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Is a batch certificate the same claim as a vial certificate?

Asked 28 Dec 2025Modified 7 months agoViewed 1.2k times
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I am comparing a supplier certificate against an independent result on the same lot.

Both of these get recommended confidently by different people, which suggests neither is obviously right.

My constraints are cost, measurement resolution and how much handling I am prepared to do — in roughly that order.

Under what conditions does the answer flip?

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askedunit_math13k1828 Dec 2025
Does this hold at lower concentrations, or does adsorption dominate? – ilaria_bertone 12 days ago
2Worth flagging that this changed in 2025, so older answers on the site are out of date. – e_dziedzic 2 months ago
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