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Single comment threadYou are looking at one branch of this COA has no batch number and no date. what am i even looking at — 12 comments in the full submission. View in context.
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c/coa·submitted 8 days ago by u/tuva_aalto

this COA has no batch number and no date. what am i even looking at

Questionbranch of 4 comments

Trying to settle this properly because the thread from last year went in circles. The claim: COA matters. The counter-claim: it is measurement error. Both sides have been asserting it confidently for about 15 months without either producing anything. What would actually settle it is 15 people measuring the same thing…

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This branch

4 comments, started 7 days ago
u/priya_palacios29 points·7 days ago

the counterion is part of the mass you paid for

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u/coa_collectorMOD15 points·7 days ago

Removed a chain here. The rule is one line long and it is not negotiable.

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u/halima_boateng3 points·6 days ago

Cosigning. The batch number is load-bearing information.

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u/mikkel_correia2 points·6 days ago·edited

chromatogram or it did not happen

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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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