when did you buy it
#test-results 2025-08-31
- ema_vs_national — posting my Medutest result on lot A-2601, what do people make of it 15:24
- ema_vs_national — is a purity-only test worth the money if underfill is the common failure 16:06
- dana_titrates — log the boring results too. a channel that only records failures produces a false picture 17:23
- split_shipment — follow up the honest limits: hobby chain of custody is weak and any result here should be read with that in mind 17:32
do you test every order or sample it
quantity testing is usually a separate line item and it is the one worth paying for
weigh the vial before you reconstitute. it costs nothing and catches the common failure, anyway
whats the worst result anyone has logged and what happened next
99.4 against a certificate of 96.8 is fine. the same supplier landing low four times in a row is a question
i test roughly every tenth vial. it is a sampling strategy, not paranoia
a supplier disputing a result is rare here and it has never gone well for the supplier
coming back after 21 months with a follow up result, where do i put it
anyone tested the same lot twice at different labs
*Janoshik not the other one
the results in this channel skew because people test when they are suspicious. that is selection bias and it is real, for what its worth
slightly off topic but how do you post a result so it is actually useful to somebody in a year
sorry to jump in i had a result i am fairly sure was a handling error on my side and i logged it as such
while im here do the results in this channel skew because people test when suspicious
a result without a lot number and a purchase date is an anecdote with a pdf attached
nice result
a point or two between the certificate and an independent result is inside what two labs disagree by
if you are testing to settle an argument you will not settle it with n of 1
how do you separate batch variance from supplier variance
posting my Medutest result on lot A-2601, what do people make of it
is a purity-only test worth the money if underfill is the common failure
update from 24 months ago: retested the same supplier, result came back better, logged both
a single sample tells you about a single vial. that is genuinely all it tells you
whats the lot
my vial assayed under label but the purity was fine, which matters more
attach the pdf
how much does sample handling on my end affect the number
log the lot number
log the boring results too. a channel that only records failures produces a false picture
log the boring ones
follow up the honest limits: hobby chain of custody is weak and any result here should be read with that in mind
thats within range