ASTM D6735-2001(2009) 测量矿物焙烧排气源中的气体氯化物和氟化物的试验方法;撞击器方法

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【英文标准名称】:StandardTestMethodforMeasurementofGaseousChloridesandFluoridesfromMineralCalciningExhaustSources8212;ImpingerMethod
【原文标准名称】:测量矿物焙烧排气源中的气体氯化物和氟化物的试验方法;撞击器方法
【标准号】:ASTMD6735-2001(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【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】:D22.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:analytespiking;gaseouschloridesandfluorides;HCl;HF;hydrochloricacidgas;hydrofluoricacidgas;hydrogenchloride;hydrogenfluoride;impingermethod;mineralcalcining;pairedtrains;Samplingair/atmosphericmaterials/applications;
【摘要】:Thisfield-testmethodprovideschlorideandfluorideconcentrationresultsonadrybasis.Concentrationdataforgaseouschloridesandfluoridesareassumedtobehydrochloricacidgas,andhydrofluoricacidgaswhencalculatingmassemissionrates.MassemissionratesofHClandHFcanbecalculatediftheeffluentvolumetricflowrateisknown.VolumetricflowratescanbecalculatedbyconductingEPAMethods1x2013;4ortheirequivalents.ThisfieldtestmethodprovidesdatahavingbiasandprecisionforHClconsistentwiththevaluesinSection14.Inaddition,thetest-specificbiascanbeassessedforeachtestbyconductingthepost-testqualityassurancecheck.Theprocedureisidentifiedasoptional,andtheperformanceofthisproceduredependsonthetestspecificdataqualityobjectives,andenduseofthedata.Thetest-specificprecisionmaybedeterminedbyconductingpaired-runs.Pairedrunsaidinidentifyingpossiblesuspectdataandprovidebackupintheeventonetrainisinvalidated.Performingpairedrunsdependsonthetest-specificdataqualityobjectives.ThereactionofgaseousHClwithammonia(NH3)toformsolidammoniumchloride(NH4Cl)iswellknown.AtstacktemperaturescommontotheexitsofbaghousesandESPsatmineralcalciningfacilities(thatis,250to450x00B0;For121to232x00B0;C),anequilibrationbetweenthegaseousHCl/NH3,thecondensedNH4Cl(s),andtheeffluentparticulatemattercanexist.Itisimpossibletoknowtheexactpartitionratiobetweenthegasandparticulatephasesofthesecompoundsinthesamplingsystem.Furthermore,itisverydifficulttocontroltheeffectsofthesepartitioningreactionswithinthevarioussamplingsystemcomponents.Note48212;UseofthismethodiscautionedwhentryingtoquantifyHCl(g)inthepresenceofammoniumchlorideandammonia.1.1Thismethodwillmeasuretheconcentrationofgaseoushydrochloricandhydrofluoricacids,andothergaseouschloridesandfluoridesthatpassthroughaparticulatematterfiltermaintainedat177x00B0;C(350x00B0;F).Thismethodisspecificforsamplingcombustioneffluentfrommineralcalciningindustriesandotherstationarysourceswherethereactive/adsorptivenatureoftheparticulatemattermayaffectmeasurements.1.2Thismethodutilizesionchromatographytoquantifytheaqueoussamples,andthusmeasuresonlytheC1-andF-ions.1.3Basedonaone-hoursamplingrun,themethodwillprovideresultsofknownaccuracyandprecisionforchlorideandfluoridein-stackconcentrationsof0.5ppm(v)dryorgreater.Extendingtherundurationandsamplingagreatervolumeofeffluentwillextendtherangetolowerconcentrations.1.4Thismethodincludesoptionalpost-testqualityassuranceprocedurestoassessthebiasofthetestresults,andoptionalpairedsampletrainrunstoassesstheprecisionoftestresults.
【中国标准分类号】:Z15
【国际标准分类号】:71_060_10
【页数】:10P.;A4
【正文语种】:英语