EN 12332-2-2002 en Rubber- or plastic-coated fabrics Determination of bursting strength Part 2 Hydraulic method《橡胶或塑料涂覆织物脆裂强度的测定 第2部分 静压法》.pdf

1、BRITISH STANDARD BS EN 12332-2:2002 Rubber- or plastic-coated fabrics Determination of bursting strength Part 2: Hydraulic method The European Standard EN 12332-2:2002 has the status of a British Standard ICS 59.080.40 BS EN 12332-2:2002 This British Standard, having been prepared under the directio

2、n of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 29 November 2002 BSI 29 November 2002 ISBN 0 580 40879 5 National foreword This British Standard is the official English language version of EN 1

3、2332-2:2002. It supersedes BS 3424-6:1982 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee TCI/78, Coated fabrics, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross

4、-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of B

5、ritish Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; pre

6、sent to the responsible international/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 pages This document comprises a front cover, an

7、 inside front cover, the EN title page, pages 2 to 8, 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 CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN12332

8、2 November2002 ICS59.080.40 Englishversion RubberorplasticcoatedfabricsDeterminationofbursting strengthPart2:Hydraulicmethod Supportstextilesrevtusdecaoutchoucoudeplastique DterminationdelarsistancelclatementPartie2: Mthodehydraulique MitKautschukoderKunststoffbeschichteteTextilien BestimmungderBers

9、tfestigkeitTeil2:Hydraulisches Verfahren ThisEuropeanStandardwasapprovedbyCENon3August2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferen

10、cesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCen

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

12、OMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN123322:2002EEN123322:2002(E) 2 Contents page Foreword .3 1 Scope4 2 Normativereferences4 3 Prin

13、ciple .4 4 Apparatusandmaterials 4 5 Testspecimens .5 6 Conditioning 5 7 Procedure.6 8 Testreport. .6 Bibliography .8EN123322:2002(E) 3 Foreword Thisdocument(EN123322:2002)hasbeenpreparedbyTechnicalCommitteeCEN /TC 248, “Textilesandtextilesproducts“,thesecretariatofwhichisheldbyBSI. ThisEuropeanStan

14、dardshallbegiventhestatusofanationalstandard,eitherbypublicationofan identicaltextorbyendorsement,atthelatestbyMay2003,andconflictingnationalstandardsshallbe withdrawnatthelatestbyMay2003. EN12332“RubberorplasticcoatedfabricsDeterminationofburstingstrength ”consistsoftwo Parts: Part1:Steelballmethod

15、. Part2:Hydraulicmethod. NOTE Personsusingthisstandardshouldbefamiliarwithnormallaboratorypractice.Thisstandarddoes notpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuser toestablishappropriatesafetyandhealthpracticesandtoensurecompliancewithanynationalre

16、gulatory conditions. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthe followingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta, Netherlands,Norway,Portugal,

17、Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN123322:2002(E) 4 1 Scope ThisPartofthisEuropeanStandardspecifiesamethodfordeterminingtheburstingstrengthof coatedfabricsusingaforcingfluidandadiaphragmmachine. 2 Normativereferences ThisEuropeanstandardincorporatesbydatedorundatedreference,provisionsfrom

18、other publications.Thesenormativereferencesarecitedattheappropriateplacesinthetextandthe publicationsarelistedhereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofany ofthesepublicationsapplytothisEuropeanStandardonlywhenincorporatedinitbyamendmentor revision.Forundatedreferencesthelatest

19、editionofthepublicationreferredtoapplies(including amendments). ENISO2231,RubberorplasticscoatedfabricsStandardatmospheresforconditioningand testing(ISO2231:1989) ENISO22861,RubberorplasticscoatedfabricsDeterminationofrollcharacteristics Part1:Methodsfordeterminationoflength,widthandnetmass(ISO22861

