gross mass on a jewellery scale plus the water content is enough to catch most underfills
#coa-reading 2025-07-09
Wednesday10 messages2 participantstimes are UTC
Highlights from this day
- blank_run — update from 5 months ago: started asking every supplier for water content and about half now include it 19:43
- blank_run — coming back to this i keep every certificate in a dated folder and compare them. two suppliers had not changed their template since 2019 19:45
- blank_run — i asked TFC for the method and they sent it. that alone put them ahead of most 19:59
- blank_run — i was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does 20:00
- blank_run — if you only read one line on a certificate, read the lot number. if you read two, read the assay 20:14
update from 5 months ago: started asking every supplier for water content and about half now include it
coming back to this i keep every certificate in a dated folder and compare them. two suppliers had not changed their template since 2019
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mixed fonts and inconsistent kerning in one document is worth a second look
no lot number, no certificate. a document you cannot tie to the vial in your hand is decoration
sloppy not sinister
ask for water content
i asked TFC for the method and they sent it. that alone put them ahead of most
i was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does
if you only read one line on a certificate, read the lot number. if you read two, read the assay
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