quantity testing is usually a separate line item and it is the one worth paying for
#test-results 2024-08-16
Friday15 messages4 participantstimes are UTC
Highlights from this day
- area_percent — what interests me is when the gap goes the same direction every time. once is noise, three times is a pattern 21:33
- LC_MS_Lena — 98.1 against a certificate of 97.4 is fine. the same supplier landing low four times in a row is a question 21:55
- area_percent — post the lot, the purchase month, the lab, the number, and what you were expecting. that makes it useful later a supplier disputing a result is rare here and it has… 22:06
- area_percent — the widest spread in my data is about 2.6 percentage points across five lots from one supplier 22:19
- area_percent — my vial assayed under label but the purity was fine, which matters more one bad test does not condemn a supplier. one good test does not clear one. both halves get… 22:54
what interests me is when the gap goes the same direction every time. once is noise, three times is a pattern
🤝3🔥1
anyone tested the same lot twice at different labs
98.1 against a certificate of 97.4 is fine. the same supplier landing low four times in a row is a question
🙏4
post the lot, the purchase month, the lab, the number, and what you were expecting. that makes it useful later
a supplier disputing a result is rare here and it has never gone well for the supplier
📉16
if you are testing to settle an argument you will not settle it with n of 1
the widest spread in my data is about 2.6 percentage points across five lots from one supplier
👀10
nice result
test it again
sample handling on your end absolutely affects it. draw cleanly, ship fast, do not let it sit warm
log the boring ones
which lab
❤️12
my vial assayed under label but the purity was fine, which matters more
one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally
when did you buy it
whats the lot