Designation:D7244−06a(Reapproved2011)StandardTestMethodforRelativeCureofEnergy-CuredInksandCoatings1ThisstandardisissuedunderthefixeddesignationD7244;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddescribestheprocedureforevaluatingtherelativecureofprintedenergy-cured(ultravioletorelectronbeam)inkorcoatingbyamechanicalsolventrubtestusingamotorizedCrockmeter.1.2Thistestmethodisapplicabletolaboratoryandproduc-tionprintsonanyflatsubstratethatisnothickerthan3mm(0.125in.),durableenoughtowithstandthetestconditions,andforwhichacontrol(reference)sampleisavailable.1.3Thistestmethodappliestocomparisonsbetweenenergy-curedinksandcoatingsofthesamechemistryandfilmweightandshouldnotbeusedtocomparedifferentinkorcoatingchemistriesorvariousappliedfilmweightswithoutfirstestablishingprocessperformance.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1OtherStandards:AATCCTestMethod8ColorfastnesstoCrocking:AATCCCrockmeterMethod23.Terminology3.1Definitions:3.1.1break-through,n—thepointwheretheinkorcoatingsfilmispenetratedbythesolventrub,causingalossofdensity.3.1.2cure,n—theconditionofatestsampleafterconver-siontoadriedfilmasmeasuredbytestsgenerallyrelatedtoend-useperformanceandmutuallyagreeabletosupplierandpurchaser.3.1.3electronbeam(EB)curing,n—conversionofaninkorcoatingtoitsfinalpolymerizedstatebymeansofamechanisminitiatedbyelectronbeamradiation.3.1.4ultraviolet(UV)curing,n—conversionofaninkorcoatingtoitsfinalpolymerizedstatebymeansof...
