“aw” means water activity that is a measure of the free moisture in a food, is the quotient of the water vapor pressure of the substance divided by the vapor pressure of pure water at the same temperature, and is indicated by the symbol aw.
Cal. Health & Safety Code § 113737
Definitions
Added by Stats. 2006, Ch. 23, Sec. 2
Official source: California Legislative Information. Reproduced from public-domain California statutes; confirm against the official source for the current text. Not legal advice.