Batch traceability becomes much easier when the right questions are asked before relying on a certificate or placing a procurement order.

1. What is the exact lot or batch identifier?

Ask for the identifier that appears on the physical material, not only a product name or catalogue code.

2. Does the analytical report show the same identifier?

If the laboratory uses a separate accession or sample number, ask how it maps to the supplier’s batch.

3. Who submitted the sample?

This helps distinguish supplier quality-control testing from a downstream independent sample submission.

4. Which methods were actually performed?

Request the scope explicitly: identity, purity, quantitative content and any other relevant parameters should be listed separately.

5. Is the original report available?

An original PDF or laboratory verification record generally contains more context than a cropped image.

6. Can the report be independently verified?

Where a laboratory provides an official lookup, request the report or accession reference needed to use it.

7. Is this the current lot?

Confirm whether the report applies to the inventory being offered now or to a historical/representative batch.

8. What changed between lots?

If a new production batch is supplied, ask whether the analytical documentation changed with it.

For a practical record format, see the Lot Registry & Chain of Custody and Batch Documentation Index.

Research procurement and documentation only.