the COA question that gets asked weekly, answered properly
Genuinely asking, not being difficult. Everyone in c/progresspics repeats that area percent is important. I believe it, but I have never seen anyone show why, and when I search I get 6 threads of people agreeing with each other. Is there a paper? Is there a measurement? Or is this one of those things that is true…
No. This is the kind of confident post that gets copied into a screenshot and repeated for years. Where is the evidence.
purity and net content are two different numbers, same vial
Batch number and date of analysis? Both are load-bearing.