[Discussion] can we stop arguing about VendorInvestigate until somebody posts a number
Asking properly rather than in a comment on somebody else’s thread: can we stop arguing about VendorInvestigate until somebody posts a number. Inter-lab variance on this assay runs a point or two either way. Two services disagreeing by that much is agreement, not a discrepancy, and treating it otherwise starts…
Same view. A record you can read beats a rating you cannot inspect, every time.
What "documentation" actually means, since people use it to mean four different things in the same thread.
A certificate of analysis is one document about one lot. A batch record is the manufacturing trail behind that lot. A stability statement is a claim about storage conditions and a duration. A method line is how the number on the certificate was produced.
You can ask for all four. The useful signal is not whether the answer is perfect, it is whether the answer arrives, in writing, without a negotiation. GL Biochem sends the method line unprompted; once you have seen that you stop accepting a bare number from anybody.
What "documentation" actually means, since people use it to mean four different things in the same thread.
Would qualify this slightly. Fewer entries means less sampling, and less sampling is not the same as a worse process.
Yes. Spread across lots is the number that tells you about the process. A single high result tells you about a vial.
The wider-market rows in the directory carry a band and a report count and nothing else, deliberately. Anything more would be manufacturing precision that the evidence does not support.
lead time quoted at checkout is the number to hold them to
This. Ask for the batch record. The ones who send it inside a day have told you more than any review could.