This International Standard specifies a method for determining the content of free -, -, - and tocopherols and tocotrienols (hereinafter collectively referred to as tocols) in animal and vegetable fats and oils (hereinafter referred to as fats) by high-performance liquid chromatography (HPLC). liquid chromatography). For products containing esters of tocopherols or tocotrienols, it is necessary to carry out preliminary saponification. Milk and milk products (or fat from milk and milk products) are excluded from the scope of this International Standard. NOTE A suitable cold saponification procedure is described in Annex B for information purposes only.
EN ISO 9936:2016 Referenced Document
ISO 3696:1987 Water for analytical laboratory use; Specification and test methods
ISO 5555:2001 Animal and vegetable fats and oils - Sampling
ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results - Part 1: General principles and definitions
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 661:2003 Animal and vegetable fats and oils - Preparation of test sample
EN ISO 9936:2016 history
2016EN ISO 9936:2016 Animal and vegetable fats and oils - Determination of tocopherol and tocotrienol contents by high-performance liquid chromatography
2006EN ISO 9936:2006 Animal and vegetable fats and oils - Determination of tocopherol and tocotrienol contents by high-performance liquid chromatography (Incorporates Amendment A1: 2011)