作者:标准资料网 时间:2024-05-22 14:02:51   浏览:9992   来源:标准资料网

【英文标准名称】:StandardTestMethodforHeatandVisibleSmokeReleaseRatesforMaterialsandProductsUsingaThermopileMethod
【原文标准名称】:用热电堆法测量材料和产品的热和可见烟雾释放率用标准试验方法
【标准号】:ASTME906-2007e1
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:E05.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:量热法;防火安全;热学;易燃的;材料;烟;测试
【英文主题词】:calorimetry;ignitability;heatrelease;smokeobscuration;smokerelease;Burningcharacteristicsbuildingmaterials;Combustion;Fire-resistantmaterials/testing;Heatingtestsbuildingproducts;Heatrelease;Ignitionbuildingmaterials;Radiantheatfill;Radiationexposure;Releaserates;Roofingmaterials/applications;Smokeanalysis
【摘要】:Thistestmethodprovidesadescriptionofthebehaviorofmaterialspecimensunderaspecifiedfireexposureintermsofthereleaserateofheatandvisiblesmoke.Itispossibletodeterminethechangeinbehaviorofmaterialsandproductswithchangeinheat-fluxexposurebytestingspecimensinaseriesofexposuresthatcoverarangeofheatfluxes.Thedataobtainedforaspecifictestdescribetherateofheatandsmokereleaseofthespecimenwhenexposedtothespecificenvironmentalconditionsandproceduresusedinperformingthattest.Theentireexposedsurfaceofthespecimenwillnotbeburningduringtheprogressiveinvolvementphasewhenpiloted,pointignition(impingement)proceduresareused.Duringtheperiodofprogressivesurfaceinvolvement,releaseratesofheatandsmokearex201C;persquaremetreoforiginalexposedsurfaceareax201D;notx201C;persquaremetreofflameinvolvedsurface.x201D;Theratesofbothheatandsmokereleasearecalculatedpersquaremetreoforiginalsurfaceareaexposed.Ifaspecimenswells,sags,delaminates,orotherwisedeformssothattheexposedsurfaceareachanges,calculatedreleas1.1Thistestmethodprovidesfordeterminingthereleaseratesofheatandvisiblesmoke(Note1)frommaterials,products,orassemblieswhenexposedtodifferentlevelsofradiantheat.Note18212;Visiblesmokeisdescribedintermsoftheobscurationoftransmittedlightcausedbycombustionproductsreleasedduringthetests(see14.2.1).1.2Thisfire-test-responsemethodassessesheatreleasebyathermalmethod,thermopile,usingaradiantheatsourcecomposedofanarrayoffourelectricalresistanceelements.1.3Thistestmethodprovidesforradiantthermalexposureofaspecimenbothwithandwithoutapilot.Pilotedignitionresultsfromdirectflameimpingementonthespecimen(piloted,pointignition)orfromuseofthepilottoignitegasesevolvedbypyrolysisofthespecimen.1.4Heatandsmokereleasearemeasuredfromthemomentthespecimenisinjectedintoacontrolledexposurechamber.Themeasurementsarecontinuedduringtheperiodofignition(andprogressiveflameinvolvementofthesurfaceinthecaseofpointignition),andtosuchatimethatthetestisterminated.1.5TheapparatusdescribedinthistestmethodisoftenreferredtoastheOhioStateUniversity(OSU)rateofheatreleaseap
【中国标准分类号】:Q04
【国际标准分类号】:13_220_50
【页数】:26P.;A4
【正文语种】: