Calibration Weights for Analytical Balances

OIML E2 Weights

There are 2 options OIML is the international equivalent to ASTM and are sold in classes just as ASTM weights are.  Balances with readabilities of between 0.01mg and 0.1 mg (Analytiacal Balances) should use an E2 Class weight which is equivalent to ASTM Class 1.  Balances with readability of 0.001g and 0.01g (Precision Balances) can use F2 Class weights that are equivalent to ASTM Class 2.

Adjusted to Meet or Exceed OIML E2 Tolerances

OIML Class E2 Weights and Weight Sets

• Weights from 1mg to 5mg are Aluminum. Weights from 10mg to 50kg are Stainless Steel.

• Weight Sets up to 500g include a Polycarbonate Case. Weight Sets above 500g include Wood Hinged Case with Polycarbonate Case inside for weights 500g and below. 50kg weight does not come in case.

• Individual Weights up to 500mg include a Polypropylene Case. Weights from 1g to 5kg include a Polycarbonate Case. 10kg and 20kg weights include a Heavy Duty Case. 50kg weight does not include a case