a suppliers own certificate is a starting point

first order somewhere, so is there anything useful in a suppliers own testing or does everyone skip it, or is that the wrong channel

anyone kept a rotation of suppliers and found it was worth the admin

from the quote log i have never had a problem i could not resolve with WWB, which is a low bar and a lot of suppliers fail it, costs an email to find out

update from 17 months ago: switched suppliers on fill consistency, not on purity, the source file has the log

first order somewhere new i moved once, and it was for stock availability rather than for anything on a certificate, that was a first order

about rotation size a supplier being cheap is not a criticism and a supplier being expensive is not a recommendation

ok that makes sense, the quote tells you a lot

noting for later my supplier list is shorter than it was in 2024 and the ordering is much less stressful for it, no ranking by feel here

fortnight to days

they sent the batch record

the room does not rank suppliers on price. it ranks them on whether what arrives matches what was described

interesting, the trend is interesting