Designation:G65−16StandardTestMethodforMeasuringAbrasionUsingtheDrySand/RubberWheelApparatus1ThisstandardisissuedunderthefixeddesignationG65;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverslaboratoryproceduresforde-terminingtheresistanceofmetallicmaterialstoscratchingabrasionbymeansofthedrysand/rubberwheeltest.Itistheintentofthistestmethodtoproducedatathatwillreproduciblyrankmaterialsintheirresistancetoscratchingabrasionunderaspecifiedsetofconditions.1.2Abrasiontestresultsarereportedasvolumelossincubicmillimetresfortheparticulartestprocedurespecified.Materialsofhigherabrasionresistancewillhavealowervolumeloss.NOTE1—Inordertoattainuniformityamonglaboratories,itistheintentofthistestmethodtorequirethatvolumelossduetoabrasionbereportedonlyinthemetricsystemascubicmillimetres.1mm3=6.102×10−5in3.1.3Thistestmethodcoversfiverecommendedprocedureswhichareappropriateforspecificdegreesofwearresistanceorthicknessesofthetestmaterial.1.3.1ProcedureA—Thisisarelativelyseveretestwhichwillrankmetallicmaterialsonawidevolumelossscalefromlowtoextremeabrasionresistance.Itisparticularlyusefulinrankingmaterialsofmediumtoextremeabrasionresistance.1.3.2ProcedureB—Ashort-termvariationofProcedureA.Itmaybeusedforhighlyabrasiveresistantmaterialsbutisparticularlyusefulintherankingofmedium-andlow-abrasive-resistantmaterials.ProcedureBshouldbeusedwhenthevolume–lossvaluesdevelopedbyProcedureAexceeds100mm3.1.3.3ProcedureC—Ashort-termvariationofProcedureAforuseonthincoatings.1.3.4ProcedureD—ThisisalighterloadvariationofProcedureAwhichisparticularlyusefulinrankingmaterialsoflow-abrasionresistance.ItisalsousedinrankingmaterialsofaspecificgenerictypeormaterialswhichwouldbeverycloseinthevolumelossratesasdevelopedbyProcedureA.1.3.5ProcedureE—Ashort-termvariatio...
