Dimethyl ether (DME) for fuels — Determination of impurities — Gas chromatographic method
用于燃料的二甲醚(Dme) - 杂质的测定 - 气相色谱法
发布日期:
2014-11-13
ISO 17196:2014规定了用气相色谱法测定用作燃料的二甲醚中甲醇、CO、CO2、甲酸甲酯、乙基甲醚和C4以下碳氢化合物的试验程序。本程序适用于测定甲醇、CO、CO2、甲酸甲酯、乙基甲醚和C4以下的碳氢化合物的含量,直至ISO 16861中规定的值。
注:该方法的精度已由有限数量的实验室针对有限的样本集和含量水平进行了研究。它允许建立二甲醚的质量规范,但不能被视为符合ISO 4259中常用统计方法的全精度测定。
ISO 17196:2014 specifies a procedure of test for methanol, CO, CO2, methyl formate, ethyl methyl ether, and hydrocarbons up to C4, in DME used as fuel by the gas chromatography method. This procedure is applicable to determine the amount of methanol, CO, CO2, methyl formate, ethyl methyl ether, and hydrocarbons up to C4, up to the value specified in ISO 16861.
NOTE The precision of this method has been studied for a limited set of samples and content levels by a limited number of labs. It allows establishment of a quality specification of DME but cannot be considered as a full precision determination in line with the usual statistical methodology as in ISO 4259.