Designation:F2217/F2217M−13StandardPracticeforCoating/AdhesiveWeightDetermination1ThisstandardisissuedunderthefixeddesignationF2217/F2217M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversaprocedurefordeterminingtheamountofcoatingappliedtoasubstrate,(forexample,film,paper,nonwoven).Theamountofcoatingisexpressedasaweightpergivenarea,(forexample,g/m2,lb/ream).1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E171/E171MPracticeforConditioningandTestingFlexibleBarrierPackaging3.Terminology3.1coating—amaterialappliedtoenhancethecharacteris-ticsofthebasesubstrates.Forthispractice,thecoatingmustbesolubleinthechosensolvent.3.2ream—500sheetsof609.6by914.4mm(24by36in.)equalto278.7m2(3000ft2).NOTE1—Otherreamsizesmaybeinuse.Ifusingareamsizeotherthan278.7m2(3000ft2),theconversionfactorK(locatedintheappendix)mustberecalculatedifreportingresultsaslb/ream.4.SummaryofPractice4.1Representativesamplesofcoatedmaterialareweighed,coatingisremovedusingasolventappropriateforthecoating,samplesaredriedandweighedagain.Thedifferentialobtainedisthecoatingweight.4.2Typicalmethodologyisasfollows:4.2.1Cutrepresentativesamplesusingacuttingdeviceandatemplateofknownunitarea“A”mm2(in.2),forexample,203.2by50.8mm(8by2in.)template.4.2.2Weigheachsampleontheanalyticalbalancetot...
