log the lot number
#test-results 2026-01-12
Monday18 messages8 participantstimes are UTC
Highlights from this day
- closer_not_simpler — a supplier disputing a result is rare here and it has never gone well for the supplier 19:09
- deamidation — underfill is more common than impurity. if you only test purity you are testing the less likely failure 19:15
- tam_logs — one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally 19:40
- VialBot — Purity check: no report on file for lot KP-0925. Nothing logged either way. 19:41
- VialBot — Digest for the week of 2025-07-06 has been published. 21:31
a supplier disputing a result is rare here and it has never gone well for the supplier
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update from 20 months ago: retested the same supplier, result came back better, logged both
underfill is more common than impurity. if you only test purity you are testing the less likely failure
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right so assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem, i think
my vial assayed under label but the purity was fine, which matters more
one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally
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Purity check: no report on file for lot KP-0925. Nothing logged either way.
my result contradicts the supplier certificate, do i tell them
selection bias
the honest limits: hobby chain of custody is weak and any result here should be read with that in mind
is it worth testing if the vial has already been through a warm transit
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nice result
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a point or two between the certificate and an independent result is inside what two labs disagree by
what interests me is when the gap goes the same direction every time. once is noise, three times is a pattern, thats one data point
Digest for the week of 2025-07-06 has been published.
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is quantity testing available as a separate thing or bundled