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1、INTERNATIONA1.STANDARDISO4674-2editionSecond2021-10Rubber-orp1.astics-coatedfabrics一Determinationoftearresistance一煦圾UCpendu1.ummethodSupportstexti1.esrevetusdecaoutchoucoudep1.astique一DeterminationdeIaresistanceaudechirement一Panie2:Methodeaupendu1.eba1.istiqueReferencenumberISO4674-2:2021(E)ISO2021C
2、OPYRIGHTPROTECTEDDOCUMENTISO2021IUirhM*hedbdi1.iUedotherwiseupdhi.or啪UIBndttaeDmkfifiHipB1.andonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥曲ite：图洲跳触OQrgPub1.ishedinSwitzer1.andContentsForewordivIntroductionv2 Scope13 Normativereferences14 Termsanddefinitions15 16 APPaIaatIISandreagents2Samp1.ingan
3、dpreparationoftestpieces26.1 Samp1.ing26.2 Testpieces36.2.2Shnpberaof1.tffipi三ies)s37 6.3Pretreatmentforwettest58 Time-interva1.betweenmanufactureandtesting5Atmosphereforconditioningandtesting.51.1 Forconditioning59 8.2Fortesting510 Procedure5UExpressionofresu1.ts6IeeStreport6AnnexA(normative)Adjust
4、mentandca1.ibration7Bib1.iography8ForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsttiugh(ISOmrtmiw)bMdniK盟RAucekdHpfff1.QbbGgbodyIcommitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andn
5、on-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare蜩则搬OfISO1.EC(陶曲俺奥城槐侬阳靛蜘酶麻插蝴伽邮r
6、%cordancetheeditoria1.ru1.esoftheISO/IECDirectives.Part2(seewww.iso.org/direc1.ives).RMonrights.dE小脚蝴橱卿SnSi嘏趣出即的植般眈doc1.三梯眶牌甲辰subjectofanypatentrightsidentifiedduringthedeve1.opmerUW4iouwMM41.beintheIntroductionand/orontheISO1.istofpatentdec1.arationsreceived(seewww.iso.org/patents).Anytradeusedinth
7、isconstitutenameendorsement,documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsandU明泉加OrRan里幅5悯SaSS忠!S窿inwJ憎ftknBar丽?FMdead区es般ww.isO.orgiso/forewordhtm1.tteefor耀三三瀛幽脑&燃蝴搬鹘嘘三翻螺三耀withthegreementontechnica1.cooperat
8、ionbetueenISOandCEN(ViennaAgreement).的feds曲用印e1.11t1iiMWft4Rf1.dwi(rt4Ws面代函VW*法1998),whichhasbeentechnica1.1.yinC1.ause5,thetit1.ehasbeenchangedtoApparatusandreagents*and5,3,5.4rand5.5havebeenadded；inC1.ause6,thetit1.ehasbeenchangedtoSamp1.ingandpreparationoftestpieces*andC1.ause5hasbeenintegrated;i
9、nIase7.thetestdurationhasbeenspecified;inC1.ause8,thetit1.ehasbeenchangedtoAtmosphereforConditioningandtesting*and8.2hasbeenadded;thewettesthasbeenspecified.A1.istofa1.1.partsintheISO4674seriescanbefoundontheISOwebsite.A5WMFf1.EM6&出fifts1.JBHiesthisca1.iHgeHftHEShOuWWwj临图memberynationa1.standardsbod
10、y.AIntroductionTearingisamongstthemoreusua1.waysofdestructionformanythinmateria1.ssuchaspaper,coatedorofhnhattfxi-texti1.es,thriresbsinmitontier.Know1.edgeoftheresistanceofthesemateria1.stothistypeInpractice,tearingcanresu1.tfromverydifferentcircumstances;hencethe1.argenumberoftestmethodsthathavebee
11、ndeve1.opedinordertopredictthebehaviourofmateria1.sinvarioussituations.TheISO4674seriesdea1.swithinitiatedtearing,i.e.thepropagationofatearfromaninitiatingcut.itconsistsofthefo1.1.owingtwoparts：Part1:ConstantrateoftearmethodsPart2:Ba1.1.isticpendu1.ummethodISO4674-1describestwomethodsusingatensi1.e-
