BS EN 12835-2001 Airtight shutters - Air permeability test《气密百叶窗 透气性试验》.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12835:2001 The Euro

2、pean Standard EN 12835:2000 has the status of a British Standard ICS 91.060.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Airtight shutters Air permeability testThis British Standard, having been prepared under the direction of the Sector Committee for Building and Civil

3、Engineering, was published under the authority of the Standards Committee and comes into effect on 15 January 2001 BSI 01-2001 ISBN 0 580 36890 4 BS EN 12835:2001 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard is the official English language versi

4、on of EN 12835:2000. The UK participation in its preparation was entrusted by Technical Committee B/538, Doors, windows, shutters, hardware and curtain walling, to Subcommittee B/538/3, Domestic shutters and blinds, which has the responsibility to: aid enquirers to understand the text; present to th

5、e 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. A list of organizations represented on this subcommittee can be obtained on reques

6、t 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 “Find” facility of the

7、 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 legal obligations. Summ

8、ary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN12835 November2000 ICS91.060.5

9、0 Englishversion AirtightshuttersAirpermeabilitytest FermeturestanchesEssaidepermabilitlair LuftdichteAbschlssePrfungderLuftdurchlssigkeit ThisEuropeanStandardwasapprovedbyCENon27October2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurop

10、e an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguage

11、madebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,N

12、orway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2000CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN1

13、2835:2000EPage2 EN12835:2000 CONTENTS Page Foreword . 3 1 Scope 3 2 Normativereference 3 3 Termsanddefinitions 4 4 Principle 4 5 Apparatus(seefigure1) 4 6 Testspecimen.5 7 Testmethod 6 7.1 Conditionsoftesting. 6 7.2 Airflowratemeasurement. 6 8 Expressionofresults. 6 9 Testreport. 7 ANNEXA(normative)

14、Pressuresequenceforairpermeabilitytests. 8 ANNEXB(normative)Testingoftherigforairtightness. 9Page3 EN12835:2000 Foreword ThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC33“Doors, windows,shutters,buildinghardwareandcurtainwalling“,thesecretariatofwhichisheldby AFNOR. ThisEuropeanStandar

15、dshallbegiventhestatusofanationalstandard,eitherby publicationofanidenticaltextorbyendorsement,atthelatestbyMay2001,andconflicting nationalstandardsshallbewithdrawnatthelatestbyMay2001. ThisEuropeanStandardhasbeenpreparedunderamandategiventoCENbythe EuropeanCommissionandtheEuropeanFreeTradeAssociati

16、on,andsupportsessential requirementsofEUDirective(s). AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizations ofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium, CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy, Luxembourg,N

17、etherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnited Kingdom. Itispartofaseriesofstandardsdealingwithblindsandshuttersforbuildingsasdefinedin prEN12216:1995. Theadditionalthermalresistanceprovidedbyshutterspositionedinfrontofwindowsinthe closedpositiondependsontheirairpermeabilityinthecon

18、ditionsdefinedbythestandards prENISO100771:1999,thecriteriaofattributionofaclassofairpermeabilitybeing developpedinprEN13125:1998. TheannexesAandBarenormative. 1 Scope ThisEuropeanStandardspecifiesatestmethodfordeterminingtheairpermeabilityof shuttersthatclaimtoconformtoclass5ofthermalresistance“air

19、tightshutters“accordingto standardsprENISO100771:1999andprEN13125:1998,whenallocationcannotbegiven bygeometricalcriteria. 2 Normativereference ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromother publications.Thesenormativereferencesarecitedatappropriateplacesinthetextandthe

20、 publicationsarelistedhereafter.Fordatedreferences,subsequentamendmentstoor revisionsofanyofthesepublicationsapplytothisEuropeanStandardonlywhen incorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). prENISO100771:1999 “Ther

