DIN 51375-2-2001 润滑剂检验.发动机油乙二醇（１．２）含量测定.气相层析法

标准号：DIN 51375-2-2001
中文标准名称：润滑剂检验.发动机油乙二醇（１．２）含量测定.气相层析法
英文标准名称：Testing of lubricants - Determination of 1,2-ethanediol content of motor oils - Part 2: Gas chromatography
标准类型：E30
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：E30
国际标准分类号：75.100
适用范围：The method established by the document is used to determine the content of 1,2-ethandiol (ethylenglycol) as mass concentration in the range of 200 to 1000 mg/kg in engine oils. For this purpose the sample is dissolved in chloroform containing the internal standard 1,3-propanediol. From this solution the 1,2-ethandiol and the internal standard are extracted by mixing and subsquent shaking with a mixture consisting of equal parts of methanol and water. The mass concentration of 1,2-ethandiol in the sample is then determined by gaschromatography from an aliquote part of the watery phase.