Which number belongs to the batch?
A supplier can give a group of vials one lot or batch number. A testing lab gives the material it receives a sample ID so its staff can connect the measurements to that submission. Both numbers appear in a three-page test record for tirzepatide from Pure Tested Peptides.
On the first page, Finnrick lists 20250815 as the batch ID for a vial labeled 10 mg. Those eight digits look like a date. The form uses them to identify the batch. Its timeline dates two other events in November 2025, when the sample went to the lab and when Finnrick issued the certificate.
The same page gives the test certificate its own code, vzsh38g. That code lets a reader find this particular test even if another vial from the batch is tested later.
How does the batch connect to sample 130487?
On the second page, Krause Analytical records receiving the sample on November 19, 2025. Its sample description repeats the peptide name, the stated 10 mg and Finnrick’s code vzsh38g. Beside the receipt date, the lab gives its own number for the sample, 130487.
The results table lists 9.58 mg of tirzepatide. Follow 130487 to the third page and the number appears again beside the instrument data. To work backward from the graphs, use 130487 to find the lab’s results page, then vzsh38g to find the batch on Finnrick’s cover sheet.
What does the result say about another vial?
Krause ties its result to the sample pictured on its report. A second vial labeled 20250815 would share the recorded batch number. Its contents could differ. To describe how much the vials vary, a reader would need measurements from several vials and an account of how they were selected.
The same limit applies when tracing the material back to its maker. Finnrick names the supplier associated with 20250815. Connecting that code to the original manufacturer’s production lot would require a record from the supplier linking the two.
Frequently asked questions
Do two graphs on the certificate count as two tested vials?
The chromatogram and mass spectrum both carry sample number 130487. They show different measurements on material the lab tracked under that one number.