ok so my sheet has 8 lots from Homopeptide with a spread under a point, which is tight
#test-results 2025-08-30
Saturday14 messages2 participantstimes are UTC
Highlights from this day
- turnaround_tam — ok so my sheet has 8 lots from Homopeptide with a spread under a point, which is tight 18:39
- turnaround_tam — one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally 19:31
- pinch_not_stretch — a single sample tells you about a single vial. that is genuinely all it tells you, take that with a pinch of salt 19:49
- pinch_not_stretch — post the lot, the purchase month, the lab, the number, and what you were expecting. that makes it useful later 20:21
selection bias
a result without a lot number and a purchase date is an anecdote with a pdf attached
underfill is more common than impurity. if you only test purity you are testing the less likely failure
while im here if you are testing to settle an argument you will not settle it with n of 1
is quantity testing available as a separate thing or bundled
one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally
thats a fill problem
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 / 10mghow do you post a result so it is actually useful to somebody in a year
does anyone log the negative results, the boring ones
a single sample tells you about a single vial. that is genuinely all it tells you, take that with a pinch of salt
test it again
❤️11💀10
the widest spread in my data is about 2.6 percentage points across five lots from one supplier
post the lot, the purchase month, the lab, the number, and what you were expecting. that makes it useful later