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Seven documents: a batch certificate of analysis, an SDS, a technical data sheet, a particle-size distribution, a BET surface area report, a pH and loss-on-drying record, and — when the buyer is running a method — a test chromatogram. The pack costs nothing extra to assemble and it closes most quality conversations before they start.
| # | Document | What the buyer does with it |
|---|---|---|
| 1 | Certificate of Analysis (per batch) | ties the batch to their order — the single most requested document |
| 2 | Safety Data Sheet | EHS clearance and customs handling |
| 3 | Technical Data Sheet | the standing specification, not batch-specific |
| 4 | Particle-size distribution | confirms the mesh and micron window (e.g. 40–63 µm) |
| 5 | BET surface area report, per ISO 9277 | capacity benchmark; must be consistent with the pore diameter |
| 6 | pH and loss on drying / water content | reproducibility, and the link to remaining adsorption activity |
| 7 | Test chromatogram | proves the material works in a real separation, not only on paper |
A certificate with only a surface area number is not a characterisation. Insist on all of these:
| Red flag | Why it fails |
|---|---|
| Surface area quoted with no method | you cannot tell what was measured |
| A 60 Å grade claiming the same surface area as a 100 Å grade | pore diameter and surface area move in opposite directions |
| Particle size given only as "fine powder" | no window and no control |
| Certificate not tied to a batch number | cannot be filed in a quality record |
| SDS missing | blocks customs and EHS clearance |
Written by the VEN Desiccant export team from the ISO 9277 and USP〈621〉references and from the document requests we actually receive from chromatography buyers. Drafting was AI-assisted; the standard references were checked against the published sources and edited by our team before publication. We publish it because most rejected shipments are rejected on paperwork, not on material. Ask us for the batch pack and we will return it filled in for the grade you are specifying.
Last checked: 11 October 2026.
Send the grade you are specifying and we will return the certificate set filled in for that product.