20、:1998) 3Principle Acirculartestspecimenandanunderlyingelasticdiaphragmareclampedaroundtheiredgesover thetopofachamber.Thespecimenisgraduallystretchedintoadomeshapebyforcingfluidintothe chamberataconstantrate.Thepressureofthefluidatfailureofthespecimenandthedistension, measuredintermsoftheheightofthe

21、domearerecorded. 4 Apparatusandmaterials Adiaphragmmachine 1) with: 4.1 Arigidchamberfilledwithfluidandhavingacircularapertureofdiameterequalto,orupto 0,5mmgreaterthanthediameterofthecircularfreearea. 4.1.1 Acircularelasticdiaphragmmountedovertheapertureinthechamber.Thediaphragmand itssealwiththecha

22、mbershallbeabletowithstandpressuresgreaterthantheburststrengthofthe materialbeingassessed.Themodulusofelasticityofthediaphragmshallbeaslowaspossible,a valueof5%ofthemodulusofthetestspecimenisrecommended. 4.1.2 Ameansofclampingthetestspecimenarounditsedge,abovethediaphragmandoverthe apertureinthecham

23、ber,leavingacentralcircularfreeareaofdiameter(1131)mmorpreferably (35,70,5)mm. Thedesignoftheclampingsystemshallensurethatthetestspecimendoesnotslipduringthetest andshallneitherstretchnorcompressthecentralareaofthespecimenasitisclamped. Thefollowinghasbeenfoundtobesuitable;sixconcentricgrooves2,5mma

24、partand1,25mmdeep, cutintothelowerclampingsurfacesothattheridgesbetweenthegroveshave0,5mmradiustops. 1) Oftencalled“Mullentypemachine“.EN123322:2002(E) 5 Theupperringisdividedinto16identicalsegmentseachofwhichisclampedagainstthebodywitha 25mmdiameterscrew.Thesearetightenedwithatorquewrenchtopressthe

25、upperringsegments againstthelowerring,andtoclampthesample.Thecompleteupperringhasaninternaldiameterof 113mmor37,5mm.Theuppersegmentshavegrovesthatinterlockwiththelowerringridges. NOTE Theareascorrespondingtodiametersof113mmand37,5mmare100cm 2 and10cm 2 respectively. 4.1.3 Ameansofpumpingtheadditiona

26、lfluidintothechamberataconstantratetoproducea pressureofupto5000kPa. 4.1.4 Amethodofrecordingthemaximumpressureofthefluidinthechamberduringthetestto 1%ofthemaximumpressurerange. 4.1.5 Amethodofmeasuringdistensionofthetestspecimenintermsoftheheightofthedometo thenearest0,5mm. 4.2 Acuttingdevice,sucha

27、sapressknife,forcuttingtestspecimensofasuitablesizeforthe clampingsystem. 5 Testspecimens 5.1 Atanylocationinthelengthoftheroll,andintheusablewidth(definedinENISO22861), select: Option1:Fiveindividualtestspecimensofasufficientsizetobeclampedfirmlyinthetest machine. Option2:Asingletestspecimenwhichis

28、wideandlongenoughforatleastfiveareastobe clampedandtestedinturn. 5.2 Inthecaseofuncutsheetmaterial,thetestpositionsshallbefromarangeoflocationsacross thefullusablewidthandlengthofthematerialavoidingareasthatarewithin50 mmofany manufacturededge. 6Conditioning 6.1 Conditionthetestspecimensinoneoftheat

29、mospheresdefinedinENISO2231foratleast 16hoursbeforetestingandtestthespecimensinthisatmosphere. 6.2 Iftestsaretobemadeonwettestpieces,donotconditionthembuttotallyimmersethemeither for1h5min,6h15min,or24h15mininanaqueoussolutionofnonionicwettingagentof concentrationnotmorethanavolumefractionof0,1%,wit

30、havolumeratioofapproximately20:1,at temperatureequilibriumwithastandardatmosphereofENISO2231. Rinsebyimmersionintheionisedordistilledwateratthesametemperatureusingaliquorratioof minimum20:1. Removethespecimenandkeepwetuntilreadytotest,thenblotandtestimmediately.EN123322:2002(E) 6 7Procedure 7.1 Ensu

