ISO-188-2011-硫化橡胶或热塑性橡胶加速老化和耐热试验

ReferencenumberISO188:2011(E)©ISO2011INTERNATIONALSTANDARDISO188Fifthedition2011-10-01Rubber,vulcanizedorthermoplastic—AcceleratedageingandheatresistancetestsCaoutchoucvulcaniséouthermoplastique—EssaisderésistanceauvieillissementaccéléréetàlachaleurISO188:2011(E)COPYRIGHTPROTECTEDDOCUMENT©ISO2011Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromeitherISOattheaddressbeloworISO'smemberbodyinthecountryoftherequester.ISOcopyrightofficeCasepostale56[e-mail]©ISO2011–AllrightsreservedISO188:2011(E)©ISO2011–AllrightsreservediiiContentsPageForeword............................................................................................................................................................iv Introduction.........................................................................................................................................................v 1 Scope......................................................................................................................................................1 2 Normativereferences............................................................................................................................1 3 Principle.................................................................................................................................................1 4 Apparatus...............................................................................................................................................2 5 Calibration..............................................................................................................................................4 6 Testpieces.............................................................................................................................................4 7 Timeintervalbetweenvulcanizationandtesting...............................................................................5 8 Ageingconditions(durationandtemperature)..................................................................................5 9 Procedure...............................................................................................................................................6 10 Expressionofresults............................................................................................................................6 11 Precision................................................................................................................................................6 12 Testreport..............................................................................................................................................7 AnnexA(informative)Determinationoftheairspeedinovenswithforcedaircirculation.......................8 AnnexB(informative)Precision......................................................................................................................10 AnnexC(informative)Guidanceforusingprecisionresults.......................................................................17 AnnexD(normative)Calibrationschedule....................................................................................................18 Bibliography......................................................................................................................................................20 ISO188:2011(E)iv©ISO2011–AllrightsreservedForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part2.ThemaintaskoftechnicalcommitteesistoprepareInternationalStandards.DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting.PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ISO188waspreparedbyTechnicalCommitteeISO/TC45,Rubberandrubberproducts,SubcommitteeSC2,Testingandanalysis.Thisfiftheditioncancelsandreplacesthefourthedition(ISO188:2007),ofwhichitconstitutesaminorrevisiontoincludeanannex(AnnexD)specifyingacalibrationschedulefortheapparatusused.ISO188:2011(E)©