Ep Reference Standard Expiry Date. Download the pdf format of our catalogue here to access the most updated information about our reference standards we advise to use the online database. The edqm supplies chemical reference substances crs herbal reference standards hrs and biological reference preparations brp as well as reference spectra for the tests and assays to be carried out in accordance with the official methods prescribed in the european pharmacopoeia.
However they are monitored regularly. We simply have no data to substantiate product quality. Download the pdf format of our catalogue here to access the most updated information about our reference standards we advise to use the online database.
Extension past these dates is unadvisable.
What this means is that we only put expiration dates on products where we have collected sufficient real time stability data to allow us to assign a minimum 36 month expiry date. For all other products including most neat reference materials we assign a retest date until we have collected sufficient data to establish long term shelf life 36 60 months. However they are monitored regularly. Specific batches of candidate material are selected.
