BS EN 13274-3-2001 Respiratory protective devices - Methods of test - Determination of breathing resistance《呼吸保护装置 试验方法 耐呼吸性测定》.pdf

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1、BRITISH STANDARD BS EN 13274-3:2001 Respiratory protective devices Methods of test Part 3: Determination of breathing resistance The European Standard EN 13274-3:2001 has the status of a British Standard ICS 13.340.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 13274-

2、3:2001 This British Standard, having been prepared under the direction of the Health and Environment Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 07 November 2001 BSI 07 November 2001 ISBN 0 580 38618 X National foreword Th

3、is British Standard is the official English language version of EN 13274-3:2001. The UK participation in its preparation was entrusted by Technical Committee PH/4, Respiratory protection, to Subcommittee PH/4/9, Test methods and interpretation, which has the responsibility to: A list of organization

4、s represented on this subcommittee can 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 C

5、orrespondence Index”, or by using the “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 doe

6、s not of itself confer immunity from 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 pr

7、omulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 18, 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 publ

8、ication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN132743 September2001 ICS13.340.30 Englishversion RespiratoryprotectivedevicesMethodsoftestPart3: Determinationofbreathingresistance AppareilsdeprotectionrespiratoireMthodesdessai Partie3:Dterminationdelarsistancerespirato

9、ire AtemschutzgertePrfverfahrenTeil3:Bestimmungdes Atemwiderstandes ThisEuropeanStandardwasapprovedbyCENon17August2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodateli

10、stsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguagea

11、ndnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITT

12、EEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN132743:2001EEN132743:2001(E) 2 Contents page Foreword3 Introduction .4 1

13、Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Prerequisites .4 5 Generaltestrequirements . .5 6 Method1:Staticbreathingresistance. 5 6.1 Principle5 6.2 Equipment.5 6.3 Procedure .5 6.3.1 Ambientconditions .5 6.3.2 Procedureforfilters. 5 6.3.3 Procedureforotherdevices . 6 7 Method2:Dyna

14、micbreathingresistance. 6 7.1 Principle6 7.2 Equipment.7 7.3 Procedure .7 7.3.1 General7 7.3.2 Inhalationresistance . 7 7.3.3 Exhalationresistance . .7 AnnexA (normative) Fittingprocedureforhoodswhichsealaroundtheneckandwhichmayormay notincorporateaheadharness . 13 A.1 Introduction 13 A.2 Principle1

15、3 A.3 Apparatus .13 A.3.1 Sheffielddummyhead/torso .13 A.3.2 Standandelasticstring,forhoodswhichdonotincorporateaheadharness 13 A.3.3 Adjustablecollar . .13 A.4 Procedure .14 AnnexB (normative) TestresultsUncertaintyofmeasurement17 AnnexZA (informative) ClausesofthisEuropeanStandardaddressingessenti

16、alrequirementsorother provisionsofEUDirectives. . 18EN132743:2001(E) 3 Foreword ThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC79,“Respiratoryprotectivedevices“, thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenti

17、caltextor byendorsement,atthelatestbyMarch2002,andconflictingnationalstandardsshallbewithdrawnatthelatestby March2002. ThisEuropeanStandardhasbeenpreparedunderamandategiventoCENbytheEuropeanCommissionandthe EuropeanFreeTradeAssociation,andsupportsessentialrequirementsofEUDirective(s). Forrelationshi

18、pwithEUDirective(s),seeinformativeannexZA,whichisanintegralpartofthisstandard. EN132743isoneofseveralParts,whichareasfollows: Part1:Determinationofinwardleakageandtotalinwardleakage Part2:Practicalperformancetests Part3:Determinationofbreathingresistance Part4: Flametests Part5:Climaticconditions Pa

19、rt6:Determinationofcarbondioxidecontentofinhalationair Part7:Determinationofaerosolpenetrationofparticlefilters Part8:Determinationofdolomitedustcloggingofparticlefilters TheannexesAandBarenormative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countri

20、esareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, SwitzerlandandtheUnitedKingdom.EN132743:2001(E) 4 Introduction ThisEuropeanStandardisintendedasasupplementtothespe

