This International Standard specifies three methods (two titrimetric and one potentiometric) for thedetermination of the acidity in animal and vegetable fats and oils, hereinafter referred to as fats. The acidity is expressed preferably as acid value, or alternatively as acidity calculated conventionally.This International Standard is applicable to refined and crude vegetable or animal fats and oils, soap stock fatty acids or technical fatty acids. The methods are not applicable to waxes.Since the methods are completely non-specific, they cannot be used to differentiate between mineral acids, free fatty acids, and other organic acids. The acid value, theref
DS/EN ISO 660:2009 history
2009DS/EN ISO 660:2009 Animal and vegetable fats and oils - Determination of acid value and acidity