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Calibration is determining the errors in a device relative to a standard, calculating a correction factor, and correcting the errors. Precision weight kit meet the requirements of one of the four classes. Use Class 1 and Class 2 weights as standards for calibration of analytical balances, in the calibration of lesser class weights, and as counterweights with analytical balances.

Use Class 3 and Class 4 weights as working weights and for calibration of general-purpose balances. General-purpose Set Weights are also known as Class F weights. Use Set as counter-weight in general-purpose balances and to calibrate scales to commercial tolerances. Most chrome plated, brass, and cast iron weights are general-purpose weights.


troemner individual weight class e2 oiml with certificate (1mg - 500mg, 1g - 500g, 1kg - 50kg)

Class E2 weights can be also be used as reference standards as well as calibrating Class I balances as specified in OIML R 76. Class E2 weights can also be used to calibrate Class F1 weights.

Our Price: US$107.59
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troemner individual weight class e1 oiml (1mg - 500mg, 1g - 500g, 1kg - 50kg)

Troemner weight Precision Weights conform to the standards of the Organisation Internationale de Metrologie Legale International Recommendation (OIML R 111). They are manufactured from the finest stainless steels available including Troemner Alloy 8 Stainless Steel that has low magnetic permeability, uniform consistency and high resistance to corrosion.

Our Price: US$134.97
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rice lake grip handle cast iron weights (1lb, 2lb, 5lb, 10lb, 20lb, 25lb, 30lb, 50lb, 100lb)
* NIST Cast Iron Weights
* lb
* Avoirdupois, NIST Class F & ASTM Class 7

Our Price: US$65.00
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