DIN EN ISO 660:2009 PDF

Scope: This International Standard specifies three methods (two titrimetric and one potentiometric) for the determination 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, therefore, also includes any mineral acids that may be present.

DIN EN ISO 660:2009 Referenced Document

2020 DIN EN ISO 660:2020 Animal and vegetable fats and oils - Determination of acid value and acidity (ISO 660:2020); German version EN ISO 660:2020
1970 DIN EN ISO 660 E:2019-06 Determination of acid value and acidity of animal and vegetable fats and oils (draft)
2019 DIN EN ISO 660 E:2019 Draft Document - Animal and vegetable fats and oils - Determination of acid value and acidity (ISO/DIS 660:2019); German and English version prEN ISO 660:2019
2009 DIN EN ISO 660:2009 Animal and vegetable fats and oils - Determination of acid value and acidity (ISO 660:2009); English version of DIN EN ISO 660:2009-10
0000 DIN EN ISO 660:2008
2005 DIN EN ISO 660:2005 Animal and vegetable fats and oils - Determination of acid value and acidity (ISO 660:1996 + Amd 1:2003); German version EN ISO 660:1999 + A1:2005