The header
A COA identifies the product, the lot or batch number, the testing laboratory and the date of analysis. Match the lot number to the one printed on your bottle.
Specification vs. result
Each test row shows a specification (the acceptable limit) and the measured result. A result within specification is a pass.
Test methods
Methods such as ICP-MS (for heavy metals) or HPLC (for compound identity and potency) describe how the measurement was made.
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