GB 17930-2016 includes technical requirements and test methods for gasoline for motor vehicles of state IV (discontinued), V and VI standard. GB 18351-2015 includes technical requirements and test methods for ethanol gasoline for motor vehicles (E10) of state IV (discontinued), V standard. These two standards (current effective technical requirements) divide gasoline into four grades of No.89, No.92, No.95 and No.98 according to research octane number, and both emphasize that enterprises should meet the corresponding technical requirements in the process of manufacturing and marketing of No.98 gasoline. The quality index of 10% distil-off temperature, benzene, aromatic hydrocarbons and olefins of State VI in GB17930-2016 are higher than those of State V in GB 18351-2015. The burning of ethanol gasoline for motor vehicles (E10) is more complete than ordinary gasoline, which can reduce the pollutants emissions in vehicle exhaust.%GB 17930-2016包含国Ⅳ(已废止)、国V和Ⅵ的车用汽油技术要求和试验方法,GB18351-2015包含国Ⅳ(已废止)、国V的车用乙醇汽油(E10)技术要求和试验方法;2个标准(现行有效的技术要求)均按研究法辛烷值分为89号、92号、95号和98号4个牌号,都强调企业有条件生产和销售98号汽油时应符合对应规定的技术要求;GB17930-2016中的国Ⅵ10%馏出温度、苯、芳烃、烯烃等项目质量指标高于GB18351-2015中国V对应项目的质量指标.车用乙醇汽油(E10)燃烧比普通汽油更完全,可降低尾气中的污染物排放.
展开▼
