Designation:F2493−18StandardSpecificationforP225/60R1697SRadialStandardReferenceTestTire1ThisstandardisissuedunderthefixeddesignationF2493;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThisspecificationcoversthegeneralrequirementsfortheP225/60R1697Sradialstandardreferencetesttire.Thetirecoveredbythisspecificationisprimarilyforuseasareferencetireforbrakingtraction,snowtraction,andwearperformanceevaluations,butmayalsobeusedforotherevaluations,suchaspavementroughness,noise,orotherteststhatrequireareferencetire.1.1.1OtherstandardreferencetesttiresarealsousedforthesepurposesandarereferencedinSection2.1.2Thisspecificationprovidesarimcodediameterof16standardtiredesignandconstruction,standarddimensions,andspecifiestheconditionsofstorage.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D412TestMethodsforVulcanizedRubberandThermoplas-ticElastomers—TensionD2240TestMethodforRubberProperty—DurometerHard-nessD3182PracticeforRubber—Materials,Equipment,andPro-ceduresforMixingStandardCompoundsandPreparingStandardVulcanizedSheetsE867TerminologyRelatingtoVehi...
