Designation:F2803−09(Reapproved2015)StandardTestMethodforEvaluatingRimSlipPerformanceofTiresandWheels1ThisstandardisissuedunderthefixeddesignationF2803;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodisperformedtodeterminetheamountofrotationalslipoccurringatthetire/wheelinterfacewhileunderheavylongitudinalloadconditions.1.2Thistestmethodissuitableforresearchanddevelop-mentpurposeswheretiresarecomparedduringasingleseriesoftests.Theymaynotbesuitableforregulatorystatutesorspecificationacceptancebecausethevaluesobtainedmaynotnecessarilyagreeorcorrelateeitherinrankorderorabsoluteperformancelevelwiththoseobtainedunderotherenviron-mentalconditionsonothersurfacesorthesamesurfaceafteradditionaluse.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2F538TerminologyRelatingtotheCharacteristicsandPer-formanceofTires2.2SAEStandards:3SAEJ2013MilitaryTireGlossarySAEJ670eVehicleDynamicsTerminology3.Terminology3.1Definitions:3.1.1bead,n—ofatire,thepartofatirethatcomesincontactwiththerimandisshapedtosecurethetiretotherim.F5383.1.2candidatetire,n—testtirethatispartofatestprogram.F5383.1.3controltire,n—referencetireusedinaspecifiedmannerthroughoutatestprogram.F5383.1.4deflection,n—differencebetweentheunloadedandloadedsectionheights.SAEJ20133.1.5drawbar,n—deviceforcouplingahaulingvehicletoaload.3.1.6dynamometer,n—machineusedtomeasuretorqueandrotationalspeed(rpm)fromwhichpowerproducedbyanengine,motororotherrotatingprimemo...
