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
Testing of lubricants - Determination of 1,2-ethanediol content of motor oils - Part 2: Gas chromatography
哪些标准引用了DIN 51375-2-2001
找不到引用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 的标准
- 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.