21、cificdevicestandardsforrespiratoryprotective devices.Testmethodsarespecifiedforcompleteorpartsofdevices.Ifdeviationsfromthetestmethodgivenin thisstandardarenecessary,thesedeviationswillbespecifiedintherelevantdevicestandard. 1Scope ThisEuropeanStandardspecifiesthegeneralprocedureformeasurementofbrea

22、thingresistanceoffiltersfor respiratoryprotectivedevicesandrespiratoryprotectivedevicesincorporatingfacepieces,exceptfordivingfor respiratoryprotectivedevices.Therequirementsandanyspecialconditionsfortheapparatus,andoffilter measurementsaredescribedintherelevantdevicestandard. 2 Normativereferences

23、ThisEuropeanStandardincorporates,bydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentsto,orrevisionsofanyofthesepublicationsapplytothisEuropean Standardo

24、nlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN132, RespiratoryprotectivedevicesDefinitions. 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thedefinitionsgiveninEN132apply,togetherwiththefollowin

25、g: 3.1 inhalationresistance flowresistanceofthedeviceduringinhalation 3.2 exhalationresistance flowresistanceofthedeviceduringexhalation 3.3 staticbreathingresistance inhalationresistanceorexhalationresistanceatdefinedconstantflowexpressedasapressuredifference measuredbetweenambientandaspecifiedpoin

26、twithinthedevice 3.4 dynamicbreathingresistance peakinhalationresistanceorpeakexhalationresistanceatadefinedsinusoidalflowexpressedasapressure differencemeasuredbetweenambientandaspecifiedpointwithinthedevice 4Prerequisites InordertoimplementthisEuropeanStandard,atleastthefollowingparametersshallbes

27、pecifiedintherelevant devicestandard: numberofspecimens; specimenpreconditioning;EN132743:2001(E) 5 whichtestmethod(1or2); mountingofthespecimen; preparationofthespecimen; whichflowrates; deviations; numberofrepeattestsperspecimen; sizeoffacepiece; orientationofsupportfordevice; pass/fail criteria.

28、5 Generaltestrequirements Unlessotherwisespecified,thevaluesstatedinthisEuropeanStandardareexpressedasnominalvalues.Exceptfor temperaturelimits,valueswhicharenotstatedasmaximaorminimashallbesubjecttoalimitdeviationof+5%. Unlessotherwisespecified,theambienttemperaturefortestingshallbebetween16Cand32C

29、andthetemperature limitsshallbesubjecttoalimitdeviationof+1C. 6 Method1:Staticbreathingresistance 6.1Principle Thedeviceismountedonasupportasdescribedintherelevantdevicestandard,andairispassedthroughthe deviceataconstantflow. NOTE Theconventionofreportingbreathingresistanceisthatifduringtheinhalatio

30、nresistancetest,thepressureinsidethe facepiecerelativetoatmosphereisnegative,nosignisusedinfrontoftheresult.Iftherelativepressureinsidethefacep ieceis positive,theresultisprefixedwitha+. 6.2Equipment 6.2.1 Pressuregauge,calibratedintheappropriaterangeandwithasensitivitybetterthan10%ofthelimitvalue o

31、fbreathingresistancespecifiedintherelevantdevicestandard. 6.2.2 Flowmeter(s)calibratedintheappropriaterange. 6.2.3 Regulatedblower/compressedairsourceoravariablesuctiondevice. 6.2.4 Supportforthedevice(e.g.filterholder,Sheffielddummyheadwithinsertortorsowithinsert)asdescribed intherelevantdevice sta

32、ndard. 6.3Procedure 6.3.1Ambient conditions Ifambientconditionsdifferfrom23Cand1barabsolute,allflowratesshallbeadjustedsothattheygivethe correctflowratewhencorrectedto23Cand1barabsolute. 6.3.2 Procedureforfilters TwomethodsofpassingairthroughthefilterarepossibleandtypicalexamplesareshowninFigures1a)

33、and1b). Thefirstmethodemploysachamberinwhichthefilterholdingdeviceisfixed(seeFigure1a).AirisdirectedintoEN132743:2001(E) 6 thechamberfromasuitablecontrolledsourceandexitsthroughthefilterandholdersystem.Thepressuredrop acrossthesystemtoambientismeasuredatapressuretappingmountedonthechamberwall.Thesec

