ASTM-D2000英文2008版

Designation:D2000–08ApprovedbySocietyofAutomotiveEngineersSAERecommendedPracticeJ200StandardClassificationSystemforRubberProductsinAutomotiveApplications1ThisstandardisissuedunderthefixeddesignationD2000;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope1.1Thisclassificationsystemcoversthepropertiesofvul-canizedrubbermaterials(naturalrubber,reclaimedrubber,syntheticrubbers,aloneorincombination)thatareintendedfor,butnotlimitedto,useinrubberproductsforautomotiveapplications.NOTE1—ThisclassificationsystemmayservemanyoftheneedsofotherindustriesinmuchthesamemannerasSAEnumberedsteels.Itmustberemembered,however,thatthissystemissubjecttorevisionwhenrequiredbyautomotiveneeds.Itisrecommendedthatthelatestrevisionalwaysbeused.1.2Thisclassificationsystemisbasedonthepremisethatthepropertiesofallrubberproductscanbearrangedintocharacteristicmaterialdesignations.Thesedesignationsaredeterminedbytypes,basedonresistancetoheataging,andclasses,basedonresistancetoswellinginoil.Basiclevelsarethusestablishedwhich,togetherwithvaluesdescribingaddi-tionalrequirements,permitcompletedescriptionofthequalityofallelastomericmaterials.1.3Inallcaseswheretheprovisionsofthisclassificationsystemwouldconflictwiththoseofthedetailedspecificationsforaparticularproduct,thelattershalltakeprecedence.NOTE2—Whentherubberproductistobeusedforpurposeswheretherequirementsaretoospecifictobecompletelyprescribedbythisclassi-ficationsystem,itisnecessaryforthepurchasertoconsultthesupplierinadvance,toestablishtheappropriateproperties,testmethods,andspeci-ficationtestlimits.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.2.ReferencedDocuments2.1ASTMStandards:2D395TestMethodsforRubberProperty—CompressionSetD412TestMethodsforVulcanizedRubberandThermo-plasticElastomers—TensionD429TestMethodsforRubberProperty—AdhesiontoRigidSubstratesD430TestMethodsforRubberDeterioration—DynamicFatigueD471TestMethodforRubberProperty—EffectofLiquidsD573TestMethodforRubber—DeteriorationinanAirOvenD575TestMethodsforRubberPropertiesinCompressionD624TestMethodforTearStrengthofConventionalVulcanizedRubberandThermoplasticElastomersD865TestMethodforRubber—DeteriorationbyHeatinginAir(TestTubeEnclosure)D925TestMethodsforRubberProperty—StainingofSur-faces(Contact,Migration,andDiffusion)D945TestMethodsforRubberPropertiesinCompressionorShear(MechanicalOscillograph)D1053TestMethodsforRubberProperty—StiffeningatLowTemperatures:FlexiblePolymersandCoatedFabricsD1149TestMethodsforRubberDeterioration—CrackinginanOzoneControlledEnvironmentD1171TestMethodforRubberDeterioration—SurfaceOzoneCrackingOutdoorsorChamber(TriangularSpeci-mens)D1329TestMethodforEvaluatingRubberProperty—RetractionatLowerTemperatures(TRTest)1ThisclassificationsystemisunderthejurisdictionofASTMCommitteeD11onRubberandisthedirectresponsibilityofSubcommitteeD11.30onClassificationofRubberCompounds.CurrenteditionapprovedJan.1,2008.PublishedJanuary2008.Originallyapprovedin1962.Lastpreviouseditionapprovedin2006asD2000–06ae1.2ForreferencedASTMstandards,visittheASTMwebsite,@astm.org.ForAnnualBookofASTMStandardsvolumeinformation,refertothestandard’sDocumentSummarypageontheASTMwebsite.1Copyright©ASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959,UnitedStates.LicensedbyWEXtoAMERICANUNIVERSITYOFBEIRUT.Downloaded:2/27/20081:56:24AMsingle-userlicenseonly,copyingandnetworkingprohibited./D1349PracticeforRubber—StandardTemperaturesforTestingD1418PracticeforRubberandRubberLatices—NomenclatureD2137TestMethodsforRubberProperty—BrittlenessPointofFlexiblePolymersandCoatedFabricsD2240TestMethodforRubberProperty—DurometerHardnessD3183PracticeforRubber—PreparationofProductPiecesforTestPurposesfromProductsD5964PracticeforRubberIRM901,IRM902,andIRM903ReplacementOilsforASTMNo.1,ASTMNo.2,andASTMNo.3Oils3.Purpose3.1Thepurposeofthisclassificationsystemistoprovideguidancetotheengineerintheselectionofpractical,commer-ciallyavailablerubbermaterials,andfurthertoprovideamethodforspecifyingthesematerialsbytheuseofasimple“linecall-out”designation.3.2Thisclassificationsystemwasdevelopedtopermittheadditionofdescriptivevaluesforfuturerubbermaterialswithoutcompletereorganizationoftheclassificationsystemandtofacilitatetheincorporationoffuturenewtestmethodstokeeppacewithchangingindustryrequirements.4.TypeandClass4.1Theprefixletter“M”shallbeusedtoindicatethattheclassificationsystemisbasedonSIunits.NOTE3—CalloutsnotprefixedbytheletterMrefertoanearlierclassificationsystembasedoninch-poundunits.Thiswaspublishedineditionsupto1980.4.2Rubbermaterialsshallbedesignatedonthebasisoftype(heatresistance)andclass(oilresistance).TypeandclassareindicatedbyletterdesignationsasshowninTable1andTable2andillustratedin9.1.4.3Typeisbasedonchangesin