ISO 660:2009
Animal and vegetable fats and oils - Determination of acid value and acidity
- Standard No.
- ISO 660:2009
- Release Date
- 2009
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 660:2020
- Latest
- ISO 660:2020
- 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.
ISO 660:2009 Referenced Document
- ISO 3696 Water for analytical laboratory use; Specification and test methods
- ISO 661 Animal and vegetable fats and oils - Preparation of test sample
ISO 660:2009 history
- 2020 ISO 660:2020 Animal and vegetable fats and oils — Determination of acid value and acidity
- 2009 ISO 660:2009 Animal and vegetable fats and oils - Determination of acid value and acidity
- 2003 ISO 660:1996/Amd 1:2003 Animal and vegetable fats and oils - Determination of acid value and acidity; Amendment 1: Precision data for virgin olive oil; Amendment 1
- 1996 ISO 660:1996 Animal and vegetable fats and oils - Determination of acid value and acidity
- 1983 ISO 660:1983 Animal and vegetable fats and oils; Determination of acid value and of acidity