34、ond methoddrawsairthroughthefilterholdingdevice(seeFigure1b)andthepressuredropismeasuredbetween ambientandapressureportfittedatasuitablepointbetweenthefilterholdingsystemandtheconnectiontothe suctiondevice. Ensurethatthefilterhasbeenpreconditionedaccordingtothe relevantdevicestandardandthatanequipme

35、nt connectorortheholderintendedbythemanufacturertobeusedisavailable. MountthefilterinaleaktightmannerforhorizontalairflowasindicatedinFigures1a)or1b).Passtheappropriate airflowthroughthefilterholdingsystem.Measureandrecordthepressuredrop, P F ,acrossthefilterholding system Removethefilter.Passthesam

36、eairflowthroughthefilterholdingsystem.Measureandrecordthepressuredrop, P H ,ofthesetup. Reportthebreathingresistanceofthefilterattheflowrateas: P F P H 6.3.3 Procedureforotherdevices Ensurethatthedevicehasbeenpreconditionedaccordingtotherelevantdevicestandard. Fitthedeviceinaleaktightmannerwithoutde

37、formationontheSheffielddummyhead(seeFigure2)ortorso(see Figure3).Closeoffthetubeforexhalationair,andthepressureportontheexhalationtubeshowninFigure3.See alsoFigure4. Forhoodsfittingaroundtheneck,thefittingproceduregiveninannexA(seeFigureA.1)shallbeused. Formeasurementsofinhalationresistance,connectt

38、heinhalationtubetoasuitablesuctiondeviceandthe pressuregaugeconnectionstothepressureportandambientrespectively.Notethe“zero“reading.Switchonand adjustthesuctiondevicetogivetheappropriateflowandnotethepressurereading.Recordthereading,corrected forthe“zero“reading,astheinhalationresistance. Formeasure

39、mentsofexhalationresistance,connecttheexhalationtubetoasuitableblowerandthepressure gaugeconnectionstothepressureportandambientrespectively.Notethe“zero“reading.Withthesupportinone ofthefivedefinedorientations, a) uprightandfacingdirectlyahead; b) facingvertically,upwards; c) facingvertically,downwa

40、rds; d) lyingontheleftside; e) lyingontherightside; switchonandadjusttheblowertogivetheappropriateflowandnotethepressurereading.Recordthereading, correctedforthe“zero“reading,asthebreathingresistanceonexhalationatthatorientation.Repeattheprocedure withthesupportsuccessivelyplacedintheotherorientatio

41、ns.Reportthehighestvalueofthefiveresultsasthe exhalationresistance. 7 Method2:Dynamicbreathingresistance 7.1Principle Thedeviceismountedonasupportasdescribedintherelevantdevicestandardandconnectedtoabreathing machineadjustedtoaspecifiedbreathingminutevolume.EN132743:2001(E) 7 NOTE Theconventionofrep

42、ortingbreathingresistanceisthatifduringtheinhalationresistancetest,thepressureinside thefacepiecerelativetoatmosphereisnegative,nosignisusedinfrontoftheresult.Iftherelativepressureinsidethe facepieceispositive,theresultisprefixedwitha+. 7.2Equipment 7.2.1 Breathingmachineperformingsinusoidalbreathin

43、g. 7.2.2 Supportasdescribedintherelevantdevicestandard,e.g.Sheffielddummyheadwithinsertortorsowith insert(seeFigures2,3and4). 7.2.3 Pressuregauge,calibratedintheappropriaterangeandwithasensitivitybetterthan10%ofthelimitvalue ofbreathingresistancespecifiedintherelevantdevicestandard. Theresponsetimeofthispressuregauge,includingtherecordingdevice,shallbelessthan30ms.foraresponse of10%to90%ofthefullscaledeflectionoftherangeused. 7.3Procedure 7.3.1General Ifambientconditionsdifferfrom23Cand1barabsolute,allflowratesshallbeadjustedsothattheygivethe correctflowratewhencorrectedto23