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 It supersedes BS 3424-6:1982 which is withdrawn.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
42、ter. 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 inaccur
43、acy 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: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and fo
