ASTM_E_2058_-_13a.pdf

Designation:E205813aAn American National StandardStandard Test Methods forMeasurement of Material Flammability Using a FirePropagation Apparatus(FPA)1This standard is issued under the fixed designation E2058;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This fire-test-response standard determines and quanti-fies material flammability characteristics,related to the propen-sity of materials to support fire propagation,by means of a firepropagation apparatus(FPA).Material flammability character-istics that are quantified include time to ignition(tign),chemical(Qchem),and convective(Qc)heat release rates,mass loss rate(m)and effective heat of combustion(EHC).1.2 The following test methods,capable of being performedseparately and independently,are included herein:1.2.1 Ignition Test,to determine tignfor a horizontal speci-men;1.2.2 Combustion Test,to determine Qchem,Qc,m,and EHCfrom burning of a horizontal specimen;and,1.2.3 Fire Propagation Test,to determine Qchemfrom burn-ing of a vertical specimen.1.3 Distinguishing features of the FPA include tungsten-quartz external,isolated heaters to provide a radiant flux of upto 110 kW/m2to the test specimen,which remains constantwhether the surface regresses or expands;provision for com-bustion or upward fire propagation in prescribed flows ofnormal air,air enriched with up to 40%oxygen,air oxygenvitiated,pure nitrogen or mixtures of gaseous suppressionagents with the preceding air mixtures;and,the capability ofmeasuring heat release rates and exhaust product flows gener-ated during upward fire propagation on a vertical test specimen0.305 m high.1.4 The FPA is used to evaluate the flammability of mate-rials and products.It is also designed to obtain the transientresponse of such materials and products to prescribed heatfluxes in specified inert or oxidizing environments and toobtain laboratory measurements of generation rates of fireproducts(CO2,CO,and,if desired,gaseous hydrocarbons)foruse in fire safety engineering.1.5 Ignition of the specimen is by means of a pilot flame ata prescribed location with respect to the specimen surface.1.6 The Fire Propagation test of vertical specimens is notsuitable for materials that,on heating,melt sufficiently to forma liquid pool.1.7 Values stated are in SI units.Values in parentheses arefor information only.1.8 This standard is used to measure and describe theresponse of materials,products,or assemblies to heat and flameunder controlled conditions,but does not by itself incorporateall factors required for fire hazard or fire risk assessment of thematerials,products or assemblies under actual fire conditions.1.9 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.For specific hazardstatements,see Section 7.2.Referenced Documents2.1 ASTM Standards:2E176 Terminology of Fire StandardsE906 Test Method for Heat and Visible Smoke ReleaseRates for Materials and Products Using a ThermopileMethodE1321 Test Method for Determining Material Ignition andFlame Spread PropertiesE1354 Test Method for Heat and Visible Smoke ReleaseRates for Materials and Products Using an Oxygen Con-sumption CalorimeterE1623 Test Method for Determination of Fire and ThermalParameters of Materials,Products,and Systems Using anIntermediate Scale Calorimeter(ICAL)3.Terminology3.1 DefinitionsFor definitions of terms used in these testmethods,refer to Terminology E176.1These test methods are under the jurisdiction of ASTM Committee E05 on FireStandards and are the direct responsibility of Subcommittee E05.22 on SurfaceBurning.Current edition approved Nov.1,2013.Published November 2013.Originallyapproved in 2000.Last previous edition approved in 2011 as E2058 11.DOI:10.1520/E2058-13A.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2 Definitions of Terms Specific to This Standard:3.2.1 fire propagation,nincrease in the exposed surfacearea of the specimen that is actively involved in flamingcombustion.3.3 Symbols:Ad=cross sectional area of test section duct(m2)cp=specific heat of air at constant pressure(kJ/kg K)Gco=mass flow rate of CO in test section duct(kg/s)Gco2=mass flow rate of CO2in test section duct(kg/s)Heff=effective heat of combustion(kJ/kg)K=flow coefficient of averaging Pitot tube duct gasvel