the reship question that gets asked weekly, answered properly
the reship question that gets asked weekly, answered properly, and I am aware this is a minority view on this board. Sent the same compound from BCH and QYB to Medutest in the same month. Both came back above the claim on the certificate — mine was 97.1% on a stated 97.0%. Asked QSC for the batch record on a Tuesday…
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.
This. Ask for the batch record. The ones who send it inside a day have told you more than any review could.
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.
reship policy in writing before the order, not after
Why the directory has two tiers, since the question comes up whenever somebody new finds it.
batch_number_bertie is describing the batch record test and it is the fastest signal available before you spend anything.
the lot on the vial has to match the lot on the certificate, every time
a directory entry is a record, not a recommendation
That reads as a recommendation and the source pages deliberately are not. They are a record you use to make your own decision.