What a batch is
A batch is a set quantity of material made in one process, or series of steps, so that it is expected to be the same throughout within set limits. "Batch" and "lot" mean the same thing in the main manufacturing guidelines.
The international guideline on good manufacturing practice for active ingredients, ICH Q7, and the US rules in 21 CFR 210.3 both define the terms this way.
What the number does
A batch number is a unique mix of letters, numbers or symbols. ICH Q7 says it is the code from which the production and distribution history of that batch can be worked out.
In a regulated factory, that means one code leads back to the batch records, the lab results, the labels that were printed and where the batch was sent.
Why it matters for testing
Every batch is made separately, so every batch can differ. That is why the number matters on paperwork:
Educational information only. Nothing here is medical advice, dosing guidance or a recommendation to use any substance. Research peptides are not approved medicines and are not for human or animal consumption. Speak to a qualified professional and follow the law where you are.
