Weighing According to US Pharmacopeia

Weighing is one of the key activities carried out in every QC laboratory. Usually it is one of the first parts of a whole analysis chain, such as when a sample or a standard is prepared for subsequent dilution and HPLC or qNMR analysis. As any weighing errors have the potential to propagate through the whole analysis and deliver an inaccurate final result, the United States Pharmacopeia (USP) has set stringent requirements for balances used for weighing analytes for quantitative measures.
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