Foreword

This standard replaces GB/T 5009.168-2003 “Determination of eicosapentaenoic acid and docosahexaenoic acid in foods”, GB/T 22223-2008 “Determination of total fat, saturated fat, and unsaturated fat in foods - Hydrolytic Extraction-Gas Chromatography”, GB 5413.27-2010 “National food safety standard Determination of fatty acids in foods for infants and young children, milk and milk products”, GB/T 9695.2-2008 “Meat and meat products Determination of fatty acids”, GB/T 17376-2008 “Animal and vegetable fats and oils - Preparation of methyl esters of fatty acids”, GB/T 17377-2008 “Animal and vegetable fats and oils - Analysis by gas chromatography of methyl esters of fatty acids”, SN/T 2922-2011 “Determination of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in foods for export - Gas chromatography”, and NY/T 91-1988 “Determination of erucic acid in the oil of rapeseed - Gas chromatographic method”.

Compared with GB/T 5009.168-2003, major changes of this standard are as follows:

——the name of standard has been revised to “National food safety standard Determination of fatty acids in foods”;

——the internal standard method and normalization method have been added;

——the chromatographic column in original standard has been revised, i.e. glass column has been revised to capillary chromatographic column.