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【英文标准名称】:StandardPracticeforSelectionofSorbents,Sampling,andThermalDesorptionAnalysisProceduresforVolatileOrganicCompoundsinAir
【原文标准名称】:空气中挥发性有机化合物用吸附剂、取样和热解吸分析方法选择的标准实施规程
【标准号】:ASTMD6196-2003(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D22.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:air;ambientair;diffusivesampling;indoorair;gaschromatographicanalysis;passivesampling;pumpedsampling;volatileorganiccompounds;workplaceair;Airqualityanalysis;Ambientair/atmosphericanalysis;Gaschromatography(GC)--atmosphe
【摘要】:ThispracticeisrecommendedforuseinmeasuringtheconcentrationofVOCsinambient,indoor,andworkplaceatmospheres.Itmayalsobeusedformeasuringemissionsfrommaterialsinsmallorfullscaleenvironmentalchambersformaterialemissiontestingorhumanexposureassessment.SuchmeasurementsinambientairareofimportancebecauseoftheknownroleofVOCsasozoneprecursors,andinsomecases(forexample,benzene),astoxicpollutantsintheirownright.SuchmeasurementsinindoorairareofimportancebecauseoftheassociationofVOCswithairqualityproblemsinindoorenvironments,particularlyinrelationtosickbuildingsyndromeandemissionsfrombuildingmaterials.ManyvolatileorganiccompoundshavethepotentialtocontributetoairqualityproblemsinindoorenvironmentsandinsomecasestoxicVOCsmaybepresentatsuchelevatedconcentrationsinhomeorworkplaceatmospheresastopromptseriousconcernsoverhumanexposureandadversehealtheffects(6).Suchmeasurementsinworkplaceairareofimportancebecauseoftheknowntoxiceffectsofmanysuchcompounds.Inallthreeenvironments,inordertoprotecttheenvironmentasawholeandhumanhealthinparticular,itisnecessarytotakemeasurementsofairqualityaspartofanoverallassessmentinrelationtomandatoryrequirements.Thechoicesofsorbents,samplingmethod,andanalyticalmethodologyaffecttheefficiencyofsorption,recovery,andquantificationofindividualVOCs.Thispracticeispotentiallyeffectiveforawiderangeofvolatileorganiccompoundsfoundinair,overawiderangeofvolatilitiesandconcentrationlevels.However,itistheresponsibilityoftheusertoensurethatthesampling,recovery,analysis,andqualitycontrolforthemeasurementofaspecificVOCofinterestarewithinacceptablelimits.Guidanceforthisevaluationispartofthescopeofthispractice.1.1Thispracticeisintendedtoassistintheselectionofsorbentsandproceduresforthesamplingandanalysisofambient(1),indoor(2)andworkplace(3,4)atmospheresforavarietyofcommonvolatileorganiccompounds(VOCs).Itmayalsobeusedformeasuringemissionsfrommaterialsinsmallorfullscaleenvironmentalchambersorforhumanexposureassessment.1.2AcompletelistingofVOCsforwhichthispracticehasbeentested,atleastoverpartofthemeasurementrange(1.6),isshowninTables1-9.ForothercompoundsthispracticeshallbetestedaccordingtoEN1076(pumped);PracticeD6246,ISO16107,ANSI/ISEA104,EN838orEN13528-1/EN13528-2(diffusive);orotherappropriatevalidationprotocols(Sections13and14).(5,1)1.3ThispracticeisbasedonthesorptionofVOCsfromairontoselectedsorbentsorcombinationsofsorbents.Sampledairiseitherdrawnthroughatubecontainingoneoraseriesofsorbents(pumpedsampling)orallowedtodiffuse,undercontrolledconditions,ontothesorbenttubeortubes(diffusiveorpassivesampling).ThesorbedVOCsaresubsequentlyrecoveredbythermaldesorptionandanalyzedbycapillarygaschromatography.1.4Thispracticeappliestothreebasictypesofsamplersthatarecompatiblewiththermaldesorption:(1)pumpedsorbenttubescontainingoneormoresorbents;(2)axialdiffusivesamplers(typicallyofthesamephysicaldimensionsasstandardpumpedsorbenttubesandcontainingonlyonesorbent);and(3)radialdiffusivesamplers.1.5Thispracticerecommendsanumberofsorbentsthatcanbepackedinsorbenttubes,foruseinthesamplingofawiderangeofdifferentvolatileorganiccompoundsboilingintheran......
【中国标准分类号】:G04
【国际标准分类号】:13_040_20
【页数】:26P.;A4
【正文语种】:英语