Designation:E2079−07(Reapproved2013)StandardTestMethodsforLimitingOxygen(Oxidant)ConcentrationinGasesandVapors1ThisstandardisissuedunderthefixeddesignationE2079;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthedeterminationofthelimitingoxygen(oxidant)concentrationofmixturesofoxygen(oxidant)andinertgaseswithflammablegasesandvaporsataspecifiedinitialpressureandinitialtemperature.1.2Thesetestmethodsmayalsobeusedtodeterminethelimitingconcentrationofoxidizersotherthanoxygen.1.3Differentiationamongthedifferentcombustionregimes(suchasthehotflames,coolflamesandexothermicreactions)isbeyondthescopeofthesetestmethods.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thesetestmethodsshouldbeusedtomeasureanddescribethepropertiesofmaterials,products,orassembliesinresponsetoheatandflameundercontrolledlaboratorycon-ditionsandshouldnotbeusedtodescribeorappraisethefirehazardorfireriskofmaterials,products,orassembliesunderactualfireconditions.However,resultsofthistestmaybeusedaselementsofafireriskassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttoanassessmentofthefirehazardofaparticularenduse.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E1445TerminologyRelatingtoHazardPotentialofChemi-cals2.2NFPAPublication:3NFPA69StandardonExplosionPreventionSystems2.3NTISPublications:4Bulletin503Coward,H.F.,andJones,G.W.,BureauofMines,“LimitsofFlammabilityofGasesandVapors,”NTISAD701575,1952Bulletin627Zabetakis,M.G.,BureauofMines,“Flamma-bilityCharacteris...
