[PSA] Medutest results are area% by default and people keep forgetting
Medutest results are area% by default and people keep forgetting. Two minutes of reading now saves an argument later.
Independent testing is worth more than a supplied certificate for one structural reason: the chain of custody. A member who buys, ships and pays is testing the same thing you would receive.
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.
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 pointless arguments.
Not medical advice, obviously, and nothing here is approved for human use. One person with a spreadsheet.
best — the order this archive was captured in
What a batch record should carry: the lot identifier, the date of analysis, the method including column and gradient, the individual related substances rather than a total, and the storage condition the stability statement was written against.
What a batch record should carry: the lot identifier, the date of analysis, the method including column and gradient, the individual related substance
Adding the practical version: ask for lead time, minimum quantity and the batch record in the same message. Three answers, one email.
Did you ask for the batch-specific certificate, or the generic one?
Regional stock made more difference to my planning than anything else — ordering from a warehouse in Sweden took the customs question off the table entirely.
A certificate with a purity figure and no method line is not falsifiable. You cannot reproduce it, you cannot check it, and it tells you nothing about how the number was produced.
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. KP sends the method line unprompted; once you have seen that you stop accepting a bare number from anybody.
Yes. Spread across lots is the number that tells you about the process. A single high result tells you about a vial.
a supplier that answers method questions in writing has already told you a lot