slightly off topic but underfill is more common than impurity. if you only test purity you are testing the less likely failure, anyway
#test-results 2026-05-25
Monday17 messages5 participantstimes are UTC
Highlights from this day
do you test every order or sample it
how many lots do you need before you can say anything about a supplier
🧊5🎉2
weigh it first
my sheet has 5 lots from MKM with a spread under a point, which is tight
assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem
[edited]one data point
a point or two between the certificate and an independent result is inside what two labs disagree by
coming back to this if the vial has been through a bad transit you are testing the transit as much as the supplier, your mileage will differ
when did you buy it
log the lot number
🙏12
Verification log updated: MKM — evidence added, status unchanged.
👍4🧪2
unrelated but certificate said 99.2 and the independent came back 99.4, is that a problem
test it again
update from 18 months ago: retested the same supplier, result came back better, logged both, i could be wrong
[edited]the honest limits: hobby chain of custody is weak and any result here should be read with that in mind, your mileage will differ