Usp Reference Standards Expiration Dates. Dear valued usp customer usp reference standards rs do not carry expiration dates in the traditional sense. Search buy reference standards.
5 80 which will become official november 1 2020 users will no longer be able to assume a value of 100 0 for these rs lots in quantitative usp compendial applications. With the exception of usp prednisone tablets rs catalog 1559505 current lots of usp reference standards do not have valid use dates expiration dates. To confirm accuracy and reproducibility usp reference standards are rigorously tested and evaluated by multiple independent laboratories including usp commercial regulatory and academic labs.
Requirements of 211 137 and 211 166 for an expiration date exceeding the ones described above i e 1 6 months from the date of repackaging or 2 25 percent of the time between the date of.
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. 5 80 which will become official november 1 2020 users will no longer be able to assume a value of 100 0 for these rs lots in quantitative usp compendial applications. Click on any product description to access the sds and the usp certificate if available.
