weigh the vial before you reconstitute. it costs nothing and catches the common failure
#test-results 2026-03-29
Sunday24 messages7 participantstimes are UTC
Highlights from this day
- LC_MS_Lena — is it worth testing if the vial has already been through a warm transit 11:36
- rotterdam_recon — slightly off topic but coming back after 16 months with a follow up result, where do i put it 11:38
- lot_number_lou — has a supplier ever disputed a result posted here 13:11
- tam_logs — does anyone log the negative results, the boring ones 13:13
- lot_number_lou — quantity testing is usually a separate line item and it is the one worth paying for, anyway i had a result i am fairly sure was a handling error on my side and i… 13:58
is it worth testing if the vial has already been through a warm transit
😂11📉3✅2
slightly off topic but coming back after 16 months with a follow up result, where do i put it
✅5🤝11🧪18
thats a fill problem
test it again
whats the lot
do you test every order or sample it
selection bias
update from 22 months ago: retested the same supplier, result came back better, logged both, your mileage will differ
update on the earlier thing how do you separate batch variance from supplier variance
log the lot number
my sheet has 4 lots from CPC with a spread under a point, which is tight
how many lots do you need before you can say anything about a supplier
one data point
💀1❤️12
has a supplier ever disputed a result posted here
📉7
does anyone log the negative results, the boring ones
💀8😂2
anyone tested the same lot twice at different labs
[edited]while im here certificate said 97.4 and the independent came back 98.1, is that a problem
log the boring ones
for the archive a result without a lot number and a purchase date is an anecdote with a pdf attached, ymmv
quantity testing is usually a separate line item and it is the one worth paying for, anyway
i had a result i am fairly sure was a handling error on my side and i logged it as such
🧪5
which lab
i test roughly every tenth vial. it is a sampling strategy, not paranoia
Purity check: no report on file for lot H-2814. Nothing logged either way.