12、testingmachineatconstantrateofe1.ongation.Thisdocumentdescribesadynamicmethodusingthekineticenergjrofafa1.1.ingpendu1.um.Othermethods,e.g.the“woundedbursttes1.,areunderconsiderationaspossib1.efurtherparts.Rubber-orp1.astics-coatedfabricsDeterminationoftearresistanceBa1.1.isticpendu1.ummethodWARNING-
13、Personsusingthisdocumentshou1.dbefami1.iarwith1.aboratorypractice.Thisdocumentdoesnotpurporttoaddressa1.1.ofthesafetyprob1.ems,ifany,associatedwithitsuse.Itistheresponsibi1.ityoftheusertoestab1.ishappropriatesafetyandhea1.thpracticesandtoensurecomp1.iancewithanynationa1.regu1.atoryconditions.1 Scope
14、activeforceapp1.iedtoanotchedtestpiece.testpiecesthathavebeenconditionedinastandardatmosphere;orconstantrateobtainedbythismethodcannotbecomparedwiththoseobtainedbymethodsinvo1.ving2 Normativereferencesconstitutesrequirements1.atesteditiondocument.referencedreferencesjinc1.udingamendrnents)app1.ies.a
15、pp1.ies.determinationofp1.astics-coatedunit/abricsDeterminationarearo1.1.characteristicsPar1.umtMethods3 TermsanddefinitionsISOandIECmaintaintermino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses:E1.ectropedia:avai1.ab1.eat4ttpwww.eJeeFopediorgofsuddenosci1.1.ationenab1.esnotchedtestp
16、iece.ThiSmeaSUred.generatedbyapendu1.um.Theamp1.itudePart2:ThisdocumentspecifiesamethodforthedeterminationoftearresistancebasedontheactionofanThetestcanbecarriedouton：一testpiecesthathaveundergonepre-treatment,e.g.waterimmersion.Theresu1.tsoftear.Thefo1.1.owingdocumentsarereferredtointhetextinsuchawa
17、ythatsomeora1.1.oftheircontentundatedreferences,theofthisOftheFordateddocumenton1.ytheanyeditioncitedForISO2231:1989.Rubber-Orp1.astics-Coatedfabrics-Standardatmospheresforconditioningandtestingfor2286-2,Rubber-ormassperarea,massperunitofofcoatingandmassper2:areaoSOsubstrateNotermsanddefinitionsare1
18、.istedinthisdocument.ISOOn1.inebrowsingp1.atform：avai1.ab1.eathttps:/www.iso.org/obp4 IECPrincipIeAthefirstforceapp1.iedtotearingforcetobeforceis5 Apparatusandreagents5.1ofgravity.S.1.1.meansfittedthreadedbo1.tsandpositionedtopreventanymovementduringthetest,e.g.bysecuringitby5.1.2possibi1.ityofsever
19、a1.measuringsca1.es.S.1.35.1.4perpendicu1.arpendu1.ump1.aneitsstartingofposition,pendu1.um.c1.ampingjawsfacesofthea1.ignedthatthesamep1.ane,axisofthependu1.umsha1.1.makeanang1.eof27,500,5totheperpendicu1.ar.beenc1.ampingfacessuitab1.e.critica1.Awidthof30mmto40mmandaheightof15mmto20mmhaveS.1.S5.25.35
20、.45.5 Wettingagentorsurfactant.6 Samp1.ingandpreparationoftestpieces6.1 Samp1.ingTestmachineofthependu1.umtype,inwhichthetestpieceishe1.dbetweentwojaws,onemovab1.eandtheotherfixed,thec1.ampingfacesofwhichsha1.1.beinthesamep1.anewhentheapparatusisinitsstartingposition.Themoringjawisattachedtoapendu1.
