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1、MaterialSpecificationGM6259MRubberLowPressureAirInjectionReactorTubing1Scope1.1.1.3DimensionsandTolerances.Therecom-mendedstandarddimensionsandtolerancesforthisThisspecificationcoversrubbertubingforairinjectiontubing,andmetalfittingsusedforthesystem,isasreactorusagea
2、ndrubbertubingforcarryinglowpres-indicatedinTable1.sureair,andwhichisintendedtowithstandcontinu-Table1:StandardDimensions&Tolerancesousservicetemperaturesfrom-40to+125C.TherubbermaterialsdescribedbythisspecificationareTubingIDTubingODFittingODnotsuitableforthetransp
3、ortofaircontaminatedwithfuel,oil,orotherhydrocarbons.mmmmmm1.1MaterialDescription.14.60–15.6022.60–24.2015.60–16.201.1.1MaterialIdentification.17.75–18.7526.55–28.1518.75–19.351.1.1.1RubberTubeMaterial.1.1.1.4TubeMarking.Thetubeshallbelegible1.1.1.1.1MaterialperSAEJ2
4、00M3CA707Z1,Z2,markedwiththefollowinginformation:manufacturer’sZ3,Z4,Z5,Z6,Z7,Z8,Z9RMAcodeidentification,anddatecode.Suchmark-Z1:PolymermustbeallEPDM.ingshallbeprintedparalleltotheaxisinblocklettersnotlessthan3mmhighandtheopenspacebetweenZ2:OzoneResistance:Partmustha
5、vearatingofthespecifiedmarkingsshallnotexceed25mm.zerowhentestedperGM4486P(Y).1.1.1.4.1Thedatecodeshallconsistofsixdigits:theZ3:HeatResistance(ASTMD865),168hat150C.firsttwodigitsshallrepresentthemonth(01through12)oftheyear,thenexttwoshallrepresentthedayofChangeinhar
6、ness,max:±15pts.ShoreAthemonth(01through31),andthelasttwoshallbeChangeintensilestrength,max:........30%thelasttwodigitsoftheyear.Changeinelongation,max:...........70%1.2Cross-ReferenceofReplacedSpecifications.Subparagraphswerenotapplicable.Z4:CompressionSet(ASTMD395,
7、MethodB),70hat150C.1.3Symbol.Notapplicable.Compressionset,max:..............75%1.4TypicalApplication.Notapplicable.Z5:KinkResistance:1.5Remarks.Notapplicable.Collapse,max:..............seeTable22ReferencesZ6:BurstStrength(ASTMD380):Note:Onlythelatestapprovedstandard
8、sareappli-Burststrength,min...............520kPacableunlessotherwisespecified.Z7:PaintPanelStaining(GM9902P):2.1Normative.Paintpane
