Read the proposed specification first
Confirm the product name, grade and reporting basis. Your purchasing specification provides the reference for reviewing a proposed supply.
Match batch information to the material
A certificate of analysis reports parameters for a stated batch or lot. Check that the document identifies the proposed product and the information required by your review process.
Keep the document roles clear
Request the current safety data sheet for product hazard and handling information, and technical data for the proposed grade. These documents support different parts of a purchasing review and should not be treated as substitutes for one another.