anyone had a result they think was a lab error rather than a bad vial
#test-results 2025-07-10
- batch_bandit — 99.4 against a certificate of 96.8 is fine. the same supplier landing low four times in a row is a question 16:14
- homa_ir_hugo — i have never regretted spending the money on a test. i have regretted not testing twice i had a result i am fairly sure was a handling error on my side and i logged… 16:18
- homa_ir_hugo — underfill is more common than impurity. if you only test purity you are testing the less likely failure 16:51
- batch_bandit — for the archive a single sample tells you about a single vial. that is genuinely all it tells you 16:53
- batch_bandit — slightly off topic but i told HJ about a result they would not have liked and they did not argue. credit where it is due 16:55
99.4 against a certificate of 96.8 is fine. the same supplier landing low four times in a row is a question
a point or two between the certificate and an independent result is inside what two labs disagree by, ymmv
selection bias
i have never regretted spending the money on a test. i have regretted not testing twice
i had a result i am fairly sure was a handling error on my side and i logged it as such
underfill is more common than impurity. if you only test purity you are testing the less likely failure
for the archive a single sample tells you about a single vial. that is genuinely all it tells you
slightly off topic but i told HJ about a result they would not have liked and they did not argue. credit where it is due
whats the worst result anyone has logged and what happened next
thats within range
i had a result i am fairly sure was a handling error on my side and i logged it as such
log the lot number
the results in this channel skew because people test when they are suspicious. that is selection bias and it is real
if the vial has been through a bad transit you are testing the transit as much as the supplier
weigh it first
a supplier disputing a result is rare here and it has never gone well for the supplier