Date:   6/16/2007 12:54:20 PM ( 17 y ago)
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URL:   https://www.curezone.org/forums/fm.asp?i=898091

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ACS is higher grade than USP according to the people at ASC and general chemistry websites.

Tolerances for impurities are HIGHER in USP than they are in USP - in other words, they allow more impurities in the USP. The ACS is subject to more tests, and the tests are more rigorous.

Scott
 

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