【英文标准名称】:StandardTestMethodforCriticalRadiantFluxofFloor-CoveringSystemsUsingaRadiantHeatEnergySource
【原文标准名称】:使用辐射热源测定地板覆盖系统的临界辐射通量的标准试验方法
【标准号】:ASTME648-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E05.22
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:criticalradiantflux;fire;floor-coveringsystems;radiantpanel;Horizontally-mountedfloor-coveringsystems;Radiantheatexposure/testing;Simulatedconcretestructuralfloor;Criticalradiantflux;Emittance;Firetesting--floors/flooringmateria
【摘要】:Thisfiretestresponsestandardisdesignedtoprovideabasisforestimatingoneaspectofthefireexposurebehaviorofafloor-coveringsysteminstalledinabuildingcorridor.Thetestenvironmentisintendedtosimulateconditionsthathavebeenobservedanddefinedinfullscalecorridorexperiments.Thetestisintendedtobesuitableforregulatorystatutes,specificationacceptance,designpurposes,ordevelopmentandresearch.Thefundamentalassumptioninherentinthetestisthatcriticalradiantfluxisonemeasureofthesensitivitytoflamespreadoffloor-coveringsystemsinabuildingcorridor.Thetestisapplicabletofloor-coveringsystemspecimensthatfolloworsimulateacceptedinstallationpractice.Testsontheindividualelementsofafloorsystemareoflimitedvalueandnotvalidforevaluationoftheflooringsystem.Note18212;Inthisprocedure,thespecimensaresubjectedtooneormorespecificsetsoflaboratoryfiretestexposureconditions.Ifdifferenttestconditionsaresubstitutedortheanticipatedend-useconditionsarechanged,itmaynotbepossiblebyorfromthistesttopredictchangesintheperformancecharacteristicsmeasured.Therefore,theresultsarestrictlyvalidonlyforthefiretestexposureconditionsdescribedinthisprocedure.Ifthetestresultsobtainedbythismethodaretobeconsideredinthetotalassessmentoffirerisk,thenallpertinentestablishedcriteriaforfireriskassessmentdevelopedbyCommitteeE05mustbeincludedintheconsideration.1.1Thisfire-test-responsestandardcoversaprocedureformeasuringthecriticalradiantfluxofhorizontallymountedfloor-coveringsystemsexposedtoaflamingignitionsourceinagradedradiantheatenergyenvironmentinatestchamber.Aspecimenismountedoverunderlayment,asimulatedconcretestructuralfloor,bondedtoasimulatedstructuralfloor,orotherwisemountedinatypicalandrepresentativeway.1.2Thisfire-test-responsestandardmeasuresthecriticalradiantfluxatflame-out.Itprovidesabasisforestimatingoneaspectoffireexposurebehaviorforfloor-coveringsystems.Theimposedradiantfluxsimulatesthethermalradiationlevelslikelytoimpingeonthefloorsofabuildingwhoseuppersurfacesareheatedbyflamesorhotgases,orboth,fromafullydevelopedfireinanadjacentroomorcompartment.Thestandardwasdevelopedtosimulateanimportantfireexposurecomponentoffiresthatdevelopincorridorsorexitwaysofbuildingsandisnotintendedforroutineuseinestimatingflamespreadbehavioroffloorcoveringinbuildingareasotherthancorridorsorexitways.SeeAppendixX1forinformationonproperapplicationandinterpretationofexperimentalresultsfromuseofthistest.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thetextofthisstandardreferencesnotesandfootnotesthatprovideexplanatoryinformation.Thesenotesandfootnotes,excludingthoseintablesandfigures,shallnotbeconsideredasrequirementsofthisstandard.1.5Thisstandardisusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditionsbutdoesnotbyitselfincorporateallfactorsrequiredforfire-hazardorfire-riskassessmentofmaterials,products,orassembliesunderactualfireconditions..1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesa......
【中国标准分类号】:Q17
【国际标准分类号】:97_150
【页数】:16P.;A4
【正文语种】:英语