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Product Description
Certified 200 gram Class 1 individual calibration weight (PWB8138W), Cylindrical OIML Shape, includes NVLAP Certificate of Calibration. Typical lead time is 7 to 10 business days from the date order is placed to shipping from NVLAP metrology lab.
This Class 1 Mass Standards provide the greatest precision we offer. Ideal for use as reference standards to calibrate other weights or for calibrating high-resolution analytical balances including the Scientech ZSA210, Mettler Toledo AX204,Acculab ALC210.4, Scientech SA210 or A&D GH-252
Class 1 weights are identical to E2 weights except for the nominal value markings. E2 weights have no markings on the weights, many customers prefer the weights be marked with the nominal value. The OIML E2 tolerance is approximately two times the precision of ANSI/ASTM Class 1.
2-piece construction; highly polished stainless steel.
Supplied with impact-resistant polypropylene case.
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.
This Class 1 Mass Standards provide the greatest precision we offer. Ideal for use as reference standards to calibrate other weights or for calibrating high-resolution analytical balances including the Scientech ZSA210, Mettler Toledo AX204,Acculab ALC210.4, Scientech SA210 or A&D GH-252
Class 1 weights are identical to E2 weights except for the nominal value markings. E2 weights have no markings on the weights, many customers prefer the weights be marked with the nominal value. The OIML E2 tolerance is approximately two times the precision of ANSI/ASTM Class 1.
2-piece construction; highly polished stainless steel.
Supplied with impact-resistant polypropylene case.
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.









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