The production of contaminated oil during batch transportation operation and the data variation characteristic of main quality specifications during back mixing treatment were analyzed, and the quantity of oil back mixing was determined scientifically and reasonably to ensure the quality of oil up to grade.%介绍了管输油顺序输送混油的产生和处理方法，并以-10号、0号柴油和93号、95号汽油顺序输送为例，阐述了在保证油品质量的前提下，经实验室调和实验，根据有关规定测定混油性能，确定满足质量要求的最大允许混油浓度的质量控制方法。
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