vialroom

#test-results 2025-10-25

Saturday17 messages6 participantstimes are UTC
Highlights from this day
  • nausea_window — has a supplier ever disputed a result posted here i test roughly every tenth vial. it is a sampling strategy, not paranoia 18:13
  • nausea_window — do you test every order or sample it 18:51
  • nausea_window — my read after three years of this: purity is mostly fine across the market and fill consistency is where suppliers differ 18:52
  • escalation_anxiety — weigh the vial before you reconstitute. it costs nothing and catches the common failure 19:06
HM

ok so if you are testing to settle an argument you will not settle it with n of 1

VV

quick one is quantity testing available as a separate thing or bundled

NW

has a supplier ever disputed a result posted here
i test roughly every tenth vial. it is a sampling strategy, not paranoia

HM

a single sample tells you about a single vial. that is genuinely all it tells you

my read after three years of this: purity is mostly fine across the market and fill consistency is where suppliers differ

selection bias

EA

weigh the vial before you reconstitute. it costs nothing and catches the common failure

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 / 10mg
NW

one bad test does not condemn a supplier. one good test does not clear one. both halves get ignored equally

MG

the widest spread in my data is about 2.6 percentage points across five lots from one supplier