一、汽油为何加上颜色汽油使用至今已有100多年,为什么要加颜色的原因已不可考,但推测应不外乎下列几个理由:①便于区别汽油的等级与质量。早期加油方式是以玻璃桶标识容量,油料以颜色来区别;用桶装容器运送油料也是以颜色来验收其品级,所以,不同油料给予一个颜色代号(Color Code),不但油品加色,管线及储罐也标示相同颜色。 First, why gasoline plus color Gasoline has been used for more than 100 years, why the reason for adding color has not been tested, but speculation should be no more than the following for several reasons: ① easy to distinguish the level and quality of gasoline. Early refueling method is to identify the capacity of the glass barrel, oil to color to distinguish; using tank containers to transport oil is also based on color to accept its grade, therefore, given a different oil color code (Color Code), not only oil color, pipelines And the tank also marked the same color.