NF X11-635-1985 粒径分析.粒度分布代表.参考模型
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【英文标准名称】:Sizeanalysis-Representationofparticlesizedistributions-Referencemodels
【原文标准名称】:粒径分析.粒度分布代表.参考模型
【标准号】:NFX11-635-1985
【标准状态】:现行
【国别】:法国
【发布日期】:1985-06-01
【实施或试行日期】:
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:A42
【国际标准分类号】:
【页数】:19P.;A4
【正文语种】:法语
【英文标准名称】:StandardTestMethodforSmokeObscurationofInsulatingMaterialsContainedinElectricalorOpticalFiberCablesWhenBurninginaVerticalCableTrayConfiguration
【原文标准名称】:电缆或光缆的绝缘材料在立式电缆槽结构中燃烧时的烟昏暗度的标准试验方法
【标准号】:ASTMD5424-2010
【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】:D09.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:cable;cabletray;carbondioxide;carbonmonoxide;char;electricalcable;fire;fire-testresponse;flame;heatrelease;heatreleaserate;ignition;opticaldensity;opticalfibercable;oxygenconsumptioncalorimetry;smokeobscuration;
【摘要】:Thistestmethodprovidesameanstomeasureavarietyoffire-test-responsecharacteristicsassociatedwithsmokeobscurationandresultingfromburningtheelectricalinsulatingmaterialscontainedinelectricaloropticalfibercables.Thespecimensareallowedtoburnfreelyunderwellventilatedconditionsafterignitionbymeansofapropanegasburner.Smokeobscurationquantifiesthevisibilityinfires.Thistestmethodisalsosuitableformeasuringtherateofheatreleaseasanoptionalmeasurement.Therateofheatreleaseoftenservesasanindicationoftheintensityofthefiregenerated.Otheroptionalfire-test-responsecharacteristicsthataremeasurablebythistestmethodareusefultomakedecisionsonfiresafety.Themostimportantgaseouscomponentsofsmokearethecarbonoxides,presentinallfires.Theyaremajorindicatorsofthetoxicityoftheatmosphereandofthecompletenessofcombustionandareoftenusedaspartoffirehazardassessmentcalculationsandtoimprovetheaccuracyofheatreleasemeasurements.Othertoxicgases,whicharespecifictocertainmaterials,arelesscrucialfordeterminingcombustioncompleteness.TestLimitations:Thefire-test-responsecharacteristicsmeasuredinthistestmethodarearepresentationofthemannerinwhichthespecimenstestedbehaveundercertainspecificconditions.Donotassumetheyarerepresentativeofagenericfireperformanceofthematerialstestedwhenmadeintocablesoftheconstructionunderconsideration.Inparticular,itisunlikelythatthistestmethodisanadequaterepresentationofthefirebehaviorofcablesinconfinedspaces,withoutabundantcirculationofair.Thisisanintermediate-scaletest,andthepredictabilityofitsresultstolargescalefireshasnotbeendetermined.Someinformationexiststosuggestthatithasbeenvalidatedagainstsomelarge-scalescenarios.1.1Thisisafire-test-responsestandard.1.2Thistestmethodprovidesameanstomeasurethesmokeobscurationresultingfromburningelectricalinsulatingmaterialscontainedinelectricaloropticalfibercableswhenthecablespecimens,excludingaccessories,aresubjectedtoaspecifiedflamingignitionsourceandburnfreelyunderwellventilatedconditions.1.3Thistestmethodprovidestwodifferentprotocolsforexposingthematerials,whenmadeintocablespecimens,toanignitionsource(approximately20kW),fora20mintestduration.Useittodeterminetheflamepropagationandsmokereleasecharacteristicsofthematerialscontainedinsingleandmulticonductorelectricaloropticalfibercablesdesignedforuseincabletrays.1.4Thistestmethoddoesnotprovideinformationonthefireperformanceofelectricaloropticalfibercablesinfireconditionsotherthantheonesspecificallyusedinthistestmethodnordoesitmeasurethecontributionofthecablestoadevelopingfirecondition.1.5Datadescribingtheburningbehaviorfromignitiontotheendofthetestareobtained.1.6Theproductionoflightobscuringsmokeismeasured.1.7Theburningbehaviorisdocumentedvisually,byphotographicorvideorecordings,orboth.1.8Thetestequipmentissuitableformakingother,optional,measurements,includingtherateofheatreleaseoftheburningspecimen,byanoxygenconsumptiontechniqueandweightloss.1.9Anothersetofoptionalmeasurementsaretheconcentrationsofcertaintoxicgasspeciesinthecombustiongases.1.10ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.(See【英文标准名称】:StandardTestMethodforDustControlMaterialonCalcinedPetroleumCoke
【原文标准名称】:煅烧石油焦用防尘材料的标准试验方法
【标准号】:ASTMD4930-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:焦炭;防尘;溶剂萃取方法;试验
【英文主题词】:Coke;Dustcontrol;Solventextractionmethods;Testing
【摘要】:
【中国标准分类号】:E44
【国际标准分类号】:75_160_10
【页数】:3P;A4
【正文语种】:英语