21、umwhichcanfa1.1.undertheinf1.uenceRigidframework,supportingthependu1.umandthefixedjaw,aswe1.1.astheknifeandmeasuringdevice.itisofwith1.eve1.onarigidtab1.e.Pendu1.umfreehorizonta1.bearingmeansfbrho1.dingpendu1.umiDrasedStartiDgpositionpendu1.ummaybea1.teredbyaddingadditiona1.massesorbyexchangingpendu
22、1.ums,thusgivingtheMechanica1.ore1.ectronicdevice,fordeterminingthemaximumamp1.itudeofthefirstswing,andthus,theenergyusedtotearthetestpiece.Thereadingmaybegivendirect1.yintermsoftearingforce.Movab1.ejaw,integra1.withthependu1.um,andfixedJawrintegra1.withtheframework.Thesejawssha1.1.be2.8mm0.3mmapart
23、inordertopermitthepassageoftheknife.WhenthetotheisinofswingthetheThesha1.1.beSojaWSsha1.1.beintestpiece1.iesinavertica1.p1.anepara1.1.e1.totheaxisofthependu1.um.Thedistancebetweenthedamping1.ineofthejawsandthependu1.umaxissha1.1.be104mm1mm.Thep1.anecontainingthec1.amping1.ineandI1.wThesurfacestateof
24、thec1.ampingfacesandtheforceapp1.iedtothejawssha1.1.pennitthetestpiecestobehe1.dwithouts1.ipping.C1.osingofthejawsmaybeachievedbypressuresystems.ThedimensionsofthefoundtobearenotKnifethes1.itmid-waybetweenthetwojasdditioru1.informationadjustingandHo1.1.owpunchortemp1.ate,forcuttingoutthetestpieces.E
25、quipmentinwhichthetestpiecescanbeimmersedinwa1.erpriortowettesting.Disti1.1.edordeionizedwater,forwettingoutthetestpieces.Samp1.essha1.1.becutinsuchawayastobeasrepresentativeaspossib1.eofthebatchbeingexamined.3dttrth3Hshh1.hhtixrfUhtrMti.theusab1.ewidthofthecoatedfabricinaccordancewithISO2286-2Forte
26、stsfortearinginthe1.ongitudina1.direction,thetestpiecessha1.1.bese1.ectedsothattheir1.ength心唯生陋区时曲辟做3版般利舲a1.se1.留然的也领tedh快S三ffWfort储itud府$解演m8coatedfabric.掷厥毙图WinOr麻tedsam黑网联阖:T招由战R四福用1.v1.Sf。麻出弊趣esf三thattR&ewarpIhesamedirectiontobetested.6.2 Testpieces6.2.1 ShapeanddimensionsCutouttestpiecesusingah
27、o1.1.owpunchortemp1.ate,preferab1.yofoneofthedesignsshowninFigure1.Testpiecesofdifferentshapesanddimensionsmay,however,a1.sobeused,providedthat:the1.engthtobetornis43mm0.5mm;a/带fN?曜，een5mmand15mmismadeintheupperedgeinordertopreventthe1.astthreadsthewidthandgenera1.shapeofthetestpiecesaresuchthatnone
28、ofthetornpartsrubagainsttheframeworkorthependu1.um.1Incision2positionofjawsFigure1Testpiecedesigns6.2.2 Numberoftestpiecesdircction.Pre-treatmentforwettestwettingpiecesSurfactantinimersedmassfraction,waterabou1.),20Waterthecontain1.ngvo1.umemorethanpieces7 Time-interva1.betweenmanufactureandtestingn
29、on-productintendedtocomparab1.e,betweenmanufacturepossib1.e,testingbeCarriedfourWeekstheandsamemanufactureandtestingotherwiseagreedbetweentheinterestedparties,thetimebetweenthe8 Atmosphereforconditioningandtesting8.1 ForconditioningfabricsCOatedminimUmSidC24on1.y,recommended.16hexposureisrecommended
