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【英文标准名称】:Workplaceair-Determinationofmercuryandinorganicmercurycompounds-Methodbycoldvapouratomicabsorptionspectrometryoratomicfluorescencespectrometry
【原文标准名称】:工作场所空气.汞和无机汞化合物的测定.低温蒸气原子吸收光谱测定法或原子荧光光谱测定法
【标准号】:BSISO17733-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-11-30
【实施或试行日期】:2004-11-30
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;原子吸收光谱测定法;工作地点;空气质量;含量测定;气体分析;汞;质量浓度;原子吸收分光光度测定法;汞化合物;汞无机化合物;化学分析和试验;原子荧光分光光度测定法
【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】:Z15
【国际标准分类号】:13_040_30
【页数】:60P;A4
【正文语种】:英语


【英文标准名称】:ElectricLamps-Tungsten-HalogenLampswithG38Basesand127mmLCL
【原文标准名称】:电灯.带G38型基座和127mmLCL的卤钨灯
【标准号】:ANSIC78.1505-2001
【标准状态】:作废
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸;电灯;卤素灯;灯;作标记;物理性能;试验;卤钨灯
【英文主题词】:Dimensions;Electriclamps;Halogenlamps;Lamps;Marking;Physicalproperties;Tests;Tungsten-halogenlamps
【摘要】:Thisstandarddefinesthedimensionallimitsandotherphysicalcharacteristicsrequiredtoensureinterchangeabilityandassistintheproperapplicationofaspecificcategoryoflamps.Thiscategoryistungsten-halogenlampswithG38basesand127mm(
【中国标准分类号】:K71
【国际标准分类号】:29_140_20
【页数】:
【正文语种】:英语