P.O. Box 62743-00200
Office No.11,Plessey House,Uhuru Highway
Precision weights are weights meeting the requirements of any of the four classes in the “Acceptance Tolerances for Analytical Weights” of Test Method “Tex-901-K. Verifying Calibration of Weighing Devices used for Laboratory Testing.” Class 1 and Class 2 weights are used as standards for calibration of analytical balances, in the calibration of lesser class weights, and as counterweights with analytical balances.