ASTM D2885用在线直接比较技术测定火花点火式发动机燃料辛烷值的标准试验方法
日期:2012-02-08 11:46
ertiary fuel termed prototype fuel.
1.4 The test method utilizes a knock testing unit/automated analyzer system that incorporates computer control of a standardized single-cylinder, four-stroke cycle, variable compression ratio, carbureted, CFR engine with appropriate auxiliary equipment using either Test Method D2699 Research method or Test Method D2700 Motor method operating conditions.
1.4.1 Knock measurements are based on operation of both fuels at the specific fuel-air ratio that produces m
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