You are here Home Guidance and resources Resources Reference and retention samples (Annex 19) Demonstrating compliance with the PIC/S guide to GMP, PE009-13 Last updated 11 June 2019 Listen Print Share LinkedIn (Twitter) Facebook Email Loading... A reference sample is a sample for the purpose of future analysis, which could refer to starting materials, packaging materials or finished products. A retention sample is a sample representing the batch of finished product as distributed. Samples from a stability trial program cannot be used as retention samples. Previous Qualification and validation (Annex 15) Next Complaints and product recall (Chapter 8)
