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一、说明目前炼厂化验室分析汽、煤、柴油等产品的馏程,大都采用人工分馏方法。即取一定量的样品,于蒸馏瓶内加热使之蒸发,测量其蒸馏出的第一点(初馏点)、10％、50％……90％、干点的温度,来分析油品的质量是否符合规定的技术指标,从而指导生产过程的操作和检查产品。由于指示温度采用玻璃管式水银温度计,计量用的是玻璃量筒,这样就需要人用
First, the current refinery laboratory analysis Steam, coal, diesel and other products distillation range, mostly using artificial fractionation method. That is to take a certain amount of sample, heated in a distillation flask to evaporate, measuring the distillation of the first point (initial boiling point), 10%, 50% ... ... 90%, the temperature of the dry point, to analyze the oil Whether the quality meets the stipulated technical indexes, so as to guide the operation of the production process and check the products. As the indication of temperature using glass tube mercury thermometer, the measurement is the use of glass measuring cylinder, so you need to use