Designation:F2250−13StandardPracticeforEvaluationofChemicalResistanceofPrintedInksandCoatingsonFlexiblePackagingMaterials1ThisstandardisissuedunderthefixeddesignationF2250;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribestheprocedureforevaluatingtheabilityofanink,overprintvarnishorcoatingtowithstandchemicalexposure.Typicalchemicals,whichmaycomeincontactwiththepackage,includewater,alcohol,acid,etc.Thespecificchemicalandmethodofchoiceaswellasdetermina-tionofmeasurementoutcomearelefttouserstoagreeuponinjointdiscussion.Suggestionsforwaystomeasureandcollectinformationareofferedinthevariousmethodslistedinthispractice.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E171PracticeforConditioningandTestingFlexibleBarrierPackaging3.SignificanceandUse3.1Packagingmaterialsmaybeexposedtochemicalssuchaswater,alcohol,acid,etc.duringtheirlifecycle.Ifitisanticipatedthatthepackagingmaterialwillbeexposedtoachemical,itisimportantthattheinkorcoating,orboth,notdegrade,soften,ordissolveasaresultofthatcontact.3.2Thetestingincludedinthispracticeisapplicabletosurfaceprintedandcoatedmaterialsdesignedtoberesistanttoaspecificchemical.3.3Thechemicalstobetestedshouldbecompatiblewith(thatis,notdamageordegrade)thesubstratebeingprintedorcoated,orboth.3.4Therearefourseparat...
