Designation:D7140/D7140M−22StandardTestMethodtoMeasureHeatTransferThroughTextileThermalBarrierMaterials1ThisstandardisissuedunderthefixeddesignationD7140/D7140M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheevaluationofheattransferoftextilematerialswhichareusedasthermalbarrierswhenexposedtoacalibratedconvectiveandradiantenergyheatsourcefor60s.1.1.1Thisstandardisusedtodetermineiftheheattransferissufficienttoigniteflammablematerialswhicharecontiguoustothetextilethermalbarriers.1.2Thisstandardisusedasameanstodifferentiatetextilematerials.1.3Thistestmethodisnotintendedtomeasuretheinsula-tionpropertiesofmaterialsusedinprotectiveclothing.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotnecessarilyexactequivalents;therefore,toensureconformancewiththestandard,eachsystemshallbeusedindependentlyoftheother,andvaluesfromthetwosystemsshallnotbecombined.1.5Thisstandardisusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditions,butdoesnotbyitselfincorporateallfactorsrequiredforfirehazardorfireriskassessmentofthematerials,productsorassembliesunderactualfireconditions.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,healthandenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.7Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2....
