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Requirements for laboratory weightsClasses P Q and T
Weightcalibration service of the National Bureau of Standards
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abbreviation acceptance tolerances accuracy of calibration adjusting cavity allowable variation Analytical balance apparent mass Avoirdupois brass standards Bureau of Standards Circular Class Q Class S-l classes of weights CM CM CMCM COCM constancy corrosion denominations of commonly density DENSITY Classes electroplating group tolerances include weights individual weights knob laboratory weights Class Lacquer larger weights LIFTERS Classes lifters or forceps Maintenance tolerances MARKINGS Classes Maximum and minimum mcocm mg for weights milligram minimum denominations National Bureau newly adjusted weights nominal value nonmetric OCOO OOO OOO OOO OOOO OOOO OOOO Ounce oz ap oz or equivalent package percent pockets precision laboratory standards prescribed in table Qualification test quick-weighing rhodium routine analytical sealed set of weights sheet-metal weights specified standards of mass surface protection tantalum test load tion Tolerances Classes tolerances for weights tolerances prescribed Trade weights troy UNNECESSARY MARKINGS weights 10 g weights of classes wire weights