a single sample tells you about a single vial. that is genuinely all it tells you
#test-results 2026-01-26
Monday24 messages5 participantstimes are UTC
Highlights from this day
- third_shift — does anyone log the negative results, the boring ones 20:30
- panel_before_after — i told QYB about a result they would not have liked and they did not argue. credit where it is due 20:34
- HPLC_Hank — weigh the vial before you reconstitute. it costs nothing and catches the common failure, not advice obviously 20:50
- HPLC_Hank — one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally 21:15
- cricket_or_footy — a result without a lot number and a purchase date is an anecdote with a pdf attached, someone check my working 22:30
certificate said 97.4 and the independent came back 98.6, is that a problem
selection bias
quantity testing is usually a separate line item and it is the one worth paying for, anyway
nice result
does anyone log the negative results, the boring ones
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weigh it first
cricket_or_footyquantity testing is usually a separate line item and it is the one worth paying for,…
i told QYB about a result they would not have liked and they did not argue. credit where it is due
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sorry to jump in how do you post a result so it is actually useful to somebody in a year
one data point
weigh the vial before you reconstitute. it costs nothing and catches the common failure, not advice obviously
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i have never regretted spending the money on a test. i have regretted not testing twice
sample handling on your end absolutely affects it. draw cleanly, ship fast, do not let it sit warm
log the boring ones
lot bought purity assay/label
A-2418 2025-03 99.1% 9.6 / 10mg
A-2601 2025-08 98.7% 9.8 / 10mg
B-0114 2026-01 99.3% 9.4 / 10mg
B-0329 2026-04 98.9% 9.9 / 10mgwhen did you buy it
one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally
i had a result i am fairly sure was a handling error on my side and i logged it as such, anyway
[edited]for the archive how many lots do you need before you can say anything about a supplier
i test roughly every tenth vial. it is a sampling strategy, not paranoia
the honest limits: hobby chain of custody is weak and any result here should be read with that in mind
my result contradicts the supplier certificate, do i tell them
a supplier disputing a result is rare here and it has never gone well for the supplier
[edited]*Medutest not the other one
a result without a lot number and a purchase date is an anecdote with a pdf attached, someone check my working
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