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Comparison between OIML Class Weights and ASTM Class Weights

OIML Class Weight Set available in E1, E2, F1, F2, M1, M2 and M3 Class.
OIML Class Weight Set

Standard Weights and Test Weights are available in OIML Classes E1, E2, F1, F2, M1, M2 and M3 matching all requirements of OIML R111. These are also available in ASTM Classes 1 - 6 matching requirements of ASTM E617. Nominal values range from 1 mg to several tons satisfying all industry and customer specific needs.

Design and Construction:

Whether it is OIML or ASTM, all weights are made of premium Stainless Steel to make them corrosion resistant. Monobloc weights (E1 Class & E2 Class) are specifically designed to offer long term stability and weighing with an adjustment cavity (F1, F2, M1, M2 and M3) provide best value for money. All Weights are mirror polished to provide best aesthetic looks.

Comparison in Classes between OIML and ASTM Weights.


OIML Class

ASTM Class

Laboratory Reference: High precision for calibrating other measurements



Precision balances: to calibrate balances with a readability range of 0.1 mg to 0.01 mg, and class.



High accuracy balances: standard for analytic work and calibrated scales with a readability as low as 0.1 g to 0.001g.

F1 & F2


Top loading balances: for calibrating balances with intermediate accuracy and readability as low as 0.1 g to 0.01 g.



Industrial and commercial scales and balances: for commercial and postal scales, legal-for-trade scales, and Class IIIL or IV scales.

M1, M2, M3

4, 5, 6

The above guide is useful for both type of consumers who intend to buy OIML Class Weights or ASTM Class Weights. Depending upon the Balances, you can select either OIML Class Weights or ASTM Class Weights.

VCI PRECI offers quality OIML Class Weights in all the classes viz, E1, E2, F1, F2, M1, M2 and M3. We are one of the renowned manufacturer, exporter and supplier of OIML Standard weights in India. Our team assist you to buy the right product for your lab use after understanding your detailed requirement.

For enquiries please mail us at or whatsapp us on +91 9920107524.

Thank you.

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