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1、INTERNATIONA1.STANDARDISO1432editionFifth202103Rubber,vu1.canizedorthermop1.astic一Determinationof1.ow-temperaturestiffening(Gehmantest)Caoutchoucvu1.caniseouIhermop1.astiqueDeterminationdeIarigiditeabassetemperature(EssaiGehman)ISORqf4r?2?2O21tE!)O1.SO2021COPYRIGHTPROTECTEDDOCUMENTISO2021岫rkdea/山thU
2、cdOthcnviscjftc三orrtmcehDVBiwixuioiti08phnn11UatiocBhrhotocp)Mng,ptbcatonpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanherequestedfromeitherISOattheaddressbe1.oworISniK盟RAucekdHpfff1.QbbGgbodyIcommitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Interna
3、tiona1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermainte
4、nanceare。智SFR幽of1.SOIEC(M1.槐notrttH邻MMfergCCOrdanCeMtheeditoria1.ru1.esoftheISO/IECDirectives.Part2(seewww.iso.org/direc1.ives).时歌ionrightsd般掂棚15脚蝴橱卿SnSi嘏趣出即的植般眈doc1.三崎翩舟硼hsubjectofanypatentrightsidentifiedduringthedeve1.opmerUW4iouwMM41.beintheIntroductionand/orontheISO1.istofpatentdec1.arationsrec
5、eived(seewww.iso.org/pa1.ents).Anytradeusedinthisconstitutenameendorsement,documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsand哪蝴蜘明瓶ationc。的福P奥央融Mthe可般IIi潴称小牖ticn南版淮IS1.华哂瞬聊硼isoforeword.htn1.4报机密部即豳8物。gSTeChniCa
6、1.Qjmmittee1S0/TC45,Rubberandrubberproducts.Thisfiftheditioncance1.sandrep1.acesthefourthedition(ISO1432:2013),whichhasbeentechnica1.1.yrevised.Themainchangescomparedtothepreriouseditionareasfo1.1.ows:in4aise,normativereferenceshavebeenupdated;aprecisionstatementhasbeenaddedasAnnexB.ISO2021-A1.1.rig
7、htsreservedRubber,vu1.canizedorthermop1.asticDeterminationof1.ow-temperaturestiffening(Gehmantest)WARNING1Personsusingthisdocumentshou1.dbefami1.iarwithnorma1.1.aboratorypractice.Thisdocumentdoesnotpurporttoaddressa1.1.ofthesafetyprob1.ems,ifany,associatedwithitsuse.Itistheresponsibi1.ityoftheuserto
8、estab1.ishappropriatesafetyandhea1.thpracticesandtodeterminetheapp1.icabi1.ityofanyotherrestrictions.WARNING2Certainproceduresspecifiedinthisdocumentmightinvo1.vetheuseorgenerationofsubstances,orthegenerationofwaste,thatcou1.dconstitutea1.oca1.environmenta1.hazard.Referenceshou1.dbemadetoappropriate
9、documentationonsafehand1.inganddisposa1.afteruse.1 Scopetemperaturecharacteristicsofvu1.canizedorthermop1.asticrubbersoveratemperaturerangefromroom2 Normativereferencesconstitutesrequirement1.atestCditiondocumcntxeferencedreferences,(inc1.udingamendments)app1.ies.app)ies.ISOTermsandAehnitionsprocedu
10、resforpreparingandconditioningtestpiecesforphysica1.testmethodsNotermsanddefinitionsare1.istedinthisdocument.ISOOn1.inebrowsingp1.atform:avai1.ab1.eatHtpwwwi4so.Fgebp4 Princip1.estiffnessOfmeasurcdtheConncc1.ingwhentestpiece1.heseriesWithturnedca1.ibratcdspringwireandmeasuring5 Apparatusindicatingre
11、ccrdingPrOVided,permittingconvenientandofexactadjustmenttothenearestpoint.degree.Thisdocumentspecifiesastaticprocedure,knownastheGchmantest,fordeterminingthere1.ativestiffnesstoapproximate1.y-120.Thefo1.1.owingdocumentsarcreferredtointhetextinsuchawaythatsomeora1.1.oftheircontentundatedreferences,th
12、eofthisoftheFordateddocumenton1.ytheanyeditioncitedForISO18899:2013,RubberGuidetotheca1.ibrationoftestequipment323529fRubber-Genera1.ISOandIECmaintaintermino1.ogica1.databasesforuseinstandardizationatthefo1.1.ovringaddresses:IECE1.ectropedia:avai1.ab1.eathttp:/www.e1.cc1.ropedia.org/Thetorsiona1.stiffnessismeasuredasafunctionoftemperature,startingfroma1.owtemperature.Thetheang1.eistwistofbytestpiecethethetopofinwireisa180o.Torsionapparatus,consistingofatorsionhead,capab1.eofbeingturned180oinap1.anenorma1.tothetorsionwire.Thetopofthewireisfastenedtothetorsio
