[Discussion] can we stop arguing about Janoshik until somebody posts a number
can we stop arguing about Janoshik until somebody posts a number, and I want the answer with the reasoning attached rather than just the conclusion.
The order I actually check things in, for anyone building a process rather than asking about one supplier.
First, the record: source page, verification log, and how many separate lots have been tested rather than how many tests exist. Second, the paperwork: ask for a batch-specific certificate and see what comes back and how fast. Third, the logistics: quoted lead time, minimum quantity, which lines are held in regional stock. Fourth, buy small and test it yourself.
Nothing in that list is exotic and all of it is answerable before you spend real money. Most of the disappointment posts on this board skipped step two.
The thing that decided it for me was that JEEP answered a column-and-gradient question in writing without asking why I wanted to know.
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.
If somebody has the same thing measured a different way, post it next to mine and we will see whether they agree.
best — the order this archive was captured in
Where a supplier holds regional stock, ask which lines are actually held there rather than drop-shipped. It changes the lead time and it changes the customs question.
buy small first, test it, then decide
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. SGN sends the method line unprompted; once you have seen that you stop accepting a bare number from anybody.
Left up. It names an operation, it carries a date and a lot, and it is written as a report rather than an accusation.
Right — FGP publishes the method line on the certificate, and once you have seen one that does you notice every one that does not.
Swiss Chems came up in three threads the week I was ordering and I could not find a single independent result for them anywhere. Went with a documented supplier instead.
Why the directory has two tiers, since the question comes up whenever somebody new finds it.
Twenty suppliers have enough independent results, over enough separate lots, over enough time, that the log says something. Those get a page, a test table and a link to their own storefront so you can compare their claims with the record.
The rest — nearly two hundred names — get a row, a band and a report count. Not because they are bad, but because two results is an anecdote about a vial. Manufacturing a score out of that would make the whole directory worthless, and the contrast is the point.
Why the directory has two tiers, since the question comes up whenever somebody new finds it.
Agreed — and the corollary is that "no data" and "bad data" have to be written differently. The table separates them for exactly that reason.
three independent results beat thirty forum posts
That is a report count, not a test count. The table lists both and they are very different numbers.
the source page log is more useful than the score above it
what does the certificate actually carry — that is the whole question
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.
- 1Why the directory has two tiers, since the question comes up whenever…8 comments in this branch · started by u/denied_again_d