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T h-'   MXDJXXX 8T!   ? l7DJXdd7ћ  @ PERFORMANCESPECIFICATION9SPECIFICATIONS Z @  ANDTESTPROCEDURESFORGASCHROMATOGRAPHIC@ CONTINUOUSEMISSIONMONITORINGSYSTEMS@,,#INSTATIONARYSOURCES  DXX1.0ScopeandApplication.  r  1.1Applicability.Theserequirementsapplytocontinuousemissionmonitoringsystems(CEMSs)thatusegaschromatography(GC)tomeasuregaseousorganiccompoundemissions.TherequirementsincludeproceduresintendedtoevaluatetheacceptabilityoftheCEMSatthetimeofitsinstallationandwheneverspecifiedinregulationsorpermits.Qualityassuranceproceduresforcalibrating,maintaining,andoperatingtheCEMSproperlyatalltimesarealsogiveninthisprocedure.2.0SummaryofPerformanceSpecification. h Л 2.1Calibrationprecision,calibrationerror,andperformanceaudittestsareconductedtodetermineconformanceoftheCEMSwiththesespecifications.Dailycalibrationandmaintenancerequirementsarealsospecified.3.0Definitions. 0%# Л 3.1GasChromatograph(GC).Thatportionofthesystemthatseparatesanddetectsorganicanalytesandlgeneratesanoutputproportionaltothegasconcentration. TheGCmustbetemperaturecontrolled. 4,%+ Л Note: Thetermtemperaturecontrolledreferstothe Z  abilitytomaintainacertaintemperaturearoundthecolumn.TemperatureprogrammableGCisnotrequiredforthisperformancespecification,aslongasallotherrequirementsforprecision,linearityandaccuracylistedinthisperformancespecificationaremet.ItshouldbenotedthattemperatureprogrammingaGCwillspeeduppeakelution,thusallowingincreasedsamplingfrequency.̛ 3.1.1Column.Analyticalcolumncapableofseparatingtheanalytesofinterest. 3.1.2Detector.Adetectionsystemcapableofdetectingandquantifyingallanalytesofinterest. 3.1.3Integrator.ThatportionofthesystemthatquantifiestheareaunderaparticularsamplepeakgeneratedbytheGC. 3.1.4DataRecorder.Astripchartrecorder,computer,ordigitalrecordercapableofrecordingallreadingswithintheinstrument'scalibrationrange. D  3.2CalibrationPrecision.Theerrorbetweentriplicateinjectionsofeachcalibrationstandard.4.0Interferences.[Reserved] )T#(  5.0Safety. r+%*  Theproceduresrequiredunderthisperformance specificationmayinvolvehazardousmaterials,operations,andequipment.Thisperformancespecificationdoesnotpurporttoaddressallofthesafetyproblemsassociatedwiththeseprocedures.Itistheresponsibilityoftheusertoestablishappropriatesafetyproblemsassociatedwiththeseprocedures.ItistheresponsibilityoftheusertoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicationregulatorylimitationspriortoϜperformingtheseprocedures.TheCEMSusersmanualandmaterialsrecommendedbythereferencemethodshouldbeconsultedforspecificprecautionstobetaken.6.0EquipmentandSupplies. 0 Л 6.1PresurveySampleAnalysisandGCSelection.Determinethepollutantstobemonitoredfromtheapplicableregulationorpermitanddeterminetheapproximateconcentrationofeachpollutant(thisinformationcanbebasedonpastcompliancetestresults).SelectanappropriateGCconfigurationtomeasuretheorganiccompounds.TheGCcomponentsshouldincludeaheatedsampleinjectionloop(orothersampleintroductionsystems),separatorycolumn,temperaturecontrolledoven,anddetector.Ifthesourcechoosesdualcolumnand/ordual 2-&, detectorconfigurations,eachcolumn/detectorisconsideredaseparateinstrumentforthepurposeofthisperformancespecificationandthustheproceduresinthisperformancespecificationshallbecarriedoutoneachsystem.Ifthismethodisappliedinhighlyexplosiveareas,cautionshouldbeexercisedinselectingtheequipmentandmethodofinstallation. 6.2SamplingSystem.Thesamplingsystemshallbeheattracedandmaintainedataminimumof120$Cwithno z  coldspots.Allsystemcomponentsshallbeheated,includingtheprobe,calibrationvalve,samplelines,samplingloop(orsampleintroductionsystem),GCoven,andthedetectorblock(whenappropriateforthetypeofdetectorbeingutilized,e.g.,flameionizationdetector). N 7.0ReagentsandStandards.  