31、rethatthetestmachineisreset,withthediaphragmflatandthemaximumpressure indicatorsettozero. 7.2 Tightlyclamponeofthetestspecimensintothemachine;forstrongmaterialsaveryhigh clampingforceisnecessarywhereaswithweak,thinmaterialscareisrequiredtoavoidcuttinginto thespecimen.Delicatematerialsshallbetestedwi

32、thcottoncanvasringsplacedagainsttheclamping surfacesofthesteelrings.Adiaphragmcorrectionismadeforwhatevermaterialsareusedforthe diaphragm,orareusedtosupportit.Setthedistensionmeasuringdevicetozero. NOTE Forfabricscoatedonbothfaces,anagreementonthefacetobetestedshouldbeachieved; otherwise,itisrecomme

33、ndedtotestbothfacesandindicatethisdeviationinthetestreport.Iftheuncoatedface istheexternalfaceinuse,thetestingauthorityshouldbeespeciallyaskedtotestthematerialwiththeuncoated surfaceoutsideandthisdeviationnotedinthereport. 7.3 Observetheuppersurfaceofthetestspecimenandgraduallyforcefluidintothechamb

34、erata constantrateuntileitherthetestspecimenfailsorthespecifiedmaximumburstpressureisreached. 7.4 Ifpossibleuseafluidflowratewhichreachesthedesiredendpointofthetestinatimeof 30s10s. 7.5 Examinethetestspecimenandrecordthedirectionofthefailure.Ifthefailureoccurrednearto orattheclampededgeofthetestspec

35、imenorthetestspecimenslippedintheclampthendiscard theresultsandrepeatthetestwithanothertestspecimenoratanothertestposition. 7.6 Recordthemaximumpressureofthefluidtothenearest1%ofthemaximumpressurerange andthedistensionofthetestspecimentothenearest0,5mm. 7.7 Releasefluidfromthechamberuntilthediaphrag

36、misflatandremovethetestspecimen. 7.8 Repeattheprocedurein7.1to7.7fortheotherfourtestspecimensortestpositions. 7.9 Calculatethearithmeticmeanofthefivemaximumdistensionstothenearest0,5mm. 7.10 Fullytightentheclampwithoutatestspecimenbutwithanyadditionalsupportingmaterialthat wasusedwiththetestspecimen

37、s.Usingthesamerateoffluidflowthatwasusedinthetesting procedurepumpthetestchamberwithfluiduntilthemeanburstingdistensionofthefivetest specimens,calculatedabove,isreached.Recordthispressureofthefluidatthisdistensionas( P 0 ). 7.11 Calculatethearithmeticmeanofthefivemaximumpressures,recordedforthetests

38、pecimen. Subtractthepressure( P 0 )fromthisvaluetocorrecttheeffectofthemodulusofthediaphragmonthe burststrengthofthetestspecimens. 8 Testreport Includeinthetestreportthefollowingparticulars: a) thedescriptionofthecoatedfabric; b) theconditioningmethodandthetimeofexposure,includewhetherornotthespecim

39、enswere testedwetordry; c) thetestingenvironmentthatthetestswerecarriedoutin; d) thereferencetothismethodEN123322:2002;EN123322:2002(E) 7 e) thediameteroftheexposedareaofthetestspecimen37,5mmor113mm; f) theburstingpressureinkilopascalsasthemeanofthesixresultsobtained; g) theburstingdistensioninmilli

40、metresasthemeanofsixresultsobtained; h) adescriptionofthefailureandthenumberoftestsassociatedwitheach; i) detailsofanydeviationsfromthistestmethod.EN123322:2002(E) 8 Bibliography ENISO22863,RubberorplasticscoatedfabricsDeterminationofrollcharacteristics Part3:Methodfordeterminationofthickness(ISO228

41、63:1998)blankBS EN 12332-2:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Char

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