1、BRITISH STANDARD BS EN 13211:2001 Air quality Stationary source emissions Manual method of determination of the concentration of total mercury The European Standard EN 13211:2001 has the status of a British Standard ICS 13.040.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW
2、BS EN 13211:2001 This British Standard, having been prepared under the direction of the Health and Environment Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 BSI 07-2001 ISBN 0 580 38188 9 National foreword This British Standard
3、 is the official English language version of EN 13211:20001. The UK participation in its preparation was entrusted by Technical Committee EH/2/, Air quality, to subcommittee EH/2/1, Stationary source emissions, which has the responsibility to: A list of organizations represented on this committee ca
4、n be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the
5、 “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from
6、legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of p
7、ages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 26, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEA
8、NSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13211 January2001 ICS13.040.40 Englishversion AirqualityStationarysourceemissionsManualmethodof determinationoftheconcentrationoftotalmercury QualitdelairEmissionsdesourcesfixesMthode manuellededterminationdelaconcentrationenmercure total LuftqualittEmission
9、enausstationrenQuellen ManuellesVerfahrenzurBestimmungder GesamtquecksilberKonzentration ThisEuropeanStandardwasapprovedbyCENon6January2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutany
10、alteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemb
11、erintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKin
12、gdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN13211:2001EPage2 EN13211:2001 Contents Page Foreword
13、3 1 Scope4 2 Normativereferences 4 3 Termsanddefinitions .4 4 Principle .5 5 Samplingequipment .5 6 Reagents 10 7 Procedure.12 8 Expressionofresults. .18 9 Testreport. .21 AnnexA (informative) Examplesofisokineticandnonisokineticequipment .22 AnnexB (informative) Examplesofimpingersandfrittedbubbler
14、s 24 AnnexC (informative) Precleaningproceduresofthesamplingequipment(atthelaboratory).25Page3 EN13211:2001 Foreword ThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC264“Airquality“,thesecretariatof whichisheldbyDIN . ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbyp
15、ublicationofanidenticaltextor byendorsement,atthelatestbyJuly2001,andconflictingnationalstandardsshallbewithdrawnatthelatestby July2001. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Czech
16、Republic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, SwitzerlandandtheUnitedKingdom.Page4 EN13211:2001 1Scope ThisEuropeanstandardspecifiesamanualreferencemethodforthedeterminationofthemassconcentrationof mercuryinexhaustgasesfrom
17、ductsorchimneys.ThisEuropeanstandardisvalidatedforthedeterminationofthe massconcentrationoftotalmercuryinexhaustgasesfromtheincinerationofwastefortheconcentrationrangeof totalmercuryfrom0,001mg/m 3 to0,5mg/m 3 1 .Themethodmaybeapplicableforexhaustgasesfromother sourceswiththefollowingtypicalcomposit
18、ion: totalsuspendedmatter from0mg/m 3 to20mg/m 3 C x H y from0mg/m 3 to10mg/m 3 HCl from0mg/m 3 to50mg/m 3 HF from0mg/m 3 to10mg/m 3 SO 2 from0mg/m 3 to250mg/m 3 CO from0mg/m 3 to250mg/m 3 NO x from0mg/m 3 to500mg/m 3 CO 2 from0%(volumefraction)to15%(volumefraction) H 2 O(g) from2%(volumefraction)to
19、25%(volumefraction)(actual) O 2 from8%(volumefraction)to15%(volumefraction)(dry,actual) temperature from60Cto140C 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepubl
