Designation:D777–97(Reapproved2002)AnAmericanNationalStandardStandardTestMethodsforFlammabilityofTreatedPaperandPaperboard1ThisstandardisissuedunderthefixeddesignationD777;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisisafire-test-responsestandard.1.2Thesetestmethodscoverthedeterminationofflamma-bilityofpaperandpaperboardsofalltypesnomorethan1⁄16in.(1.6mm)inthickness,thathavebeentreatedtoretardthespreadofflamewhenignited.Suchpapersarecommonlydesignatedasflame-retardant-treated.1.3Thesetestmethodsmaybeusedwith,andmaybeusedtodistinguishbetween,paperandpaperboardmaterialshavingaflame-retardant-treatmentremovedbyleachinginwater,andthosewhoseflame-retardant-treatmentisnotremovedbywaterleaching.1.4Thesetestmethodsappearasfollows:SectionTestMethodA—FlammabilityofTreatedPaperandPaperboardAf-terLeachingfor4hWith24°CReagentWater8.1TestMethodB—FlammabilityofTreatedPaperandPaperboardWithoutLeaching8.21.5TheprimaryintendeduseofTestMethodAiswithpaperorpaperboardmaterialshavingaflame-retardanttreat-mentthatisnotremovedbywaterleaching,ortospecifythepropertiesofsuchmaterials.1.6TheprimaryintendeduseofTestMethodBiswithpaperorpaperboardmaterialshavingaflame-retardanttreat-mentknowntoberemovedundertheleachingconditionsspecifiedinTestMethodA,orwherenon-removaloftheflame-retardanttreatmentbywaterleachingisnotadesiredorspecifiedproperty.1.7Thisstandardshouldbeusedtomeasureanddescribethepropertiesofmaterials,products,orassembliesinresponsetoheatandflameundercontrolledlaboratoryconditionsandshouldnotbeusedtodescribeorappraisethefirehazardorfireriskofmaterials,products,orassembliesunderactualfireconditions.However,resultsofthistestmaybeusedaselementsofafireriskassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttoanassessmentofthefirehazardofaparticular...
