ASTM D6839用气相色谱法测定火花点火发动机燃料中烃类,氧饱和化合物及苯含量的标准试验方法
日期:2012-02-08 11:06
egulations.
This test method is not applicable to M85 and E85 fuels, which contain 85 % methanol and ethanol, respectively.
1. Scope
1.1 This test method covers the quantitative determination of saturates, olefins, aromatics and oxygenates in spark-ignition engine fuels by multidimensional gas chromatography. Each hydrocarbon type can be reported either by carbon number (see Note 1) or as a total.
Note 1There can be an overlap between the C9 and C10 aromatics; however, the total is accurate. Iso
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