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成漆／成焦板试验是柴油机油配方筛选中普遍采用的评定手段，目前正在通过改变试验温度、试验时间等试验条件的方式来改进该试验结果与发动机试验（１Ｈ２，１Ｇ２）的相关性。本文介绍了通过综合几个温度条件下的试验结果，经过归纳、判断来确定清净性优劣的新方式，该方法已取得令人满意的结果。
Into the paint / into the coke board test diesel engine oil formula screening commonly used in the assessment means, is currently changing the test temperature, test time and other test conditions to improve the way the test results and the engine test (1H2, 1G2) correlation. This paper presents a new way to determine the superiority and inferiorness of detergency through summarizing and judging the test results under several temperature conditions. The method has achieved satisfactory results.