ISO 3960-2007 动植物脂肪和油.过氧化值测定.碘量(可视的)终点测定

标准号：ISO 3960-2007
中文标准名称：动植物脂肪和油.过氧化值测定.碘量(可视的)终点测定
英文标准名称：Animal and vegetable fats and oils - Determination of peroxide value - Iodometric (visual) endpoint determination
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 for the iodometric determination of the peroxide value of animal and vegetable fats and oils with a visual endpoint detection.The peroxide value is a measure of the amount of oxygen chemically bound to an oil or fat as peroxides,particularly hydroperoxides.The method is applicable to all animal and vegetable fats and oils,fatty acids and their mixtures with peroxide values from 0 meq to 30 meq(milliequivalents) of active oxygen per kilogram.It is also applicable to margarines and fat spreads with varying water content.The method is not suitable for milk fats and is not applicable to lecithins.It is to be noted that the peroxide value is a dynamic parameter,whose value is dependent upon the history of the sample.Furthermore,the determination of the peroxide value is a highly empirical procedure and the value obtianed depends on the sample mass.It is stressed that,due to the prescribed sample mass,the peroxide values obtained can be slightly lower than those obtained with a lower sample mass.