安定性是评价轻柴油质量的重要指标之一,安定性差的柴油,在储存过程中主要表现为颜色很快变黑、生成可溶性和不溶性沉渣,从而影响使用性能。我国现行的轻柴油标准中,氧化安定性测定采用SH/T0175馏分燃料油安定性测定法(加速法)。由于该标准检验时间长,操作难度较大,加之目前国内仪器、材料等多方面因素,所以测定结果容易出现偏差。本文通过大量的试验考察了影响测定结果的主要因素,提出减少误差的相应措施。 Stability is one of the most important indexes to evaluate the quality of light diesel oil. The poor stability of diesel oil is mainly manifested in the storage process as soon as the color turns black, the soluble and insoluble sediments are formed, which affects the serviceability. China’s current standard of light diesel oil, oxidation stability was determined using SH / T0175 distillate fuel oil stability test (acceleration method). As the standard test for a long time, the operation more difficult, coupled with the current domestic equipment, materials and many other factors, so the test results prone to bias. In this paper, a large number of tests to examine the main factors that affect the measurement results, put forward the corresponding measures to reduce errors.