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【英文标准名称】:StandardTestMethodforFireTestingofStackedChairs
【原文标准名称】:折叠椅的着火测试用标准试验方法
【标准号】:ASTME1822-2009
【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】:E05.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:量热法
【英文主题词】:calorimetry;carbondioxide;carbonmonoxide;chair;fire;firetesting;fire-testresponse;furniture;heatrelease;ignition;oxygenconsumption;smokeobscuration;stackedchair;stackingchair;toxiccombustiongases;Fire-testresponse;
【摘要】:Thistestmethodprovidesameansofmeasuringavarietyoffire-test-responsecharacteristicsresultingfromburningastackoffivestackingchairs.Afterignitionusingapropanegasburner,thetestspecimenispermittedtoburnfreelyunderwell-ventilatedconditions.Themostimportantfire-test-responsecharacteristicmeasuredinthistestmethodistherateofheatrelease,whichquantifiestheintensityofthefiregenerated.Therateofheatreleaseismeasuredbytheprincipleofoxygenconsumption.AnnexA3discussestheassumptionsandlimitations.Thistestmethodalsoprovidesmeasuresofotherfire-test-responsecharacteristics,includingsmokeobscuration(astherateofsmokerelease,totalsmokereleasedoropticaldensityofsmoke),combustiongasrelease(asconcentrationsofcombustiongases),andmassloss,thatareimportanttomakingdecisionsonfiresafety.Inthemajorityoffires,themostimportantgaseouscomponentsofsmokearethecarbonoxidespresentinallfires.Theyareindicatorsofthetoxicityoftheatmosphereandofthecompletenessofcombustion.Measurementofconcentrationsofcarbonoxidesareusefulfortwopurposes:aspartoffirehazardassessmentcalculationsandtoimprovetheaccuracyofheat-releasemeasurements.Othertoxiccombustiongases,whicharespecifictocertainmaterials,arealsoindicatorsofthetoxicityoftheatmospheres,butarelesscrucialfordeterminingcombustioncompletenessandareoptionalmeasures;howeverfirehazardassessmentoftenrequirestheirmeasurement.Thetypeofignitionchosen(flamingsource)iscommoninbothaccidentalandintentionalfiresinpublicoccupancies.Thistestmethodisthusapplicabletostackedchairsinpublicoccupancies.Suchfacilitiesinclude,butarenotlimitedto,health-carefacilities,old-ageconvalescentandboardandcarehomes,collegedormitoriesandresidencehalls,andhotelsandmotels.Oneofthefollowingthreeconfigurationsistobeusedinthistestmethod:TestConfigurationA8212;Atestroomwiththefollowingdimensions:3.66by2.44by2.44mhigh(12by8by8ft).TestConfigurationB8212;Atestroomwiththefollowingdimensions:3.66by3.05by2.44mhigh(12by10by8ft).TestConfigurationC8212;Anopencalorimeter(orfurniturecalorimeter).Roomsofotherdimensionsareacceptablewhereithasbeenshownthatequivalenttestresultsareobtained.Measurementsinthethreetestconfigurationslistedin5.6havebeenshowntogivesimilarresultsforheatreleaseintheductandmasslossuptoarateofheatreleaseof600kW(1).Measurementsoftemperatures,gasconcentrations,andsmokeobscurationintheroomaredependentonroomsize.Studiesontheflammabilityperformanceoffurnitureindicatethatbench-scalefiretestsareusefulforpreliminaryevaluationsofcomponentmaterialsforsubstitutionpurposes(seeAppendixX2).Limitations:Thistestmethodisnotapplicabletoignitionbycigarettesorbyanyothersmolderingsource.Theignitionsourceinthistestmethodisaflamingsource.Moreover,thisparticularignitionsourcehasbeenshowntobeabletoprovideadistinctionamongdifferentkindsofstackedchairs.However,thefractionofactualflamingstackedchairfiresoccurringwithignitionsmoreorlessintensethanthatusedhereisnotknown.Itisnotknownwhethertheresultsofthistestmethodwillbeequallyvalidwhenstackingchairsareburnedunderconditionsdifferentfromthosespecified.Inparticular,itisunclearwhethertheuseofadifferen.........
【中国标准分类号】:Y80
【国际标准分类号】:97_140
【页数】:23P.;A4
【正文语种】:英语