| Supplier identity and authorization | Business registration details, applicable chemical trading or operating permits, and the legal entity named on the quotation and contract. | Confirm that the supplier is legally established and authorized for the relevant activities in the country or region where it operates. Permit requirements vary by jurisdiction. | Match the legal entity across the quotation, contract, invoice, payment instructions, and shipping documents. Verify permits with the issuing authority where possible. |
| Product identity and grade | Product specification, current Safety Data Sheet (SDS), and a representative Certificate of Analysis (COA). | Confirm the product is acetic acid (CAS 64-19-7) and that the concentration, grade, impurity limits, and intended use match the purchase specification. | Specify concentration and test methods in the purchase order. For food, pharmaceutical, or other regulated uses, request documentation appropriate to that use; industrial-grade material should not be assumed suitable. |
| Batch quality control | Batch-specific COA, sampling and testing procedures, and traceability information. | Check that results are tied to the supplied batch and report relevant agreed parameters, such as assay and specified impurities. Limits depend on the grade and application. | Agree on acceptance limits, retesting procedures, and how nonconforming material will be handled before placing the order. |
| SDS and hazard communication | Current SDS in the required language and hazard-label information for the supplied concentration. | Review hazards, first aid, handling, storage, exposure controls, personal protective equipment, and emergency measures. Classification and labeling can depend on concentration and local rules. | Ensure the SDS matches the actual product and concentration, and provide it to receiving, safety, and emergency-response personnel before delivery. |
| Chemical inventory and market access | Applicable substance inventory status, registrations or notifications, and importer or downstream-user documentation, where relevant. | Requirements depend on the destination market, substance, quantity, and supply-chain role. For example, TSCA requirements may apply in the United States and REACH obligations may apply in the European Economic Area. | Identify who is responsible for applicable registrations, notifications, and import obligations in writing. Do not treat a supplier’s general compliance statement as proof of every buyer-specific obligation. |
| Transport classification | Transport classification and shipping documents for the exact concentration, packaging, transport mode, and destination. | Acetic acid transport classification depends on the formulation and applicable transport rules. UN 2789 is used for glacial acetic acid and certain solutions with more than 80% acid; UN 2790 covers certain solutions containing not less than 10% and not more than 80% acid. Confirm the applicable entry for the actual shipment. | Have the supplier or qualified dangerous-goods shipper confirm the UN number, hazard class, packing group, marks, and documentation under the rules governing the route and transport mode. |
| Packaging and bulk-transfer readiness | Packaging or tank-trailer specifications, compatibility information, inspection records, and transfer procedures. | Confirm packaging is suitable for the concentration and shipment conditions, and that loading and unloading arrangements are compatible with the receiving site. | Agree on delivery quantity, permitted vehicle or container type, connections, hose and seal checks, unloading controls, and responsibility for equipment readiness. |
| Storage and emergency controls | Written storage guidance, spill-response information, and relevant emergency contact procedures. | Acetic acid is corrosive; concentrated material can also present a flammable-liquid hazard. Follow the product SDS and applicable local fire, chemical-storage, and workplace-safety requirements. | Before delivery, verify that the site has suitable compatible storage, access controls, spill response, and trained personnel for the intended volume and concentration. |
| Management-system certifications | Current third-party certificates, where claimed, including certificate scope, site, and validity dates. | A quality-management certification such as ISO 9001 can indicate a documented management system, but it is not a substitute for product-specific testing or legal compliance. | Check the certificate issuer and scope. Treat certifications as supporting evidence rather than proof that the product meets every specification or regulatory requirement. |
| Commercial terms and delivery controls | Written quotation, specification, delivery schedule, inspection terms, and agreed Incoterms® rule and named place, if used. | Clarify concentration, quantity tolerance, packaging, delivery responsibilities, transfer of risk, required documents, and procedures for delays or rejected goods. | Put the approved specification, batch documentation, sampling plan, and discrepancy-resolution process into the purchase contract or purchase order. |