清洗步骤包括放掉旧油,除掉沉积物。
Cleaning steps including let off the old oil, remove sediment.
此法可测定新油及旧油中的烟炱含量,准确性、重复性较好。
The soot content in the field test oils is measured with the fore mentioned method, which shows good accuracy and repeatability on both new and used oils.
本文重点对使用过程中的旧油进行红外光谱测试,分析烟炱对粘度增长的影响。
This paper pay much attention to analyse the soot influence on viscosity increase, based on testing the infrared spectrum of the old being used oil.
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