车用柴油凝点测量不确定度评定  

Evaluation of the Uncertainty for Detecting Solidification Point of Automobile Diesel Fuel

作　　者：李永强[1] 郑佳佳[1] 

机构地区：[1]长城汽车股份有限公司技术中心河北省汽车工程技术研究中心,河北保定071000

出　　处：《辽宁化工》2015年第6期634-635,共2页Liaoning Chemical Industry

摘　　要：依据标准方法石油产品凝点测定法对车用柴油凝点进行分析。本文建立了凝点不确定度的数学模型,分析了不确定的来源,讨论了影响凝点测量不确定的各种因素,计算了相对标准不确定度分量、合成标准不确定度和扩展不确定度。结果表明,影响测量不确定度的主要因素为重复性测定。The solidification point of automobile diesel fuel was analyzed based on the standard method.The mathematical model of the uncertainty for detecting solidification point was established, the sources of uncertainty were analyzed, some factors influencing the uncertainty of the test results of solidifying point were discussed. The components of related standard uncertainty, combined standard uncertainty, and expanded uncertainty were calculated. The results show that the main factor to affect the uncertainty is determination of repeatability.

关 键 词：车用柴油 凝点 不确定度 

分 类 号：TE624[石油与天然气工程—油气加工工程]