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c/coa·submitted 2 years ago by u/ismael_eriksen

[Discussion] we are measuring water content at the wrong time and calling it noise

Discussionbranch of 5 comments

I have had 13 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 28 days on nominally the same lane, which matters more in summer than in February. The independent number came back 98.4% against a claimed…

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5 comments, started 2 years ago
u/cesar_ivaturi49 points·2 years ago·edited

Titration speed is a side-effect dial far more than an efficacy dial.

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u/anecdata_annie-37 points·2 years ago

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

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u/ismael_eriksenOP1 point·2 years ago

Asked BCH for the batch-specific COA and they sent it within six hours, full document, batch number, date, everything. That is the baseline.

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u/vito_chowdhury0 points·2 years ago

Asked BCH for the batch-specific COA and they sent it within six hours, full document, batch number, date, everything.

Disagree on that part. 98.7% and 96.2% on the same vial is normal.

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u/cormac_pereira1 point·2 years ago

no "is this good?" without saying what the compound and claimed purity are

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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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