NEN NPR ISO/TS 17764-1 : 2003

Defines methods for the quantitative determination of individual fatty acids and of the sum of the fatty acids (elutable fatty acids). It also specifies two methods for preparing the methyl esters of fatty acids of animal and vegetable fats, oils and fatty acid mixtures for raw materials for compound animal feeds, and fatty acids originating from fat extracts of animal feeding stuffs, including fats and fatty acid mixtures containing butyric acid.