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c/coa·submitted 1 year ago by u/aurel_boateng

[Question] Australia — has anyone got a straight answer on purity

Questionbranch of 4 comments

I have had 18 orders now and I keep a table, so here is the honest summary rather than a vibe. Material has been consistent. Communication has not. Shipping has varied by about 40 days on nominally the same lane, which matters more in summer than in February. The independent number came back 96.8% against a claimed…

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4 comments, started 1 year ago
u/fatima_wojcik-34 points·1 year ago

The confident tone is doing a lot of work that the evidence is not.

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u/valeria_girard1 point·1 year ago

post the whole document, not the headline number

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u/cesar_ivaturi1 point·1 year ago

the batch number or it did not happen

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u/alcohol_aversion1 point·1 year ago

redact your own name, not the vendor's batch details

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How to read a certificate of analysis and what it does and does not tell you. Area% versus mass%, identity versus quantity, water content, related substances, acetate counterions, and the difference between a vendor-supplied COA and an independent test on the vial you actually received.

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