液体石蜡中芳烃含量测定法标准修订的思考  

Consideration on Revision of the Standard for Determination of Aromatics in Liquid Paraffin

作　　者：王雪莉 郭士刚 贾未鸣 王少军 张会成 WANG Xue-li;GUO Shi-gang;JIA Wei-ming;WANG Shao-jun;ZHANG Hui-cheng(Sinopec(Dalian)Research Institute of Petroleum and Petrochemicals Co.,Ltd.,Dalian Liaoning 116000,China)

机构地区：[1]中石化(大连)石油化工研究院有限公司,国家石蜡质量检验检测中心,辽宁大连116000

出　　处：《当代化工》2023年第4期1002-1005,共4页Contemporary Chemical Industry

基　　金：中国石化集团公司资助项目,《石油蜡和石油脂滴熔点测定法》国家标准修订(项目编号:国标-092103)。

摘　　要：液体石蜡中芳烃含量是液体石蜡产品的重要技术指标,是指导液体石蜡产品应用和深加工的重要技术参数。我国现行液体石蜡中芳烃含量测定的标准是《液体石蜡中芳烃含量测定法(紫外分光光度法)》(SH/T0409—1992),该标准与国际类似标准相比,缺少详细的试验步骤和样品一次性稀释的参考用量,且精密度中只规定了芳烃质量分数为1%时的允差。为了使分析结果更加准确,针对该标准存在的问题,补充了详细试验步骤,增加了一次性稀释参考用量,规定了全范围的精密度。试验结果表明:该标准经修订后,结果更加准确,能够体现我国标准先进性和严谨性,适应市场需求,增强我国石蜡产品市场竞争力,推动技术进步和创新。The content of aromatics in liquid paraffin is an important technical index of liquid paraffin products and an important technical parameter to guide the application and deep processing of liquid paraffin products.The current standard for the determination of aromatics in liquid paraffin in China is"Determination of Aromatics in Liquid Paraffins(Ultraviolet Spectrophotometry)"(SH/T 0409—1992).Compared with similar international standards,this standard lacks detailed test steps and reference dosage for sample dilution at one time,and only specifies the tolerance when the mass fraction of aromatics is 1%in the precision.To make the analysis results more accurate,aiming at the problems existing in the standard,the detailed test steps were added as well as the one-time dilution reference amount,and the full range of precision was specified.The test results show that the revised standard is more accurate,which can reflect the advance and preciseness of Chinese standards,adapt to the market demand,enhance the market competitiveness of Chinese paraffin products,and promote technological progress and innovation.

关 键 词：液体石蜡 芳烃 标准 修订 

分 类 号：TE626.88[石油与天然气工程—油气加工工程]