purity — 22 things I got wrong before I got it right
purity — 22 things I got wrong before I got it right. Making the case below, and I expect to lose some of it in the comments.
Kept every report as a PDF with the batch in the filename. Two years in, it is the most useful folder I own.
Sent a vial in specifically to check a supplier’s claim after a good experience. It matched. Boring result, worth logging.
Have now spent more on testing than on some of the orders. No regrets — the log is the reason I can buy without agonising.
Ask me anything specific. Anything general I will probably get wrong.
best — the order this archive was captured in
Date of analysis anchors the result to a manufacturing period. A two-year-old result is evidence about two years ago and should be read that way.
The template is vendor, compound, batch, service, claim, result, and who paid. Every one of those fields exists because a result missing it has been argued about here before.
Not convinced by the comparison. Different services, different gradients, and you are treating one as ground truth.
Not convinced by the comparison.
tomas_lundgren is right that the band matters more than the peak. Consistency across lots is the finding.
What was the claim on the certificate you are comparing against?