20、icationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN1483 WaterqualityDeterminat
21、ionofmercury. prEN132841:1998 StationarysourceemissionsDeterminationoflowrangemassconcentrationsofdust Part1:Manualgravimetricmethod. 3 Termsanddefinitions ForthepurposeofthisEuropeanStandard,thefollowingtermsanddefinitionsapply: 3.1 mercury mercuryandmercuryinitscompounds 3.2 totalmercury sumofthem
22、ercuryinexhaustgasindependentfromthestate(gaseous,solvedindroplets,solid,absorbedon particles) 3.3 representativesampling isokinetic,flowequivalentsamplingattherequiredminimumnumberofsamplingpointsinthesamplingplaneas statedintheprEN132841:1998 1 m 3 expressedasm 3 underdryconditions,normalizedto0 C
23、and101,325kPaandat11%(volumefraction)O 2 (unless otherwisestated).Page5 EN13211:2001 3.4 absorber adeviceinwhichgaseousmercury(andmercuryattachedtosmallparticlesthatarenotfiltered)isabsorbedintoan absorptionsolution 3.5 gasdivider,impingersorfrittedbubblers apartintheabsorberbottlewhichdividesthegas
24、streaminsmallbubblesintotheabsorptionliquid 4Principle Asamplestreamoffluegasisextractedrepresentativelyfromaductorchimneyoveracertainperiodoftimewitha controlledflowandknownvolume.Dustinthesampledgasstreamiscollectedonafilterwhereafterthegasstream ispassedthroughaseriesofabsorbers,whichcontainanapp
25、ropriateabsorptionsolutionforcollectinggaseous mercury. Attheendofthesamplingperiodthefilterandabsorptionsolutionarecollectedtobetakentothelaboratory. Thecollecteddustonthefilterisdigestedinsuchawaythatthemercurycontainedinthedustfractionisdissolved inaliquid.Thisliquidisthenanalyzed. Theabsorptions
26、olutionfromtheabsorbersispreparedforanalysisandanalyzed. Thedatafromthesamplingandanalysisarecombinedandtheresultsareexpressedinmilligramsoftotalmercury percubicmeter(mg/m 3 )offluegas. TheanalysisofmercuryisperformedaccordingtoEN1483. 5 Samplingequipment 5.1 Conditionsforisokineticandnonisokinetics
27、ampling Althoughmercuryismainlypresentinthegaseousform,itcanalsobefoundinthedustphaseaswellasin dropletswhichcanbepresentafterwetscrubbers.Thereforeisokineticsamplingisnecessaryinordertocollect dustanddropletscorrectly. Whensamplinghastobeperformedisokineticallythenbothdustanddroplets,aswellasfluega
28、s,shallbesampled inoneandthesameequipment.Thisapproachisnecessary,duetothedelicategaseous/solid/dropletpartitioning ofmercury. NOTE1 Asthetotalmercurycontentistobedetermined,ashiftintheequilibriumwithinasinglesamplingsystemdoesnot influencethemeasurementofthetotalamountofmercury. Ifthesumofthemercur
29、ycontentinthedustphaseanddropletscorrespondstolessthan1 g/m 3 ,thengaseous mercurycanbesamplednonisokinetically. NOTE2 Anestimateoftheamountofmercuryindropletsmaybedeterminedonbasisofthemercurycontentinthewet scrubbersolutionandthedropletcontentinthefluegas. Inthecasethatnodropletsarepresentnonisoki
30、neticsamplingcanalsobeperformedwhentheratiobetweenthe highestandlowestvelocityatanypointinthesamplingplaneislessorequaltoafactorof1,2. 5.2Generalrequirements Thesamplingequipmentconsistsof aprobewithanentrynozzleandatemperaturecontrolledtube; afilterhousingwithafiltersupportandafilter;Page6 EN13211:
31、2001 aseriesofabsorbers; suctionunit(s)withgasmeteringdevice(s)andflowregulator(s). Thefilterhousingmaybelocated: intheductorchimneymounteddirectlybehindtheentrynozzle(instackfiltration); outsidetheductorchimneydirectlybehindthesuctiontube(outstackfiltration). Inthelattercase(outstackfiltration)thef
