Documentation & Traceability

A complete chain has four links: the identifier printed on the vial, the identifier on the order or invoice, the identifier on the published analytical record, and the entry in your own inventory or quality system. Traceability means those four agree. Any one of them missing turns the chain into an assertion, and assertions do not survive a review.

The link that fails most often is the last one, because it is the only one the supplier cannot maintain for you. Material arrives, the label is read once, the vial goes into storage, and the number is never written down anywhere searchable. Six months later the lot exists physically but not administratively, which for audit purposes is the same as not existing.

Related terminology as this site uses it: lot number, batch number, certificate of analysis, and audit trail.

Do the reconciliation while the parcel is still open. Photograph the vial labels and the outer packaging, read the lot identifier off the label rather than off the invoice, and enter it into your system before the material is assigned a storage position. The order matters: reading the identifier off the paperwork and assuming the vial matches is precisely the check you are supposed to be performing.

If the label, the order and the record do not agree, the lot goes on hold and does not enter general stock. Regard that as a blocking condition rather than as something to resolve later, because a mismatched lot that has already been aliquoted cannot be un-aliquoted, and the resulting inventory row is a permanent question mark.

Record who performed the check and when. Incoming inspection that lives in one person's memory has to be redone the moment that person moves teams, and it usually gets skipped instead.

Per-lot records are published when they have been uploaded for that lot. Look a lot up through batch verification or the COA library, and save the PDF into your own system rather than relying on a link — a record you can only reach online is a record you can lose to a URL change.

An empty result means no record has been published for that identifier. It does not mean the lot is undocumented. The correct next step is a documentation request quoting the order and lot, which produces a dated response you can file alongside the receiving log. Bulk or recurring programmes can arrange a consolidated set through bulk inquiry or the documentation pack.

What a record does and does not establish is set out in the research use policy: it describes the tested lot at the time of testing, and it is not a use instruction, a warranty for other lots, or a substitute for your own qualification.

Keep the supplier PDF, your receiving log entry, and any retest data you generate in one place keyed by lot rather than by order date. Orders are a commercial artefact; lots are the thing experiments reference. A filing system organised by invoice makes the common question — what do we know about this vial — into a search problem.

Set a review point rather than relying on an expiry field. Where a record states a retest date, diary it. Where it does not, your own storage history and handling record are what justify continued use, which is another reason the storage guidance on shipping and storage is part of the documentation story rather than separate from it.

The research compound documentation guide covers how these pieces assemble into a file an institutional reviewer can follow without narration from you.

This page is the record chain. The methods and the numbers on a record are on lab testing. The operating controls on the supply side are on quality control. The mechanics of the lookup tool, and how to read a portal result, are on batch-verified research materials. Regional receiving expectations are on UAE research standards.

Everything published on this site is documentation about documentation, and it is worth saying that none of it interprets an experiment for you. The purpose is narrower: make it possible to prove which material you had.