USP minimum sample weight

The United States Pharmacopeia (USP) is the American counterpart to the German pharmacopeia and is used by many companies in Germany as a guideline.

The requirements of the USP of balances are recorded in two chapters:

Compared to the minimum weight as an annex to  the DAkkS calibration, the minimum weight is only repeatability considered according to USP. In a DAkkS calibration certificate parameters such as eccentric load or linearity flow into the measurement uncertainty in use. However, they have only a slight impact with small weights.