Byline: Momentum Editorial
Summary
When a peptide certificate of analysis for the same lot is revised, replaced, or marked superseded, inventory practice is to file the newest matching-lot report that still matches vial lot + product name + strength — and to treat older PDFs as archival only when the report (or library note) says so. Do not invent a revision number, “v2,” or supersede story if the PDFs do not print that language. Field-by-field reading still follows How to Read a Peptide Certificate of Analysis; blank cells still follow document-or-delete (When a COA Field Is Blank: Document-or-Delete for Research Inventory). This article covers documentation literacy for revised / superseding reports — not inventing identifiers, not purity claims, and not use protocols.
What “revision” / “superseding” means here (literacy only)
| Printed situation | Inventory use | What it is not |
|---|---|---|
| Report prints revision / supersede / “replaces” language for the same lot | Prefer the newest matching-lot PDF for active filing | Not permission to invent a revision ID if none is printed |
| Two PDFs, same lot, no revision language | Match lot + name + strength; keep both only if both truly match; prefer the library’s current row when VERIFY / hub points to one | Not a license to merge fields across PDFs |
| Older PDF marked superseded (printed) | Archive; do not use superseded fields to fill the live row | Not a purity or identity upgrade path |
| Blank revision field | Omit; do not invent “Rev A” | Document-or-delete |
A revision mark is lot documentation language — it is not identity, purity, or “third-party tested” by itself.
Match first, then choose the current report
- Match vial lot to the certificate (Matching Lot Numbers: From Vial Label to the COA Library).
- Confirm product name + strength on that report.
- If more than one PDF claims the same lot, read any printed revision / supersede / replaces / report date strings.
- File the newest matching-lot report for active inventory notes when supersede/revision language (or a clear later report date on the same lot) supports it.
- Copy fields only as printed on the report you are actively filing; do not backfill blanks from an older PDF.
- Name/store PDFs with file-hygiene discipline (Organizing Peptide COA PDF Filenames for Lab Receiving) — still without inventing lot or revision segments.
Document-or-delete when revision history is thin
If neither PDF prints revision/supersede language:
- Do not invent a revision history for notes or hub rows.
- Prefer the report that matches lot + name + strength and is the one linked/current in the COA library when that is clear.
- If both match and neither is marked superseded, keep provenance (both filenames) but do not merge purity, method, lab, or identity strings across files — each filed claim must appear on the report you cite.
- Blank cells on the chosen report stay blank (Academy 12).
Patterns that fail revision literacy
| Situation | Inventory action |
|---|---|
| Older PDF has a purity % the newer matching PDF left blank | Do not copy the older purity into the live row |
| Newer PDF is a different strength / different lot | Not a supersede for the vial — stop; match correctly |
| Marketing page says “updated COA” with no matching lot PDF | Not a filed certificate — request the lot report; do not invent |
| Filename includes “FINAL_v3” you typed | Remove invented revision tokens unless printed on the report |
| Superseded PDF used because it “looks more complete” | Archive superseded; file the current matching report’s printed fields only |
How this ties to receiving filenames
When a revised PDF arrives at receiving, rename and store from printed lot / product / strength / test-date / lab strings on that PDF (Academy 17). Keep the prior PDF as an archive sidecar if your lab requires provenance — still do not invent revision IDs in the new filename.
Citations
- USP — chromatography / analytical methods resource hub: https://www.usp.org/
- FDA — Analytical Procedures and Methods Validation for Drugs and Biologics: https://www.fda.gov/regulatory-information/search-fda-guidance-documents/analytical-procedures-and-methods-validation-drugs-and-biologics
- Momentum Labs COA library: https://getmomentumhealth.com/coa/
Review lot certificates in the Momentum Labs COA library. Match your vial lot (and strength) before choosing which PDF version to file.
Outbound store link only — this Academy page stays educational. CTA is COA hub only.