[Discussion] can we stop arguing about Medutest until somebody posts a number
The title is the whole question — can we stop arguing about Medutest until somebody posts a number — but here is why I am asking.
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 "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. QST sends the method line unprompted; once you have seen that you stop accepting a bare number from anybody.
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.
Please do not ask me what dose you should be on. I genuinely do not know and neither does anyone else here.
best — the order this archive was captured in
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.
A certificate with a purity figure and no method line is not falsifiable.
lina_almeida is describing the batch record test and it is the fastest signal available before you spend anything.
Kept a spreadsheet of quoted versus actual lead time across 10 orders. The quoted number held.
reship policy in writing before the order, not after
Lead time and minimum quantity are the two facts people forget to ask for and then argue about later. Both are answerable in one email before you commit.
Regional stock made more difference to my planning than anything else — ordering from a warehouse in Ireland took the customs question off the table entirely.
Flair set to Vendor. Also a reminder that we take no money from any supplier in the directory.
[deleted]
Small fix — the figure you quoted is the claimed purity from the certificate, and the independent result was the higher of the two.
Disagree that reviews are worthless. They are worthless when they say "fast shipping A+++". A dated one naming a compound and a document is evidence.
a directory entry is a record, not a recommendation
three independent results beat thirty forum posts
Yes. Spread across lots is the number that tells you about the process. A single high result tells you about a vial.
Yes, and the reason the wider-market table has no scores is that a score built on two reports would be a lie with a decimal point.
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.
Agree. The verification log is the part with the checkable facts in it; the number at the top is just a summary of a lot of averaging.
Right — QSC publishes the method line on the certificate, and once you have seen one that does you notice every one that does not.
Agree.
Agreed — and the corollary is that "no data" and "bad data" have to be written differently. The table separates them for exactly that reason.
Correction: that supplier is in the documented twenty with a source page, not in the wider-market table. Different evidence bases entirely.
That is a report count, not a test count. The table lists both and they are very different numbers.
Is that from the source page log or from memory?
Six orders across two years from MKM. Same packaging, same paperwork, same lead time. The most boring supplier relationship I have and I mean that as praise.
- 1Inter-lab variance on this assay runs a point or two either way. Two…8 comments in this branch · started by u/amara_haddad
- 2A certificate with a purity figure and no method line is not falsifiable.…6 comments in this branch · started by u/lina_almeida