Л 7.1CalibrationGases.Obtainthreeconcentrationsofcalibrationgasescertifiedbythemanufacturertobeaccuratetowithin2percentofthevalueonthelabel.AgasdilutionsystemmaybeusedtopreparethecalibrationgasesfromahighconcentrationcertifiedstandardifthegasdilutionsystemmeetstherequirementsspecifiedinTestMethod205,40CFRPart51,AppendixM.TheperformancetestspecifiedinTestMethod205shallberepeated &-&, quarterly,andtheresultsoftheMethod205testshallbeincludedinthereport.Thecalibrationgasconcentrationofeachtargetanalyteshallbeasfollows(measuredconcentrationisbasedonthepresurveyconcentrationdeterminedinSection6.1).̛ NOTE: 󛀀Ifthelowlevelcalibrationgasconcentration .  fallsatorbelowthelimitofdetectionfortheinstrumentforanytargetpollutant,acalibrationgaswithaconcentrationat4to5timesthelimitofdetectionfortheinstrumentmaybesubstitutedforthelowlevelcalibrationgaslistedinSection7.1.1.̛ 7.1.1Lowlevel.4060percentofmeasuredconcentration. 7.1.2Midlevel.90110percentofmeasuredconcentration. 7.1.3Highlevel.140160percentofmeasuredconcentration,orselecthighestexpectedconcentration. 7.2PerformanceAuditGas.AcertifiedEPAauditgasshallbeused,whenpossible.AgasmixturecontainingallthetargetcompoundswithinthecalibrationrangeandcertifiedbyEPAsTraceabilityProtocolforAssayandCertificationofGaseousCalibrationStandardsmaybeusedwhenEPAperformanceauditmaterialsarenotavailable.The 6-&, instrumentrelativeerrorshallbe<10percentofthe Z certifiedvalueoftheauditgas.LXDJXXX8.0SampleCollection,Preservation,Storage,andTransport.   #XDJXXLXDJ2#ԛ 8.1InstallationandMeasurementLocation  @ Specifications.InstalltheCEMsinalocationwherethemeasurementsarerepresentativeofthesourceemissions.Considerotherfactors,suchaseaseofaccessforcalibrationandmaintenancepurposes.Thelocationshouldnotbeclosetoairinleakages.Thesamplinglocationshouldbeatleasttwoequivalentductdiametersdownstreamfromthenearestcontroldevice,pointofpollutantgeneration,orotherpointatwhichachangeinthepollutantconcentrationoremissionrateoccurs.TheϜlocationshouldbeatleast0.5diameterupstreamfromtheexhaustorcontroldevice.Tocalculateequivalentductdiameter,seeSection12.2ofMethod1(40CFRPart60,AppendixA).SamplinglocationsnotconformingtotherequirementsinthissectionmaybeusedifnecessaryuponapprovaloftheAdministrator. 8.2PretestPreparationPeriod.UsingtheproceduresdescribedinMethod18(40CFRPart60,AppendixA),performinitialteststodetermineGCconditionsthatprovidegoodresolutionandminimumanalysistimeforcompoundsof &-&, interest.ResolutioninterferencesthatmayoccurcanbeeliminatedbyappropriateGCcolumnanddetectorchoiceorbyshiftingtheretentiontimesthroughchangesinthecolumnflowrateandtheuseoftemperatureprogramming. 8.37DayCalibrationError(CE)TestPeriod.Atthebeginningofeach24hourperiod,settheinitialinstrumentsetpointsbyconductingamultipointcalibrationforeachcompound.ThemultipointcalibrationshallmeettherequirementsinSection13.3.Throughoutthe24hourperiod,sampleandanalyzethestackgasatthesamplingintervalsprescribedintheregulationorpermit.Attheendofthe24hourperiod,injectthethreecalibrationgasesforeachcompoundintriplicateanddeterminetheaverageinstrumentresponse.DeterminetheCEforeachpollutantateachlevelusingtheequationinSection92.EachCEshallbe<10percent.Repeatthisproceduresix  | moretimesforatotalof7consecutivedays. 8.4PerformanceAuditTestPeriods.Conducttheperformanceauditonceduringtheinitial7dayCEtestandquarterlythereafter.SampleandanalyzetheEPAauditgas(es)(orthegasmixturepreparedbyEPAstraceabilityprotocolifanEPAauditgasisnotavailable)threetimes.Calculatetheaverageinstrumentresponse.Reporttheaudit 2-&, resultsaspartofthereportingrequirementsintheappropriateregulationorpermit(ifusingagasmixture,reportthecertifiedcylinderconcentrationofeachpollutant). 