Lubricant documents checklist: TDS, SDS and batch COA
Before ordering lubricants, check the technical documents for the exact product and agree which batch and shipping documents will be supplied. TDS, SDS and COA serve different purposes; none should be treated as a substitute for the others.
Which technical documents should be checked first?
A TDS describes product technical information, while an SDS provides safety-related information. Check the product identity, document version and applicable scope rather than accepting a document solely because the viscosity matches.
Match the document to the offered product code and manufacturer where these are stated. If a document covers a product family, ask the issuer to clarify whether the proposed grade is within its scope. A technical data sheet is not automatically evidence of a separate equipment approval.
What does a batch COA establish?
A batch certificate of analysis records test information for the identified batch. It does not automatically describe later batches or guarantee that a future order has already been tested.
At quotation stage, confirm whether a batch COA can be provided and when it will become available. For shipment, check the product and batch identification against the supplied goods. Do not rely on a sample report as proof for a different batch.
Check how product and manufacturer details appear in a quotation →
When should shipping documents be agreed?
The required shipping documents depend on the destination and agreed transaction. Confirm the available documents, issuer and delivery timing before paying a deposit; do not assume a certificate of origin is included in every order.
Check destination-specific requirements with the relevant importer or customs broker. Names, quantities and product descriptions should correspond across the agreed order and shipping paperwork; ask for corrections before the shipment proceeds when details differ.
| Document | Purpose | When to request |
|---|---|---|
| TDS | Product technical information | During product evaluation |
| SDS | Safety and handling information | Before handling or shipment planning |
| Batch COA, if available | Test information for the identified batch | Agree availability before order; verify for shipment |
| Commercial invoice and packing list | Agreed transaction and packing details | Agree before order; check before shipment |
| Certificate of origin, where required | Origin documentation for the transaction | Confirm requirements and availability before order |
What if the documents do not match the offer?
List the mismatched product name, grade, issuer or batch reference and ask the supplier for clarification. Keep the corrected document together with the agreed quotation so you can check the shipment against the same reference.
- Match the product name and grade to the quoted item.
- Check the issuer, document version and applicable product range.
- For batch records, match the batch reference to the supplied goods.
Questions about this topic
Can an SDS replace a TDS?
No. The documents address different information needs. Request the applicable technical and safety information for the offered product.
Should every quotation already contain a batch COA number?
No. A production batch may not yet be assigned. Confirm whether the document is available and when the actual batch report can be supplied.
Is a certificate of origin always included?
Do not assume so. Requirements, availability, issuer and any associated cost should be agreed for the destination and transaction.
