[Lab] 18th independent test on HJ — 99.2% on a claimed 99.0%, and the trend is the interesting part
18th independent test on HJ — 99.2% on a claimed 99.0%, and the trend is the interesting part. One vial, one service, one member paying, which is the only kind of result this board should treat as evidence. 99.2% and 99.0%. Those are measured, not estimated, and not rounded up in my favour. My first certificate had a…
Ask what the stability statement was written against — temperature, light, and whether it was the lyophilised powder or the reconstituted solution. Those are three different claims.
Small fix — 214nm, not 280nm. It matters here because the impurity you are asking about barely absorbs at the longer wavelength.
Did you ask for the batch-specific document, or is this the catalogue one?
a total of 0.4% tells you less than four named impurities adding to 0.6%
Yes. The structure of the document matters at least as much as the number printed on it.
Agreed on asking for the storage condition. It is one line and it changes how you read the entire stability claim.
That is the catalogue certificate rather than the batch-specific one. Same layout, completely different status.
Cosigning. The batch identifier is load-bearing, and a certificate that cannot be tied to the vial in your hand is not about your vial.