[Rosie_1]

Hi, really hoping someone here is an expert on Ethanol Absolute.  I am trying to find a definition on Ethanol Absolute as described in ACS.  Does anyone have a copy? What I am after is the cut-off concentration.  I am almost certain Ethanol has to be 99.5% for it to be called Ethanol Absolute ACS, but what I am not sure of, is whether the % is a dry assay or assay V/V?

Any help would be great!

Thanks, here is the edition number:

ETHANOL, ABSOLUTE, complying with the specifications set out in the
 document published by the American Chemical Society in 1993 and
 known as Reagent Chemicals: American Chemical Society
 Specifications, Eighth Edition

[ATMyller]

Max 2000 ppm of water according to IUPAC

page 860: http://iupac.org/publications/pac/57/6/0855/pdf/