30、.Forfabricscoatedon8.2 Fortestingbothtemperatureandhumidity,se1.ecttheatmospherefromAtoC.9 Procedurereadingmeasurementsmeasurementsca1.etestPieCeSaddingresu1.tsweightsnecessary,andresu1.tbetweenfu1.1.-sca1.eposition.thattheapparatusissetatzeroasexp1.ainedinAnnexA.Movethependu1.umintotheraisedthejaws
31、.C1.ampthetestpiececentredandwiththebottomedgesetagainstthebottomofthejaws.Re1.easethependu1.um.Restrainthependu1.umonthereturnswingwithoutdisturbingthereading5Pu(aaomentIUsuaUkGhiicatesitdirect1.yinnewtons.EnergyisconvertedintoF=-53W1.whereFisthetearingforce,innewtons;Wisthetearenergy,injou1.es；1.i
32、sthedisp1.acementofthepointofapp1.icationoftheforce,inmetres.Ca1.cu1.atethearithmeticmeanofthefiveva1.uesobtainedineachdirectionandroundittotv,o11 Testfigures.significantreportJjICgff3gJ*1.*bfM确WIW例晚由fpubHcationi.e.ISO4674-2:2021：WtHkta哂倒物球mvwificationofthesamp1.e；djtgcQnd1.tmM5o,JR，JbW1.WW*HW邠tSej状
33、StPieCes；g) (rtriHtfeUdhftkmICMDaIi汛娟蔚例列*tetear,andanydeviationsfromtheprocedurespecified;h) thedateoftes1.AnnexAAdjustmentandca1.ibration.1.AdjustingtheapparatusA.1.1.Genera1.A.1.21.eve1.1.ingthemanufacturersinstructions.Ieve1.1.ingessentia1.thatnorma1.1.yapparatsishorizonta1.Checkwithofa1.eve1.app
34、aratustoadjustnecessary.reading.A.1.3Cuttingb1.adecorrectitspositionifnecessary.graduatedinmi1.1.imetres,usingtheho1.1.owpunchortemp1.ate(5.2).Adjusttheheightifnecessary.A.1.4FrictioninthebearingtwentyOsci1.1.ationsthatcomp1.etedbeforeosci1.1.atesamp1.itudefa1.1.sfrictiontheconsideredneg1.igib1.eifa
35、t1.eastA.1.5Zerosettingneasurementneasurenentactua1.1.ynecessary,toaccordanceto1.erancemanufacturersinstruCtiOnS.reading.A.2Ca1.ibrationmanufacturer.Attachbeingused,ca1.ibrationmassesspecifiedWithinnianufacturerca1.ibrationequipment(normative)7ISO2021-A1.1.rightsreservedIfnecessary,adjusttheworkingp
36、artsoftheapparatustoconformwiththerequirementsofC1.ause4andbyfo1.1.owingItisscrewstheprovided.Nevermodifytheit1.eve1.theandadjustitifthezerousingtheWiththependu1.umhangingfree,verifyvisua1.1.ythatthecuttingb1.adeiscentredbetweenthejawsandTheheightofthecuttingb1.adesha1.1.besuchthatthe1.engthwhichwi1
37、.1.betorninthenotchedtestpieceis43mm0.5mm.Thiscanbecheckedeasi1.ybycuttingatest)ecefromasheetofcoordinatepaperAb1.untb1.adewi1.1.adverse1.yaffecttheresu1.ts.Ifnecessary,sharpenorrep1.acetheb1.ade.Inbothcases,checktheheightagain.Checkforanyfrictioninthebearingsbyoperatingtheapparatuswithoutatestpiece
38、andkeepingthestopdepressedarethependu1.umthefree1.y.Theha1.fisinitia1.va1.ue.Aftercheckingthattheapparatusis1.eve1.,operateitwithnotestpieceinthejaws.CheckthattheAdjustthedevicedevice,i11ndicateszero,inwithinwiththeof1%ofthefu1.1.-sca1.eTheapparatusisconsideredtobeproper1.yadjustedwhenzerohasbeenobtainedthreetimesconsecutive1.y.Afteradjustmentoftheapparatus,ca1.ibrateitusingca1.ibrationmassesobtainab1.efromtheforthetypeoftesterandIhcThereadingsha1.1.beasaccuratetobythe1%ofIJwofthemass.(HBib1.iography恻观仍出队必领meth艇tacoatedfabricsDeterminationoftearresistancePart1：ICS59.080.40
