Read the report.
Understand the result.
A Certificate of Analysis (COA) records results for a tested sample. Read the complete report rather than relying on a single headline number.
Results apply to the sample and methods described in the report. They do not establish suitability for human use.
Identity & batch
Check that the compound and batch or lot identifier correspond to the material you are evaluating.
Testing method
Read the method used for each result. Different methods answer different questions about a sample.
Reported results
Review values, units, and any stated specifications. A purity percentage is not the same as the quantity in a vial.
Date & laboratory
Look for the report date, laboratory details, and report identifier when reviewing the document.
