单证资料库
What each trade and quality document must contain, what to check before accepting it, and how long to retain it.
教育性参考资料，不推荐、不排名任何供应商。
本板块指南
Certificate of analysis (COA): what it must contain
A certificate of analysis reports the measured values of a specific lot against the agreed specification, and it is only meaningful when it identifies the lot, names the analytical methods …
阅读指南The technical specification document
The technical specification is the controlled document that defines what is being bought — parameters, limits, methods, tolerances, packaging and acceptance rules — and it is the reference …
阅读指南The commercial invoice in feed ingredient trade
The commercial invoice states what was sold, to whom, at what price and on what terms; customs uses it for valuation and classification, so errors create duty exposure as well as commercial…
阅读指南The packing list and why it matters at receipt
The packing list describes how the consignment is physically made up — packages, weights, marks and lot numbers — and it is the document receiving staff actually work from when they check a…
阅读指南Transport documents: bill of lading and equivalents
The transport document evidences the contract of carriage and receipt of the goods; a negotiable bill of lading also controls delivery, which makes it a document of title and a payment secu…
阅读指南Certificate of origin and origin evidence
A certificate of origin states the country in which the goods were produced; it supports customs treatment, preference claims and traceability, and preferential origin requires stricter evi…
阅读指南Health and veterinary certificates for feed imports
A health or veterinary certificate is an official attestation by the competent authority at origin that the consignment meets the destination's sanitary requirements, and it must follow the…
阅读指南Third-party inspection and survey reports
An inspection or survey report records what an independent surveyor observed and sampled at a defined time and place, and its evidential value depends entirely on how specific the instructi…
阅读指南Weight and quantity certificates
Weight certificates establish the contractual quantity, and because payment usually follows weight, the weighing method, the point of determination and the tolerance must all be agreed befo…
阅读指南Supplier declarations and statements
Supplier declarations are self-issued statements covering matters not measured on a certificate of analysis — GMO status, allergens, processing aids, animal-origin content, sustainability c…
阅读指南Document retention and the procurement audit trail
The audit trail is the set of records that lets you reconstruct, months or years later, what was bought, from whom, against which specification, with what verification and what deviations —…
阅读指南