1mg - 100g twenty-one piece calibration weight set (PWB7228-2W), with NVLAP Certificate of Calibration to Class 2 tolerance. Typical lead time is 7 to 10 business days from the date order is placed to shipping from NVLAP metrology lab.
These Metric Precision Weight Set weights are appropriate for calibrating high-precision balances with readabilities ranging from 0.001g to 0.01g.
Single-piece construction: Weights 500 mg and below are 1 piece construction with no adjusting cavity with one end turned up for easy handling. Weights above 500 mg are 2 piece construction with handling knob.
Highly polished weights: 100g-1g weights are stainless steel, 500 mg down to 50mg weights are stainless steel, weights below 50mg are flat aluminum weights.
Weight Set Configuration: 100 g, 50 g , 2-20 g, 10 g, 5 g, 2-2 g, 1 g, 500 mg, 2-200 mg, 100 mg, 50 mg, 2-20 mg, 10 mg, 5 mg, 2-2 mg, 1 mg.
The weight set comes with a Polypropylene case with individual compartments for each weight. Includes forceps.
We offer a choice of 21 and 9 piece weight sets or individually weights ranging from 5kg to 1mg.
The total capacity of the weight set is 211.11 g.
Certificate of Calibration - The Certificate of Calibration includes everything found in a Report of Traceability with the additional information listed below:
Test conditions temperature, barometric pressure, humidity.
Conventional Mass Correction
Uncertainty of the measurement
Identification of the balance used in the calibration as found value if an adjustment is performed assumed density of the weight
material weight is made from Pass/Fail result of magnetic testing
Volume of the weight
Cubical Coefficient of expansion
True Mass correction
Difference between Traceability and Certificate of Calibration?
The major difference between the Report of Traceability and the Calibration Certificate is the Report of Traceability is a tolerance test and is only available for new weights. The Certificate of Calibration is a full report of the parameters tested. Above we outline what comes with each report. The Certificate of Calibration will, however, give a smaller uncertainty and a more precise value of the actual mass due to the multiple measurements that are made during the calibrating process. If you require a accredited laboratory certificate to meet ISO/IEC 17025 & ANSI/NCSC Z540-1 the you need a NVLAP Certificate of Calibration.
We also offer a huge selection of Laboratory Calibration Weights
and Calibration Mass Sets
with Calibration certification and NIST Traceable Calibration for lab balances at www.calibrationweight.com
Product photo may not exactly match the product offered for sale.
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.