controlled density, low magnetic susceptibility, good stability and resistance to corrosion and damage through handling. All of Troemner's Electronic Balance Calibration Weights are type II which have an adjusting cavity to allow for adjustment during future calibrations. Within the weight there is a cavity that is filled with adjusting material, typically the same material from which the weight is made. This cavity is sealed during the production process to ensure the stability of the weight. Electronic Balance Calibration Weights are cylindrical in shape and flat on top, to stack easily on center.


  • Weights from 10 g to 500 g are machined as straight cylinders with the adjusting cavity opening in the bottom of the weight.
  • Cylindrical weights from 1 kg to 5 kg are machined as cylinders and have a groove around the diameter approximately 25% from the top of the weight to allow for easier handling. The adjusting cavity opening is in the bottom of the weight for the 1 kg weight and on the top of the weight for the 2 kg through 5 kg.

Each weight includes a case and white
cotton glove for handling the weight

Selecting The Right Weight:

  • Check you scale's manual or specification sheet to find the weight value required to calibrate your scale.
  • It is recommended that the weight selected to calibrate a balance and/or scale have a tolerance small enough as not to be detected by the balance and/or scale. Troemner recommends the tolerance of a weight selected for calibrating a balance and/or scale is no more than 1/3 of the readability or precision of the balance and/or scale being calibrated. If this cannot be achieved, it is suggested that a Class 1 or Troemner UltraClass Electronic Balance Calibration Weight with a NVLAP certificate be ordered which provides the actual mass value for the weight which reduces measurement uncertainty.
  • Electronic Balance Calibration Weights can also be used to check or verify the accuracy of your balance and/or scale between calibrations. It is recommended that the user check a balance and/or scale prior to each use. Keeping the weight at or near the balance and/or scale keeps the weight at the same temperature as the equipment.

Mass 1000g
Accuracy ASTM Class 2, ±5.0mg
Case Supplied with impact-resistant polypropylene case.
Construction Highly polished 316 stainless steel
2 piece construction with grove near the top for easier handling.

If you require a calibration certificate, select the option at the bottom of the page before ordering. All sales on calibration weights are final and cannot be returned for refund - NO EXCEPTIONS. These weights require extreme care and there is no way for us to tell if a weight was mishandled without costly re-calibration.

Certificate Options (choose below)
No Certificate

Weights ordered without certificates are supplied only with Troemners Statement of Accuracy. If you must conform to ISO, FDA, or similar requirements, it is recommended that you purchase an NVLAP Calibration Certificate with your weight.
Example Statement of Accuracy (click)

Traceable Certificate
The Traceable Certificate includes nominal value, mass correction, uncertainty and tolerance for each weight in addition to the basic customer information such as name, address, purchase order number, date of calibration, accuracy class, density and statement of traceability to NIST. The Traceable Certificate measurement process includes one series of comparisons using a single standard.

Example Traceable Certificate (click)
NVLAP Weight Calibration Certificate

Troemner NVLAP Weight Calibration Certificate - NVLAP calibrations/certifications meet all ISO, FDA, GMP, GLP, DOD, ANSI/NCSL Z540-1 and Nuclear requirements and are traceable to NIST. Procedures and processes used to generate this multi-page certificate, as well as its format and content, are prescribed by NVLAP. Users held absolutely accountable for their weights should request NVLAP certification. The document contains

  • Customer name & address
  • Date of calibration
  • Equipment and standards used in the calibration
  • Accuracy class
  • True mass value (mass in a vacuum)
  • "As found" mass correction (for recalibration) and "as left" mass corrections for each weight
  • Uncertainty of measurement process for each weight. Uncertainty to tolerance ratios are guaranteed.
  • Environmental conditions during test
  • Construction and density of the weight(s)
  • Calibration procedure used
  • A statement of traceability to NIST
  • Helpful list of terms and definitions

Example NVLAP Calibration Certificate (click)

For a full comparison of certificate options click here

Metric Tolerance Summary Chart

Available Options:
This product was added to our catalog on Friday 01 July, 2011.
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