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| Russian | English |
| дата допустимого использования | valid use date (USP Reference Standards (RS) do not carry expiration dates in the traditional sense. Instead, they are assigned Valid Use Dates. As long as a lot is listed as being the "current lot" it is valid and suitable for use. Once a current lot is depleted, it becomes the "previous lot." At this time a valid use date is assigned, which is typically 3-12 months from the date of depletion.  usp.org amatsyuk) |