21、malperformanceofwindows,doorsandshutters CalculationofthermaltransmittancePart1:simplifiedmethod (ISO/FDIS100771:1999)“ EN12114:2000 “ThermalperformanceofbuildingsAirpermeabilityofbuilding componentsandbuildingelementsLaboratorytestmethod“Page4 EN12835:2000 prEN12216:1995 “Terminologyanddefinitionsf

22、orblindsandshutters“ prEN13125:1998 “ShuttersandblindsAdditionalthermalresistance ClassificationAttributionofaclasstoaproduct“ 3 Termsanddefinitions ForthepurposesofthisStandard,thetermsanddefinitionsgiveninprEN12216:1995,and EN12114:2000togetherwiththefollowingapply: 3.1 testpressure positivediffer

23、enceofstaticairpressure Pbetweenthetwofacesofthetestspecimen.Itis expressedinpascalsPa. 3.2 positive differenceofpressurepositive thepressureactingontheexternalfaceofthetestspecimenisgreaterthanthatactingon theinternalface. 3.3 airpermeability airflowratecrossingthetestspecimen,underambiantcondition

24、s,expressedinm 3 /handby surfaceareaoftheshutterexpressedinmandforapositivedifferenceofpressureof 10Pa. 3.4 overallsurfacearea areacalculatedfromtheoveralldimensionsofthetestspecimen. 4 Principle TheprincipleofthetestadoptedisspecifiedinEN12114:2000,thetestconditionsbeing simplifiedinordertotakeinto

25、accountthelowdifferenceinpressureinvolvedinthethermal exchangesbetweentheexternalfaceandtheinternalfaceoftheshutters. Thetestconsistsofasetofpositiveairpressuredifferencestepsandmeasurementofthe airflowrateofeachstepwithasuitabledevice.Theairpermeabilityoftheshutteris determinedinclause8. 5 Apparatu

26、s (seefigure1) Thetestapparatusincludes: Anairtightcasingwithanopeninginwhichthetestspecimenisinstalled. Thecasingisinstalledinaclosedroom.Theairtightnessofthecasingischeckedaccording toAnnexB.Thiscasingisalsosufficientlyrigidtowithstandtestpressureswithout sustainingdamagethatcouldinterferewithther

27、esults. Meansofapplyingacontrolleddifferenceofairpressuretothetestspecimen(upto 100Pa).Page5 EN12835:2000 Meansofproducingrapidchangesofairpressuredifferences,withinspecifiedlimits. Anapparatusformeasuringtheairflowrateinthecasingcapableofevaluatingairleakage throughthetestrigtoanaccuracyof+5%inrela

28、tiontothepermittedvaluesoftheclass, calibrationatnormaltemperatureandairpressure(20Cand101,3kPa). Meansofmeasuringcontrolledpressure(range0to100Pa)withanaccuracyof+10%. Key 1Flowmeter 2Blower 3Manometer 4 Testspecimen Figure1Exampleofapparatus (fromEN12114:2000) 6 Testspecimen Thetestspecimenisprovi

29、dedbythemanufacturerinthedimensions Hx L= (1,40m 0,40m)x(1,45m 0,40m)andequippedwithallitsaccessories.Thisincludes thearrangementslaidoutanddescribedforairtightness(designationofairtightness profiles,rebates,etc.).Itismountedintherigusingaframesufficientlyresistanttowithstand testpressures.Theairtig

30、htnessbetweenthetestrigandtheframeshallbeensured. Theinstallationofthetestsampleintherigshallconformtotheinstallationinstructions suppliedbytheapplicantandrespectingtheperipheralgaps,fixedplumbinbothdirections,Page6 EN12835:2000 level,squareandwithoutvisibletwistsorbendsinducedbythefixings.Itshallbe

31、cleanand dry. Thetestsampleshallbeabletofunctionnormally. 7 Testmethod 7.1 Conditionsoftesting Thepreliminarymeasurementsoftheairtemperature,atmosphericpressureandrelative humidityshallbeinaccordancewiththespecificationsinEN12114:2000. Thepressuredifferencestepsare: maximumpressuredifference, p max

