quick one no lot number on this certificate, does that make it worthless
#coa-reading 2026-05-07
Thursday13 messages6 participantstimes are UTC
Highlights from this day
- month_six_me — why would a vial be 96.8 pure and still assay under label 15:49
- VialBot — Archive lookup: month_six_me first appears in this channel on 2026-01-21. 16:23
- karl_fischer — update on the earlier thing i was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does 16:39
ask for water content
test it yourself
why do some certificates report to one decimal and some to two
if you only read one line on a certificate, read the lot number. if you read two, read the assay
why would a vial be 96.8 pure and still assay under label
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Archive lookup: month_six_me first appears in this channel on 2026-01-21.
the three way match is vial, certificate, invoice. if all three agree you have something
update on the earlier thing i was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does
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mixed fonts and inconsistent kerning in one document is worth a second look
not evidence on its own
i keep every certificate in a dated folder and compare them. two suppliers had not changed their template since 2019, still working it out
a supplier certificate on its own is a starting point, not evidence. that is the whole reason the verification channel exists