【英文标准名称】:Petroleumproductsandhydrocarbonsolvents-Detectionofthiolsandothersulfurspecies-Doctortest
【原文标准名称】:石油产品和烃类溶剂.硫醇类和其他硫类的测定.(博士法试验-定硫醇)
【标准号】:ISO5275-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC28
【标准类型】:()
【标准水平】:()
【中文主题词】:硫醇;硫醇;含硫试验;芳香的;化学的;检测;挥发性的;含量测定;试验;硫化氢;芳烃;挥发物测定;化学分析和试验;组分;化学成分;烃类
【英文主题词】:Aromatic;Aromatichydrocarbons;Cadmiumchlorides;Chemical;Chemicalanalysisandtesting;Chemicalcomposition;Composition;Detection;Determinationofcontent;Doctortests;Hydrocarbons;Hydrogensulphide;Materialstesting;Mercaptans;Testing;Thiols;Volatile;Volatilematterdetermination;Warningnotices
【摘要】:ThisInternationalStandardspecifiesaprocedure(Doctortest)forthedetectionofthiols(mercaptans),hydrogensulfideandelementalsulfurinhydrocarbonsolventsanddistillatepetroleumfeedstocksandproducts.Preliminaryproceduresalsodetectthepresenceofperoxidesandphenolicsubstances,which,whenpresentinmorethantracequantities,maketheapplicationofthisInternationalStandardinappropriate.Carbondisulfide,atrelativelyhighconcentrations[above0,4%(m/m)sulfur],alsointerfereswiththeinterpretationofthetestbycausingdarkeningoftheaqueouslayer.NOTEForthepurposesofthisInternationalStandard,theterm"%(m/m)"isusedtorepresentthemassfractionofamaterial.Thetestisago/no-goprocedurewithathresholdvalueofthiolconcentrationdependentonthematerialundertest.Itisfrequentlyusedasasubstituteforthequantitativedeterminationofthiolcontent.
【中国标准分类号】:G15
【国际标准分类号】:71_080_15;75_080
【页数】:5P.;A4
【正文语种】:英语