32、ilterhousingshallbetemperaturecontrolled. NOTE Thefiltercanalsobeplaced semioutstack,intheprobeafterashortpieceofgaspreheatedsuctiontube. 5.3Isokineticsamplingequipment ReferenceismadetoprEN132841:1998forthespecificdetailsabouttherequirementsofthesampling equipment,includingtheequipmentforthedetermi
33、nationandmaintainingofisokineticconditions. Inthispresentstandardonlyspecificrequirementsforthesamplingofmercury(gaseous,dustanddroplets)are stated,additionaltothosespecifiedinprEN132841:1998. NOTE1 ThegeometricaldimensionsofglassnozzleswilldeviatefromthosespecifiedinprEN132841:1998,butthe deviation
34、scanbedecreasedsothattheremainingdifferenceswillnothaveasignificantinfluenceontheresult. Dependinguponthetypeofabsorbersused(see5.5)twodifferentsamplingarrangementsmaybeemployed;aso calledmainstreamarrangementorasidestreamarrangement. Inthemainstreamarrangementallthesampledfluegasispassedthroughthea
35、bsorbers,butinthesidestream arrangementonlyapartofthesampledfluegasispassedthroughtheabsorbers. FiguresofbotharrangementsoftheisokineticsamplingequipmentfortotalmercuryaregiveninAnnexA. Thesamplingprobeshallbetemperaturecontrolled.Ifanoutstackfilterisemployedthenthisshallalsobe temperaturecontrolled
36、. NOTE2 Incasesofwetfluegasescontainingdropletsorsaturatedfluegasesitisadvisedtouseoutstackfiltration. NOTE3 InthecaseofthesidestreamarrangementtheconnectiontotheTpieceandtheTpieceitselfshallbetemperature controlled.Insulationoftheseparts,withoutadditionalheating,isnotallowed. NOTE4 Theheatinputfrom
37、thesampledgasisinsufficienttocompensateforthethermallossesevenwithinsulation. Thepartsoftheequipmentthatareincontactwiththesampledfluegasshallbemadeofspecificmaterialswhich areprescribedin5.9. 5.4Nonisokineticsamplingequipment Ingeneralthenonisokineticsamplingequipmentisassembledaccordingtothemainst
38、reamarrangement. Dependinguponthegasflowemployed,differenttypesofabsorbers(see5.5)maybeused. AfigureofthenonisokineticsamplingequipmentisgiveninAnnexA. Thesamplingprobeshallbetemperaturecontrolled.Ifanoutstackfilterisemployedthenthisshallalsobe temperaturecontrolled. Thepartsoftheequipmentthatareinc
39、ontactwiththesampledfluegasshallbecomposedofspecificmaterials whichareprescribedin5.9.Page7 EN13211:2001 5.5Absorbers Forefficientcollectiontwoabsorbersshallbeplacedinseries. Downstreamoftheseabsorbersanextraemptyabsorbermaybeusedasaliquidtrapandasaprotectionforthe downstreamequipment. Theamountofme
40、rcurycollectedinthesecondabsorbershallcorrespondtolessthan5%ofthetotalamountof mercuryinbothabsorbersorlessthan2 g/m 3 ,whicheveristhegreatest. Impingersorfrittedbubblerscanbeused(figuresofabsorbersarecontainedinAnnexB). NOTE1 Impingershavetheadvantagethattheycanbeemployedunderhighflowrateconditions
41、.Thedisadvantageisthe largeramountof(corrosive)absorptionsolutioncomparedtothatemployedbyfrittedbubblers. NOTE2 Typicalflowratesforimpingersareintherangefrom1m 3 /hto2m 3 /h(17l/minto33l/min). NOTE3 Thisstandardisnotvalidatedforimpingers. NOTE4 Theadvantageoffrittedbubblersisagoodabsorptionefficienc
42、ywithasmalleramountofabsorptionsolutionthan thatemployedbyimpingers.Thedisadvantageisthatnormallyonlyalimitedgasflowratecanbeused(fromabout 0,06m 3 /h(1l/min)toapproximately0,18m 3 /h(3l/min).Ifthesebubblersareusedinisokineticsamplingequipment asecondarysamplingline(asidestreamarrangement)isneeded.
43、5.6Filter 5.6.1 Filtercollectionefficiency ForthefiltercollectionefficiencythesamespecificationsasinprEN132841:1998arerequired.Thisefficiencyshall becertifiedbythesupplier. Thefiltermaterialshallhaveanefficiencyof99,5%onatestaerosolwithamaximumabundanceataparticle diameterof0,3 matthemaximumflowrateanticipated,(or99,9%onatestaerosolof0,6 mmeandiameter), seeprEN132841:1998. 5.6.2 Filtermaterial Thefiltermaybeofanyshape(flat,thimbleor
