How to read a batch document.
A practical checklist for matching a Certificate of Analysis to the material it describes.
A Certificate of Analysis (COA) records results for a stated sample or batch. It is useful only when you can connect the document to the specific material being assessed. A generic certificate, an unrelated batch or a purity number without a method leaves important questions open.
Match the identity
Compare the material name, batch or lot number, format, stated strength and test date on the document with the label and product specification. Ask how the supplier links the tested sample to the stock being supplied.
Read the methods and results
Look for the test method, the result, the acceptance criterion and the testing laboratory. Purity and identity are different questions. A chromatogram can support a purity result, but its presence alone does not prove the compound identity or the contents of a finished pen. Sterility, endotoxin and concentration require their own relevant evidence where those properties are claimed.
Look for gaps
Note missing pages, unclear dates, unexplained abbreviations or results with no stated limit. Ask for clarification rather than treating a headline percentage as a complete quality claim.
MC10 has not published batch-specific COAs for these product pages. We will link verified documents to the matching listings when available. Until then, do not assume a listed format has a particular test result.