one data point
#test-results 2025-03-18
Tuesday16 messages2 participantstimes are UTC
Highlights from this day
- ten_of_ten — does anyone log the negative results, the boring ones the honest limits: hobby chain of custody is weak and any result here should be read with that in mind 14:04
- ten_of_ten — i told TFC about a result they would not have liked and they did not argue. credit where it is due 14:28
- food_noise_off — whats the worst result anyone has logged and what happened next i told Homopeptide about a result they would not have liked and they did not argue. credit where it is… 15:02
- ten_of_ten — a single sample tells you about a single vial. that is genuinely all it tells you 17:25
does anyone log the negative results, the boring ones
the honest limits: hobby chain of custody is weak and any result here should be read with that in mind
thats within range
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right so i test roughly every tenth vial. it is a sampling strategy, not paranoia
i told TFC about a result they would not have liked and they did not argue. credit where it is due
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underfill is more common than impurity. if you only test purity you are testing the less likely failure
[edited]when did you buy it
test it again
whats the worst result anyone has logged and what happened next
i told Homopeptide about a result they would not have liked and they did not argue. credit where it is due
weigh the vial before you reconstitute. it costs nothing and catches the common failure
do the results in this channel skew because people test when suspicious
attach the pdf
a single sample tells you about a single vial. that is genuinely all it tells you
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selection bias
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 / 10mgis a purity-only test worth the money if underfill is the common failure
a point or two between the certificate and an independent result is inside what two labs disagree by