WPC 4݊].c-j 75] .I׼Msm @vrK3\8Vm`}/uVhUPCpÉ5>lj'Zp|aӡo]0#3 gnEvG+(˚`̀޹guyn :> HKKP$CQ (hC@iΨ㻧f4N^K+Xվ.<$%0ረfO&+YMV7U< I$lz#Α s>\_N/{ɧ^,jNSfRvYZc2¯)R%W7*ֹʟ :N_7I‹v`?ͦn&U0 %DU.J/x 06 0 D+ 0 0E) AYn dy &@ f ~   0K d" }dyy(dpdy@<nXL 0tNw4*#!>^ _k mm*  `CG TimesX<6X9`(Courier % ,.'       _X2XXX (#(#K(#@ppEMISSIONMEASUREMENTTECHNICALINFORMATIONCENTERL@!GUIDELINEDOCUMENT(#(#K(# (g2,.$ !    X       ,.)       _X2XXX(#(#K(#PreparedbyJonFriday,EmissionMeasurementCenter?(# _EMTIC_Ԁ_GD_Ԅ038  x LTechnicalSupportDivision,_OAQPS_,EPA>(#June30,1992 h (#(#K(#(g2,.$ !    X     'dxd Level 1 Level 2 Level 3 Level 4 Level 5(g2,.$ !    X     ($ (    )  M << deUUXXISDLXX,_ X"XXfAXXfxXXfBXXJC func{ISDL~=~{A~x~B}overC}     ,.(       X2XXXo[X` } 2 p x (#%'0*,.8135@8:<H?AXo(#(#K(# EMTICGD038 @LLLEMTICGuidelineDocumentX X X (#Page  2  ڈ x (#(#K(#(g2,.$ !    X     XXISDLXX),XAXX$0XX$.XX$088XX5$grXX3$xXX$120XX$,XXM$000CX NXX ft 3XX minXXY135XXYft3XX XX 78XXG .XXy 2CXAAXXgrXXWminXXXX2XX1.XXc35.XAXXlbXXhr sfunc{ISDL~=~{{0.088~gr~x~120,000}~{ft^3}over{min}}over{135~ft^3}~=~78.2~{gr}over{min}~=~2.35~{lb}over{hr}}XXCXX_ XXXfAXXfxXXfBXXYISDL func{C~=~{A~x~B}over{ISDL}}XXRequiredXXISampleXXVolumeXXu%X XX 0XX+ .XX] 02XX% gXX xXX 150XX ,XX 000\X-XXft;3XXshrXX/ 20.X[ XX fgXXq YhrXXXX150XXWftN3 ffunc{Required~Sample~Volume~=~{0.02g~x~150,000~{ft^3}over{hr}}over{20~{g}over{hr}}~=~150~ft^3}XXRequiredXXISampleXXVolumeXX$X XX 0XX+ .XX] 04XX% gX -XX mgXXF sLXXq xXX-0XX.XX250XXLXX 3XX .XX1 0XX xXX 10q A A6XiXXfmgXXYLXXXX3333XX7.XXi3XX%LXXXX3XX+.XX]33XX}dscm yfunc{Required~Sample~Volume~=~{0.04g~{mg}over{L}~x~0.250L}over{3.0~x~10^{6}~{mg}over{L}}~=~3333.3~L~=~3.33~dscm}#|w*  `CG TimesXXw PE37XP<6X9`(CourierXx6X@`7X@(L$    X    DDj(*HP LaserJet 4 Plus0(,,,,0(0?*U !    X     _X2XXX__@GuidelineDocument038  @ DescriptionofInStackDetectionLimit  Oneoftheelementsofsuccessfulcompliancetestingistherelationshipbetweentheinstackdetectionlimitofthepollutantandthelevelofthestandard.Obviously,iftheinstackdetectionlimitishigherthanthelevelofthestandard,compliancecannotbedemonstrated.Belowisanequationthatwillhelpdetermineinstackdetectionlimitsandthus,helpthetesterdeterminevariousparametersofthetest,suchassamplingtimeandthesensitivityoftheanalyticaltechniques.  