Designation:C501−84(Reapproved2015)StandardTestMethodforRelativeResistancetoWearofUnglazedCeramicTilebytheTaberAbraser1ThisstandardisissuedunderthefixeddesignationC501;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethod2overstheestablishmentofanabrasivewearindexbydeterminationofthelossofweightresultingfromabrasionofunglazedceramictile.ItisapplicabletotiledescribedinDefinitionsC242.c1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3C242TerminologyofCeramicWhitewaresandRelatedProducts2.2FederalSpecification:SS-T–308bTile,Floor,Wall,andTrimUnits,Ceramic43.Terminology3.1Definitions:3.1.1Fordefinitionsoftermsusedinthistestmethod,seeTerminologyC242.4.SummaryofTestMethod4.1Thistestmethodconsistsofmountingthetilespecimensinsuitableholders,attachingthemountedholderstothespindleoftheTaberAbraser,andsubjectingthespecimenstoaprescribednumberofrevolutionsunderabrasivewheelsofspecifiedcoarsenessandunderadefiniteappliedload.Fromthelossofweightduetoabrasion,theabrasivewearindexiscalculatedbyagivenformula.5.Apparatus5.1TaberAbradingMachine,5equippedwithreplaceablehardabrasiveH-22Calibradewheels,whichcanbeloadedbyweights.5.2VacuumPick-Up,toremovetheabradedmaterialwhilethemachineisinoperation.5.3RevolutionCounter.5.4WheelRefacer.55.5Balance,havingasensitivityof0.05g.6.Sampling6.1Fourtilespecimens4in.(102mm)squareorlarger,orifceramicmosaictile,suff...
