ISO 660:2020
Animal and vegetable fats and oils — Determination of acid value and acidity
- Standard No.
- ISO 660:2020
- Release Date
- 2020
- Published By
- International Organization for Standardization (ISO)
- Latest
- ISO 660:2020
- Scope
- This document specifies three methods (two titrimetric and one potentiometric) for the determination of 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 document is applicable to refined and crude vegetable or animal fats and oils, soap stock fatty acids or technical fatty acids. It does not apply to waxes. Since the methods are completely non-specific, they do not apply to differentiating between mineral acids, free fatty acids and other organic acids. The acid value, therefore, includes any mineral acids that are present. Milk and milk products (or fat coming from milk and milk products) are excluded from the Scope of this document.
ISO 660:2020 Referenced Document
- ISO 1042 Laboratory glassware - One-mark volumetric flasks
- ISO 3696 Water for analytical laboratory use; Specification and test methods
- ISO 385 Laboratory glassware - Burettes
- ISO 661 Animal and vegetable fats and oils - Preparation of test sample
ISO 660:2020 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
