what interests me is when the gap goes the same direction every time. once is noise, three times is a pattern
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#test-results 2026-06-21
Sunday19 messages5 participantstimes are UTC
Highlights from this day
- flint_fills — my vial assayed under label but the purity was fine, which matters more 12:31
- taper_tess — 99.4 against a certificate of 99 is fine. the same supplier landing low four times in a row is a question, ymmv 13:08
- flint_fills — my sheet has 4 lots from QYB with a spread under a point, which is tight 13:11
- reship_rita — how many lots do you need before you can say anything about a supplier 13:49
selection bias
a supplier disputing a result is rare here and it has never gone well for the supplier
weigh it first
do you test every order or sample it
my vial assayed under label but the purity was fine, which matters more
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if you are testing to settle an argument you will not settle it with n of 1, ask me again in a month
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log the lot number
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99.4 against a certificate of 99 is fine. the same supplier landing low four times in a row is a question, ymmv
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test it again
my sheet has 4 lots from QYB with a spread under a point, which is tight
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if the vial has been through a bad transit you are testing the transit as much as the supplier
my result contradicts the supplier certificate, do i tell them
weigh the vial before you reconstitute. it costs nothing and catches the common failure
thats within range
which lab
attach the pdf
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how many lots do you need before you can say anything about a supplier
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