http://www.bcit.ca/files/appliedresearch/pdf/certificates_of_analysis_nov_08_nw.pdf

A very common question asked by manufacturers, suppliers and contract laboratories is: “what should be on a certificate of analysis?” Let’s start from the beginning by defining a “certificate of analysis” or “CofA.” Alas, that modern mainstay of electronic information, Wikipedia, is silent on the topic. A Google search, however, turns up hundreds of examples of actual certificates but surprisingly few definitions