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据悉,我国在联合研制标准柴油以后,正在酝酿联合研制标准汽油。现在的市售70号或85号等汽油,各厂生产的同一牌号汽油,不仅低热值、粘度、蒸发性能等有一定差别,就是辛烷值也存在着不可忽视的差值,如70号汽油的辛烷值就有70到77之差。这与原油产地、炼制工艺、馏程以及组分配比等都有关。为了对全国汽油机的一切认可性试验有准确好可比性燃料,同时考虑到与国际上汽油性能指标的一致性,研
It is reported that China’s joint development of standard diesel is brewing jointly developed standard gasoline. Now on the market such as 70 or 85 and other gasoline, the same factory production of gasoline, not only low calorific value, viscosity, evaporation and so there is a certain difference, that is, there are octane values can not be ignored differences, such as No. 70 gasoline The octane has a difference of 70 to 77. This is related to the origin of crude oil, refining process, distillation range and composition ratio. In order to test all the national gasoline engine with accurate and comparable fuel, taking into account the consistency with the international gasoline performance indicators, research