ISO 5658-4-2001 对火反应试验火焰扩散第4部分：垂直方向样品的垂直火焰的中级试验
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【英文标准名称】:Reactiontofiretests-Spreadofflame-Part4:Intermediate-scaletestofverticalspreadofflamewithverticallyorientedspecimen
【原文标准名称】:对火反应试验火焰扩散第4部分：垂直方向样品的垂直火焰的中级试验
【标准号】:ISO5658-4-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-06
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC92
【标准类型】:()
【标准水平】:()
【中文主题词】:可燃性;建筑产品;火焰传播;燃烧试验;定义;防火安全;建筑
【英文主题词】:Combustibility;Construction;Constructionalproducts;Definition;Definitions;Firesafety;Firetests;Flamepropagation
【摘要】:1ThispartofISO5658specifiesanintermediate-scalemethodoftestformeasuringtheverticalspread(upwardanddownward)offlameoveraspecimenofaproductorientatedintheverticalposition.Ameasureoflateralspreadcanalsobeobtained.Itprovidesdatasuitableforcomparingtheperformanceofmaterials,compositesorassemblies,whichareusedastheexposedsurfacesofwallsorotherverticallyorientatedproductsinconstructionapplications.Someproductswithprofiledsurfacescanalsobetestedwithamodifiedprocedurerepresentativeoftheend-useconditionsoftheproduct.2Upwardflamespreadisnotlimitedtosurfaceswhicharevertical.Itisrecognizedthatanenhancedformofupward,wind-aidedflamespreadcanalsooccuronsurfacesatananglegreaterthan20°fromthehorizontalwithoutanyexternalventilation.Thistypeofflamespreadcanoccurinbothplanarslopingsurfacesandsteppedsurfacessuchasstairs.Flamespreadinthesesituationscanbecomeveryrapidandcancauseseriousproblemsinescapewayssuchasstaircases.Whenassessingsteppedorslopingsurfacematerials,itmaybemoreappropriatetouseaverticalflamespreadtestratherthanatestinwhichthespecimenishorizontal.3ThispartofISO5658isapplicabletothemeasurementanddescriptionofthepropertiesofmaterials,products,compositesorassembliesinresponsetoradiativeheatinthepresenceofnon-impingingpilotflamesundercontrolledlaboratoryconditions.Theheatsourcemaybeconsideredtorepresentasingleburningitemsuchasawastepaperbinoranupholsteredchairwithinanenclosure,andthisscenariowouldgenerallybeconsideredtoapplyduringtheearlydevelopingstageofafire(seeISO/TR11696-1andISO/TR11696-2).ThispartofISO5658shouldnotbeusedalonetodescribeorappraisethefirehazardorfireriskofmaterials,products,compositesorassembliesunderactualfireconditions.
【中国标准分类号】:P16
【国际标准分类号】:13_220_50
【页数】:37P;A4
【正文语种】:英语
【原文标准名称】:对火反应试验火焰扩散第4部分：垂直方向样品的垂直火焰的中级试验
【标准号】:ISO5658-4-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-06
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC92
【标准类型】:()
【标准水平】:()
【中文主题词】:可燃性;建筑产品;火焰传播;燃烧试验;定义;防火安全;建筑
【英文主题词】:Combustibility;Construction;Constructionalproducts;Definition;Definitions;Firesafety;Firetests;Flamepropagation
【摘要】:1ThispartofISO5658specifiesanintermediate-scalemethodoftestformeasuringtheverticalspread(upwardanddownward)offlameoveraspecimenofaproductorientatedintheverticalposition.Ameasureoflateralspreadcanalsobeobtained.Itprovidesdatasuitableforcomparingtheperformanceofmaterials,compositesorassemblies,whichareusedastheexposedsurfacesofwallsorotherverticallyorientatedproductsinconstructionapplications.Someproductswithprofiledsurfacescanalsobetestedwithamodifiedprocedurerepresentativeoftheend-useconditionsoftheproduct.2Upwardflamespreadisnotlimitedtosurfaceswhicharevertical.Itisrecognizedthatanenhancedformofupward,wind-aidedflamespreadcanalsooccuronsurfacesatananglegreaterthan20°fromthehorizontalwithoutanyexternalventilation.Thistypeofflamespreadcanoccurinbothplanarslopingsurfacesandsteppedsurfacessuchasstairs.Flamespreadinthesesituationscanbecomeveryrapidandcancauseseriousproblemsinescapewayssuchasstaircases.Whenassessingsteppedorslopingsurfacematerials,itmaybemoreappropriatetouseaverticalflamespreadtestratherthanatestinwhichthespecimenishorizontal.3ThispartofISO5658isapplicabletothemeasurementanddescriptionofthepropertiesofmaterials,products,compositesorassembliesinresponsetoradiativeheatinthepresenceofnon-impingingpilotflamesundercontrolledlaboratoryconditions.Theheatsourcemaybeconsideredtorepresentasingleburningitemsuchasawastepaperbinoranupholsteredchairwithinanenclosure,andthisscenariowouldgenerallybeconsideredtoapplyduringtheearlydevelopingstageofafire(seeISO/TR11696-1andISO/TR11696-2).ThispartofISO5658shouldnotbeusedalonetodescribeorappraisethefirehazardorfireriskofmaterials,products,compositesorassembliesunderactualfireconditions.
【中国标准分类号】:P16
【国际标准分类号】:13_220_50
【页数】:37P;A4
【正文语种】:英语
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