DIN EN ISO 16931-2009 动植物脂肪和油.采用高效凝胶排阻层析(HPSEC)测定聚合甘油三酸酯含量(ISO 16931-2009);德文版本EN ISO 16931-2009

标准号：DIN EN ISO 16931-2009
中文标准名称：动植物脂肪和油.采用高效凝胶排阻层析(HPSEC)测定聚合甘油三酸酯含量(ISO 16931-2009);德文版本EN ISO 16931-2009
英文标准名称：Animal and vegetable fats and oils - Determination of polymerized triacylglycerols by high-performance size-exclusion chromatography (HPSEC) (ISO 16931:2009); English version of DIN EN ISO 16931:2009-08
标准类型：X14
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：X14
国际标准分类号：67.200.10
引用标准：ISO 661
适用范围：This International Standard specifies a method using high-performance size-exclusion chromatography(HPSEC) to determine the contents, as mass fractions, of polymerized triacylglycerols (PTAGs) in oils and fatswhich contain at least 3 % (from peak areas) of these polymers. PTAGs (strictly speaking dimeric andoligomeric triacylglycerols) are formed during the heating of fats and oils, and thus, the method serves toassess the thermal deterioration of frying fats after use.This method is applicable to frying fats and fats and oils that have been thermally treated, provided that thecontent of PTAGs is at least 3 %. It can also be applied to the determination of polymers in fats for animalfeedstuffs, although in this case, the extraction method used can have an influence on the result.NOTE For further details, see ISO 6492.