32、=50Pa minimumpressuredifference, p min =10Pa Itisthesmallestpressuredifferencemeasurablewithanaccuracyof1Pa. 5intermediatesteps:15Pa,20Pa,25Pa,30Pa,40Pa. 7.2 Airflowratemeasurement Openandcloseallmobilepartsofthecurtaintwicebeforeblockingtheminclosedposition. Apply3airpressurepulsesat56Pa.Theduratio

33、nofpressureincreaseshallnotbeless than1s.Eachpulseshallbemaintainedforatleast3s. Applythentheairpressuredifferenceateachofthesteps:10Pa,15Pa,20Pa,25Pa, 30Pa,40Pa,50Pa.Measureandrecordthevalueofthecorrespondingairflowrates Q m in m 3 /h.Themeasurementiscarriedoutwhentheairpressurehasstabilisedwithami

34、nimum durationof10sperstep. Carryoutthecorrectionsofairtemperature,atmosphericpressure,relativehumidityforthe referenceconditionsasspecifiedinEN12114:2000. 8 Expressionofresults Ateachstepofthepressuredifference,express: a) Q m/s ,theairflowratereducedtothemoftheoverallsurfaceareaSofthetest specimen

35、: Q m/s ,m 3 /h m; b)PlotQ m/s ,againstthecorrespondingpressuredifferenceusingaloglogplot; c)Determinetheflowcoefficient Candtheexponent nfromtheformulae Q m/s = C( P) n andtheirconfidenceintervalsusingthemethodofidentificationgiven inannexBofEN12114:2000(linearregressiontechnique); d)Givethevalueof

36、theairpermeabilityoftheshutterunderapressureof10Pa calculatedfromtheformulae.Page7 EN12835:2000 9 Testreport Thetestreportshallinclude: a)referencetothisstandardandtoEN12114:2000; b)aconcisedescriptionofthetestspecimen,includingatleastthefollowinginformation, checkedbeforethetest: manufacturersnamea

37、ndspecificbrand; width,height,overallarea,typeofmaterialsand,ifapplicable,theirsurfacetreatment; planswithdetailsofthetestspecimenorthereferencetodocumentswhichgivethis information.Thisplanshallshowthepositionofthefixingdevices; otherinformationasappropriates. c)descriptionofthetestconditions,includ

38、ingatleastthefollowing: airtemperatureinthelaboratory; detailsofmountingthetestspecimeninitssurround(inthecasing); maximumandminimumpressuredifferences; testingorganisationanddateoftest, d)graphshowingtheairflowrateasafunctionofpressuredifference; e)theleakagecoefficients Cand nwiththeirconfidenceli

39、mits; f)mentionoftheexistenceofanyleaksfoundduringthetestandoftheirposition; g)theairpermeabilityvalveoftheshutterunderapressureof10Pa.Page8 EN12835:2000 ANNEXA (normative) Pressuresequenceforairpermeabilitytests (Airtightcasing) Page9 EN12835:2000 ANNEXB (normative) Testingoftherigforairtightness T

40、heairtightnessofthecasingshallbeverifiedatleastonceayearbyreplacingthetest specimenbyanairtightpanelandbyfollowingtheproceduredescribedin7.2. Thecasingisconsideredtobeairtightiftheresidualairflowrateremainslessthan 2 / 1 10 P m 3 /hateachpressurestepforanopeningof2m 2 . Accordingly,theairflowratessh

41、allremainlessthanthevaluesgivenbelow. Pressuredifferences(Pa) 10 15 20 25 30 35 40 50 Maximumresidualairflowratesm 3 /h 1 1,2 1,4 1,5 1,7 1,8 2 2,2BS EN 12835:2001 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

42、 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view o

43、n standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 89