Designation:F2366−12StandardPracticeforDeterminingtheRelativeLightfastnessofInkJetPrintsExposedtoWindowFilteredDaylightUsingaXenonArcLightApparatus1ThisstandardisissuedunderthefixeddesignationF2366;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversspecificproceduresandtestcondi-tionsthatareapplicableforxenon-arcexposureofinkjetmediaprintsconductedinaccordancewithPracticesG151andG155.Thelaboratoryacceleratedprocedureisintendedtodeterminetherelativelightfastnessofinkjetprintsinofficeenvironmentswherewindowfiltereddaylightisusedforillumination.1.2Thetwocriteriausedtodeterminerelativelightfastnessareinstrumentalcolorchangeandchangeinopticaldensity.1.3Thispracticeisusefulindeterminingtherelativelightfastnessofaseriesofprintsortherelationofthelightfastnessoftheprintofinteresttotheperformanceofcontrolswithknownlightfastnessexposedsimultaneously.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Specificprecau-tionarystatementsaregiveninsection8.1.5ThereisnoequivalentISOstandard.2.ReferencedDocuments2.1ASTMStandards:2D1729PracticeforVisualAppraisalofColorsandColorDifferencesofDiffusely-IlluminatedOpaqueMaterialsD2244PracticeforCalculationofColorTolerancesandColorDifferencesfromInstrumentallyMeasuredColorCoordinatesD3424PracticeforEvaluatingtheRelativeLightfastnessandWeatherabilityofPrintedMatterE1347TestMethodforColorandColor-DifferenceMea-surementbyTristimulusColorimetryE1348TestMethodforTransmittanceandColorbySpec-trophotometryUsingHemisphericalGeometryE1349TestMethodforReflectanceFactorandColorbySpectrophotometryUsingBidirectional(45°:0°or0°:45°...