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371METHOD5-DETERMINATIONOFPARTICULATEMATTEREMISSIONSFROMSTATIONARYSOURCESNOTE:Thismethoddoesnotincludeallofthespecifications(e.g.,equipmentandsupplies)andprocedures(e.g.,samplingandanalytical)essentialtoitsperformance.Somematerialisincorporatedbyreferencefromothermethodsinthispart.Therefore,toobtainreliableresults,personsusingthismethodshouldhaveathoroughknowledgeofatleastthefollowingadditionaltestmethods:Method1,Method2,Method3.1.0ScopeandApplication.1.1Analyte.Particulatematter(PM).NoCASnumberassigned.1.2Applicability.ThismethodisapplicableforthedeterminationofPMemissionsfromstationarysources.1.3DataQualityObjectives.Adherencetotherequirementsofthismethodwillenhancethequalityofthedataobtainedfromairpollutantsamplingmethods.2.0SummaryofMethod.Particulatematteriswithdrawnisokineticallyfromthesourceandcollectedonaglassfiberfiltermaintainedatatemperatureof120±14EC(248±25EF)orsuchothertemperatureasspecifiedbyanapplicablesubpartofthestandardsorapprovedbytheAdministratorforaparticularapplication.ThePMmass,whichincludesanymaterialthat372condensesatorabovethefiltrationtemperature,isdeterminedgravimetricallyaftertheremovalofuncombinedwater.3.0Definitions.[Reserved]4.0Interferences.[Reserved]5.0Safety.5.1Disclaimer.Thismethodmayinvolvehazardousmaterials,operations,andequipment.Thistestmethodmaynotaddressallofthesafetyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthistestmethodtoestablishappropriatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortoperformingthistestmethod.6.0EquipmentandSupplies.6.1SampleCollection.Thefollowingitemsarerequiredforsamplecollection:6.1.1SamplingTrain.AschematicofthesamplingtrainusedinthismethodisshowninFigure5-1inSection18.0.CompleteconstructiondetailsaregiveninAPTD-0581(Reference2inSection17.0);commercialmodelsofthistrainarealsoavailable.ForchangesfromAPTD-0581andforallowablemodificationsofthetrainshowninFigure5-1,seethefollowingsubsections.373NOTE:TheoperatingandmaintenanceproceduresforthesamplingtrainaredescribedinAPTD-0576(Reference3inSection17.0).Sincecorrectusageisimportantinobtainingvalidresults,allusersshouldreadAPTD-0576andadopttheoperatingandmaintenanceproceduresoutlinedinit,unlessotherwisespecifiedherein.6.1.1.1ProbeNozzle.Stainlesssteel(316)orglasswithasharp,taperedleadingedge.Theangleoftapershallbe#30E,andthetapershallbeontheoutsidetopreserveaconstantinternaldiameter.Theprobenozzleshallbeofthebutton-hookorelbowdesign,unlessotherwisespecifiedbytheAdministrator.Ifmadeofstainlesssteel,thenozzleshallbeconstructedfromseamlesstubing.Othermaterialsofconstructionmaybeused,subjecttotheapprovaloftheAdministrator.Arangeofnozzlesizessuitableforisokineticsamplingshouldbeavailable.Typicalnozzlesizesrangefrom0.32to1.27cm(1/8to1/2in)insidediameter(ID)inincrementsof0.16cm(1/16in).Largernozzlessizesarealsoavailableifhighervolumesamplingtrainsareused.Eachnozzleshallbecalibrated,accordingtotheproceduresoutlinedinSection10.1.6.1.1.2ProbeLiner.Borosilicateorquartzglasstubingwithaheatingsystemcapableofmaintainingaprobe374gastemperatureduringsamplingof120±14EC(248±25EF),orsuchothertemperatureasspecifiedbyanapplicablesubpartofthestandardsorasapprovedbytheAdministratorforaparticularapplication.Sincetheactualtemperatureattheoutletoftheprobeisnotusuallymonitoredduringsampling,probesconstructedaccordingtoAPTD-0581andutilizingthecalibrationcurvesofAPTD-0576(orcalibratedaccordingtotheprocedureoutlinedinAPTD-0576)willbeconsideredacceptable.Eitherborosilicateorquartzglassprobelinersmaybeusedforstacktemperaturesuptoabout480EC(900EF);quartzglasslinersshallbeusedfortemperaturesbetween480and900EC(900and1,650EF).Bothtypesoflinersmaybeusedathighertemperaturesthanspecifiedforshortperiodsoftime,subjecttotheapprovaloftheAdministrator.Thesofteningtemperatureforborosilicateglassis820EC(1500EF),andforquartzglassitis1500EC(2700EF).Wheneverpractical,everyeffortshouldbemadetouseborosilicateorquartzglassprobeliners.Alternatively,metalliners(e.g.,316stainlesssteel,Incoloy825orothercorrosionresistantmetals)madeofseamlesstubingmaybeused,subjecttotheapprovaloftheAdministrator.6.1.1.3PitotTube.TypeS,asdescribedinSection6.1ofMethod2,orotherdeviceapprovedbythe375Administrator.Thepitottubeshallbeattachedtotheprobe(asshowninFigure5-1)toallowconstantmonitoringofthestackgasvelocity.Theimpact(highpressure)openingplaneofthepitottubeshallbeevenwithorabovethenozzleentryplane(seeMethod2,Figure2-7)duringsampling.TheTypeSpitottubeassemblyshallhaveaknowncoefficient,determinedasoutlinedinSection10.0ofMethod2.6.1.1.4DifferentialPressureGauge.Inclinedmanometerorequivalentdevice(two),asdescribedinSection6.2ofMethod2.Onemanometershallbeusedforvelocityhead()p)readings,andtheother,fororificedifferentialpressurereadings.6.1.1.5FilterHolder.Borosilicateglass,withaglassfritfiltersupportandasiliconerubbergasket.Othermaterialsofconstruction(e.g.,stainlesssteel,Teflon,orViton)maybeused,subjecttotheapprovaloftheAdministrator.Theholderdesignshallprovideapositivesealagainstleakagefromtheoutsideoraroundthefil