Theequationusedindeterminingtheinstackdetectionlimit(_ISDL_)isasfollows:  QA=zx 0 @Xdddddddd@E$x dv&L$@R (#(#     (#(#o[X` } 2 p x (#%'0*,.8135@8:<H?AXo  where, } _ISDL_ 2 =  Instackdetectionlimit 0    `  } A 2 =  Analyticaldetectionlimit     `  } B 2 =  Amountof_analyte_Ԁanalyzed d    `  } C 2 =  Volumeofstackgassampled ,   Unitsofthe_ISDL_Ԁwillvarywiththetypeofsamplingperformed.Forexample,theanalyticaldetectionlimitforparticulatematterwillhaveunitsofmasswhiletheanalyticaldetectionlimitformethodsthatutilizeanalyticalmethodsotherthangravimetric(i.e.,ion_chromatograph_,gas_chromatograph_)willhaveunitsofmassperunitvolume.  Threeexamplesareprovidedbelowtoillustratebettertheconceptoftheinstackdetectionlimit.Example1 %%   Asamplingtrainforparticulatematter(PM)samplesforthreehoursinastackthathasavolumetricflowrateof120,000_dscfm_.Attheendofthethreehours,thetrainhascollected135_dscf_Ԁofstackgas.TherequiredminimumamountofPMtobecollectedonthefilteris20mg(0.088gr).Whatistheinstackdetectionlimitforthissamplingrun?   Solution +(#-  ,#.  ,     _ QA=zx 0 @Xdddddddd@Ex?dvwL@ (#(#      (#(#  The_ISDL_ԀimpliesthatPMemissionrateslessthan2.35lb/hrcannotbereliablydetected.Thisvaluemaybeloweredbyincreasingthesamplingtime,thusincreasingtheamountofgassampled,orbyacceptingalowerminimumamountofPMonthefilter.  Ideally,the_ISDL_Ԁshouldrangefromafifthtoatenthofthespecifiedstandardorless.Strategiesfordecreasingthe_ISDL_Ԁevenfurtherincludeincreasingsamplingtimesorsamplevolumes,andusingmoresensitiveanalyticaltechniques.Example2    APMsamplingtrainistobeusedtodeterminecomplianceonasourcethathasastack_flowrate_Ԁof2500_dscfm_Ԁ(150,000_dscfh_).ThePMstandardis200g/hrandthe_ISDL_Ԁischosentobetenpercentofthestandardor20g/hr.Whatvolumeofgasshouldbesampledtocollect20mg(0.02g)ofPMinthesamplingtrain? QA=zx 0 @Xdddddddd@Ex d:L@: (#(#     (#(# QA=zx 0 @Xdddddddd@ExdJVL@ (#(#        (#(#  Toobtain20mgofPMinthesamplingtrain,atleast150_dscf_Ԁofstackgasmustbecollected.Ifthesamplingtrainsamplesatarateof0.75_dscfm_,thesamplingtrainwillbe200minutesor3.3hours.Example3󀀀 *(#-   ThespecifiedstandardforCr+6is0.03mg/_dscm_.The_ISDL_ 8,$/ ispredeterminedtobeonetenthofthestandard,0.003mg/_DSCM_(3.0E6mg/L).Thesamplewillbepreparedina250ml(0.25L)flaskandtheion_chromatograph_Ԁusedinthesampleanalysishasadetectionlimitof40_ng_/ml(0.04mg/L).Whatsamplevolumeisrequiredtoobtainan_ISDL_Ԁof0.003mg/L?  0(4    Solution   QA=zx 0 @Xdddddddd@E xd8(L @T (#(#       (#(#  Inorderforthespecified_ISDL_Ԁtobeobtained,atleast3.33_dscm_Ԁofstackgasmustbecollectedinthesamplingtrain.