Designation:D6487−10StandardPracticeforPreparingPrintsofPastePrintingInksUsingaHandOperatedLaboratoryFlat-BedPress1ThisstandardisissuedunderthefixeddesignationD6487;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticecoverstheprocedureforpreparingprintsofpasteinksusingahandoperatedflat-bedlaboratoryproofpress.TheinitialmethodwasdevelopedbytheNationalPrintingInkResearchInstitute.21.2Thispracticeisapplicabletothepreparationofsingle-colorsolid-areaprintsbythedryoffsetprocess(alsoknownasLetterset)onaflatsubstratesuchaspaperormetal.Itcanreadilybeadaptedtoprintbydirectletterpress.3NOTE1—TheproofingpressdescribedinthispracticecanalsobeusedwithprintinggagesinaccordancewithPracticeD6846.1.3Thispracticeisapplicableprimarilytolithographicandletterpressinksthatdrybyoxidationorpenetration.Withtheadditionofappropriatedryingorcuringequipment,itisalsoapplicabletoothersystemssuchasheat-setorenergy-curable.1.4Theinstructionsinthispracticeareintendedtomini-mizethewithin-printandamong-operatorvariabilityinherentinhandoperations.1.5Thispracticedoesnotmeasuretheactualfilmthicknessontheprint,butevaluatesfilmthicknessequivalencebyvisualorinstrumentalcomparisonsofreflectiondensity.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheusersofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Specificprecau-tionsaregiveninSection7.2.ReferencedDocuments2.1ASTMStandards:4D6073TestMethodforRelativeSettingofHeatsetPrintingInksD6846PracticeforPreparingPrintsofPastePrintingInkswithaPrintingGageD7305TestMethodforReflectionDensityofPrintedM...
