Designation:F1515−03(Reapproved2008)StandardTestMethodforMeasuringLightStabilityofResilientFlooringbyColorChange1ThisstandardisissuedunderthefixeddesignationF1515;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversaprocedurefordeterminingtheresistanceofresilientfloorcoveringtocolorchangefromexposuretolightoveraspecifiedperiodoftime.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D2244PracticeforCalculationofColorTolerancesandColorDifferencesfromInstrumentallyMeasuredColorCoordinatesD2565PracticeforXenon-ArcExposureofPlasticsIn-tendedforOutdoorApplicationsD4459PracticeforXenon-ArcExposureofPlasticsIn-tendedforIndoorApplicationsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethodG155PracticeforOperatingXenonArcLightApparatusforExposureofNon-MetallicMaterials2.2DINStandard:DIN53384ArtificialWeatheringandAgingofPlasticsbyExposuretoLaboratoryUVRadiationSources,April19893.SummaryofPractice3.1Specimensareexposedcontinuouslyatacontrolledtemperatureandhumiditytoaproperlyfilteredxenon-arcradiant-energysource.Thefiltersselectedaretosimulateindoorexposureconditionsbehindwindowglass.SeePracticeD4459.3.2Toensureuniformexposure,thespecimensaremountedonacylindricalframeworkthatrotatesaroundthexenonlampsuspendedinthecenter.3.3Theeffectofradiation(actinicandthermal)onthespecimenshallbethecolordifferencebetweenthespecimenbeforeandafterexposure.4.SignificanceandUse4.1Resilientfloorcoveringismadebyfusingpolymermaterialsunderheatorpr...