【英文标准名称】:Workplaceair-Determinationofmercuryandinorganicmercurycompounds-Methodbycold-vapouratomicabsorptionspectrometryoratomicfluorescencespectrometry
【原文标准名称】:车间空气.汞和无机汞化合物的测定.低温蒸气原子吸收分光光度测定法或原子荧光分光光度测定法
【标准号】:ISO17733-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-11
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC146
【标准类型】:()
【标准水平】:()
【中文主题词】:工作地点;空气质量;原子吸收分光光度测定法;定义;原子荧光分光光度测定法;气体分析;汞无机化合物;质量浓度;汞;汞化合物;原子吸收光谱测定法;含量测定;化学分析和试验
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesaprocedurefordeterminationofthetime-weightedaveragemassconcentrationofmercuryvapourandinorganicmercurycompoundsinworkplaceair.Mercuryvapouriscollectedonasolidsorbentusingeitheradiffusivebadgeorapumpedsorbenttube.Particulateinorganicmercurycompounds,ifpresent,arecollectedonaquartzfibrefilter.Samplesareanalysedusingeithercoldvapouratomicabsorptionspectrometry(CVAAS)orcoldvapouratomicfluorescencespectrometry(CVAFS)afteraciddissolutionofthemercurycollected.ThisInternationalStandardisapplicabletotheassessmentofpersonalexposuretomercuryvapourand/orparticulateinorganicmercurycompoundsinairforcomparisonwithlong-termorshort-termexposurelimitsformercuryandinorganicmercurycompoundsandforstatic(area)sampling.Thelowerlimitoftheworkingrangeoftheprocedureisthequantificationlimit.Thisisdeterminedbythesamplingandanalysismethodsselectedbytheuser,butitistypicallyintherange0,01μgto0,04μgofmercury(see13.1).Theupperlimitoftheworkingrangeoftheprocedureisdeterminedbythecapacityofthediffusivebadge,sorbenttubeorfilterusedforsamplecollection,butitisatleast30μgofmercury(see13.2).TheconcentrationrangeofmercuryinairforwhichthisInternationalStandardisapplicableisdeterminedinpartbythesamplingmethodselectedbytheuser,butitisalsodependentontheairsamplevolume.Thediffusivebadgemethodisnotapplicabletomeasurementsofmercuryvapourwhenchlorineispresentintheatmosphere,e.g.inchloralkaliworks,butchlorinedoesnotinterferewiththepumpedsorbenttubemethod(see13.11.1).Gaseousorgano-mercurycompoundscouldcauseapositiveinterferenceinthemeasurementofmercuryvapour(see13.11.2).Similarly,particulateorgano-mercurycompoundsandgaseousorgano-mercurycompoundsadsorbedontoairborneparticlescouldcauseapositiveinterferenceinthemeasurementofparticulateinorganicmercurycompounds(see13.11.3).
【中国标准分类号】:C72
【国际标准分类号】:13_040_30
【页数】:51P;A4
【正文语种】:英语