8.5Reporting.Followthereportingrequirementsoftheapplicableregulationorpermit.Ifthereportingrequirementsincludetheresultsofthisperformancespecification,summarizeintabularformtheresultsoftheCEtests.Includealldatasheets,calculations,CEMSdatarecords,performanceauditresults,andcalibrationgasconcentrationsandcertifications.9.0QualityControl.[Reserved] l 10.0CalibrationandStandardization. 0  10.1InitialMultiPointCalibration.AfterinitialstartupoftheGC,afterroutinemaintenanceorrepair,oratleastoncepermonth,conductamultipointcalibrationoftheGCforeachtargetanalyte.ThemultipointcalibrationforeachanalyteshallmeettherequirementsinSection13.3. 10.2DailyCalibration.Onceevery24hours,analyzethemidlevelcalibrationstandardforeachanalyteintriplicate.Calculatetheaverageinstrumentresponseforeachanalyte.Theaverageinstrumentresponseshallnot &-&, varymorethan10percentfromthecertifiedconcentrationvalueofthecylinderforeachanalyte.Ifthedifferencebetweentheanalyzerresponseandthecylinderconcentrationforanytargetcompoundisgreaterthan10percent,immediatelyinspecttheinstrumentmakinganynecessaryϜadjustments,andconductaninitialmultipointcalibrationasdescribedinSection10.1.11.0AnalyticalProcedure.Samplecollectionandanalysis \  areconcurrentforthisPerformanceSpecification(seeSection8.0).12.0CalculationsandDataAnalysis.  Л 12.1Nomenclature.̛-,XX XDX- ` Cm = N averageinstrumentresponse,ppm. 0  ` Ca = N cylindergasvalue,ppm. N  ` F =0 N  N Flowrateofstackgasthroughsamplingsystem,  inLiters/min. N (#N (#  ` n = N Numberofmeasurementpoints. "@   ` r2 = N Coefficientofdetermination. ^$"  ` V =0 N Samplesystemvolume,inLiters,whichisthe "&$ volumeinsidethesampleprobeandtubingleadingfromthestacktothesamplingloop. N (#N (#  ` x = N CEMSresponse. n+%*  ` y = N Actualvalueofcalibrationstandard. 2-&, 1 DX,XX X#-1ӛ 12.2CoefficientofDetermination.Calculater2 Z usinglinearregressionanalysisandtheaverageconcentrationsobtainedatthreecalibrationpointsasshowninEquation91.-@DERB>zx p @Xdddddddd@E. d@p_ .(   (#(#⛰           (#(#   12.3CalibrationErrorDetermination.Determinethepercentcalibrationerror(CE)ateachconcentrationforeachpollutantusingthefollowingequation.̜-.=0\LHzx x p @Xdddddddd@Ew [dM@_    (#(#           (#(#   12.4SamplingSystemTimeConstant(T).̜->?K_OKzx x p %@Xdddddddd@E{# d@_ C#w   (#(#           (#(#  ! ,XXDX!13.0MethodPerformance. '!& Л ` 13.1CalibrationError(CE).TheCEMSmustallowthedeterminationofCEatallthreecalibrationlevels.TheaverageCEMScalibrationresponsemustnotdifferbymore &-&, than10percentofcalibrationgasvalueateachlevelaftereach24hourperiodoftheinitialtest. ` 13.2CalibrationPrecisionandLinearity.Foreachtriplicateinjectionateachconcentrationlevelforeachtargetanalyte,anyoneinjectionshallnotdeviatemorethan5percentfromtheaverageconcentrationmeasuredatthatlevel.Thelinearregressioncurveforeachorganiccompoundatallthreelevelsshallhaveanr20.995(using \  Equation91). ` 13.3MeasurementFrequency.Thesampletobeanalyzedshallflowcontinuouslythroughthesamplingsystem.Thesamplingsystemtimeconstantshallbe<5minutesorthe l samplingfrequencyspecifiedintheapplicableregulation,whicheverisless.UseEquation93todetermineT.Theanalyticalsystemshallbecapableofmeasuringtheeffluentstreamatthefrequencyspecifiedintheappropriateregulationorpermit.14.0PollutionPrevention.[Reserved] ^$" 15.0WasteManagement.[Reserved] "&$ 16.0References.[Reserved] '!& 17.0Tables,Diagrams,Flowcharts,andValidationData. )P#( [Reserved]