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【英文标准名称】:StandardTestMethodforDeterminingFirePenetrationofExteriorWallAssembliesUsingaDirectFlameImpingementExposure
【原文标准名称】:用直接火焰冲击曝光法测定组合外墙防火焰穿透的标准试验方法
【标准号】:ASTME2707-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E05.14
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:exteriorwallcovering;fireresistance;fire-test-responsecharacteristic;siding;wallassembly
【摘要】:Thetestmethoddescribedhereinmeasurestheabilityoftheexteriorwallcoveringmaterialorsystemtoresistfirepenetrationfromtheexteriortotheunexposedsideofthewallassemblyunderthespecifiedconditionsofexposure.Representativejointsandothercharacteristicsofanassemblyshallbeincludedinatestspecimenwhenthesedetailsarerepresentativeoftheconstructionoftheend-useproduct(s).Thistestmethodisapplicabletoend-useproduct(s)nothavinganideallyplanarexternalsurface.Theoverallperformanceofthetestspecimenisvisuallydocumentedbyfull-colorphotographicrecords.Videotapingofthecompletefiretestisanacceptablealternativetothephotographicrecord.Theuseofinfraredphotographyoftheunexposedsideofthetestwallcanbeusedtorevealdevelopmentofincreasingtemperaturesorpersistinghotspots.Inthisprocedure,thespecimensaresubjectedtoaspecificsetoflaboratoryfiretestexposureconditions.Ifdifferenttestconditionsaresubstitutedortheanticipatedend-useconditionsarechanged,itisnotknownwhetheritispossiblebyuseofthistesttopredictchangesintheperformancecharacteristicsmeasured.Therefore,theresultsarestrictlyvalidonlyforthefiretestexposureconditionsdescribedinthisprocedure.1.1Thisfire-test-responsestandardprescribesamethodtoassessthefireperformanceofaverticallyorientedspecimenexposedtodirectflameimpingementinasimulatedexternalfireexposurepotentiallyencounteredinax2018;WildlandUrbanInterfacex2019;scenario.Thistestmethodprovidesdatasuitableforcomparingtheperformanceofmaterials,whichareusedastheexposedsurfacesofexteriorwallsinconstructionapplications.Note18212;ThistestmethodcloselyfollowsthetestprocedureofCaliforniaOfficeofStateMarshal(SFM)Method12-7A-1.1.2Thistestmethodmeasurestheabilityofthewallsystemtoresistfirepenetrationfromtheexteriorintothewallcavityorunexposedsideofthetestassemblyundertheconditionsofexposure.1.3Thistestmethodprovidesdatasuitableforcomparingtheperformanceofverticallyorientedmaterials,productsorassembliesinexteriorconstructionapplications.Thetestspecimenshallbetestedinthicknessesandconfigurationsrepresentativeofactualendproductorsystemuses.1.4LimitationsofthetestmethodarelistedinSection5.5.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.1.6Thisstandardisusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditions,butdoesnotbyitselfincorporateallfactorsrequiredforfirehazardorfireriskassessmentofthematerials,products,orassembliesunderactualfireconditions.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.8Firetestingofproductsandmaterialsisinherentlyhazardous,byvirtuebytheuseofhazardousmaterials,operationsorequipment,andadequatesafeguardsforpersonnelandpropertyshallbeemployedinconductingthesetests.
【中国标准分类号】:P16
【国际标准分类号】:91_060_10
【页数】:8P.;A4
【正文语种】:英语