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.
DIN 51375-2-2001由德国标准化学会 DE-DIN 发布于 2001-06。
DIN 51375-2-2001 在中国标准分类中归属于: E30 石油产品综合,在国际标准分类中归属于: 75.100 润滑剂、工业油及相关产品。
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