[Question] is 98.0% actually fine or am I being sold a rounding error
is 98.0% actually fine or am I being sold a rounding error. That is the headline. The document, the batch and the service are below so you can argue with the method rather than with me.
Numbers, in the order they matter: 98.0%.
Kept a spreadsheet of quoted versus actual lead time across 12 orders. The quoted number held.
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.
I will update this if the picture changes rather than quietly leaving it up.
best — the order this archive was captured in
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.
Sent the same compound from SGN and ERP to Janoshik in the same month. Both came back above the claim on the certificate — mine was 99.0% on a stated 98.5%.
That is a report count, not a test count. The table lists both and they are very different numbers.
registration number, then everything else
Not convinced by the ranking-by-vibe approach here. The community number is derived from reports; your feeling is derived from four posts you remember.
This. Ask for the batch record. The ones who send it inside a day have told you more than any review could.
Top Peptide 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.
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.
reship policy in writing before the order, not after
Cosigning on lot matching. It sounds trivial and it predicts almost everything else about how an operation is run.
Right — HJ publishes the method line on the certificate, and once you have seen one that does you notice every one that does not.
Started buying small deliberately, tested every lot for the first four, then stopped testing every lot because there was nothing to find.
Agreed on buying small first. The cost of a test is small next to the cost of committing to a supplier you have not checked.
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.
Flairing this Vendor rather than Discussion, since it names an operation and reports an order.
Which lane, and what was the quoted lead time at checkout?
Six orders across two years from KP. Same packaging, same paperwork, same lead time. The most boring supplier relationship I have and I mean that as praise.
the interesting column is spread, not maximum
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. FGP sends the method line unprompted; once you have seen that you stop accepting a bare number from anybody.
a claim with no batch number is a marketing document
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.
ask for the batch record before you ask for a discount
Agree.
Would qualify this slightly. Fewer entries means less sampling, and less sampling is not the same as a worse process.
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.
Disagree that reviews are worthless.
Agreed — and the corollary is that "no data" and "bad data" have to be written differently. The table separates them for exactly that reason.
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.
lead time quoted at checkout is the number to hold them to
- 1Lead time and minimum quantity are the two facts people forget to ask for…10 comments in this branch · started by u/noor_cardoso