Class 2 calibration weight set consists of 21 piece ranging from 1 milligram flat weight to 100 gram knob weight (PWB7228-2T), ASTM Shape, includes Report of Traceability. Typical lead time is 7 to 10 business days from the date order is placed. No Certificate of Calibration is included
with this weight set so this is no Uncertainty Value
with the documentation.
These ANSI/ASTM Class 2
are appropriate for calibrating high-precision balances with readabilities ranging from 0.001g to 0.01g.
Product photo may not exactly match the product offered for sale.
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. 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 then you need a NVLAP Certificate of Calibration and you should NOT buy this weight set since it includes only a Report of Traceability
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
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.