BS AU 227-1988 商用车辆和公共汽车交流发电机圆轴端头和轮毂尺寸规范
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来源:标准资料网
【英文标准名称】:Specificationfordimensionsofcylindricalshaftendsandhubsforalternatorsforcommercialvehiclesandbuses
【原文标准名称】:商用车辆和公共汽车交流发电机圆轴端头和轮毂尺寸规范
【标准号】:BSAU227-1988
【标准状态】:作废
【国别】:英国
【发布日期】:1988-08-31
【实施或试行日期】:1988-08-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:商用车辆;客车;交流发电机;运载工具部件;发电机;道路车辆零部件;轴端;发动机部件;客运道路车辆;尺寸;道路车辆;轮毂;圆柱形;电气设备;尺寸公差;键;公差(测量)
【英文主题词】:Alternating-currentgenerators;Bosses;Buses;Buses(vehicles);Commercialroadvehicles;Commercialvehicles;Cylindricalshape;Dimensions;Electricgenerators;Electricalequipment;Generators;Hubs;Motorvehicles;Roadvehicles;Shaftends;Tolerances(measurement);Vehiclecomponents
【摘要】:ThisInternationalStandardspecifiesthedimensionalrequirementsofcylindricalshaftendsandhubsforinterchangeabilityofalternators.ThespecificationsofthisInternationalStandardapplytocylindricalshaftends(seefigure1and2)andhubs(seefigure3)foralternators.
【中国标准分类号】:T36
【国际标准分类号】:43_040_10
【页数】:4P;A4
【正文语种】:英语
【英文标准名称】:Recording-Helical-scandigitalvideocassetterecordingsystemusing6,35mmmagnetictapeforconsumeruse(525-60,625-50,1125-60and1250-50systems)-Part6:SDLformat
【原文标准名称】:录音用户用(525-60、625-50、1125-60和1250-50系统)6.35mm磁带的螺旋扫描数字视频盒式录音系统第6部分:SDL格式
【标准号】:IEC61834-6-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-08
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:记录系统;磁带记录;娱乐电子学;盒式磁带;盒式录象带;操作花费;压缩;规范(验收);螺旋扫描记录(法);视频记录;数字录制技术;记录;数字记录法;数字的;磁带
【英文主题词】:Cassettes(magnetictapes);Compression;Digital;Digitalrecordingmethods;Digitalrecordingtechnique;Entertainmentelectronics;Helicalscanrecording;Magnetictaperecordings;Magnetictapes;Operatingexpenses;Recording;Recordingsystems;Specification(approval);Videocassettes;Videorecording
【摘要】:ThispartofIEC61834describestheformatextension,usinghighercompressiontoincreaserecordingtimeandreducerunningcost.WhileallDVCRsmusthavethecapabilityofrecordingand/orplaybackinSD(SP)mode,thisextensionisoptional.ForthispartofIEC61834,thetrackdatastructureisdefinedbyAPT=000bwhichconsistsoffourareasasdescribedinIEC61834-1,4.3.2andAP1=AP2=AP3=000b.ThedatastructureofMICisasclause10inIEC61834-2.
【中国标准分类号】:M71
【国际标准分类号】:33_160_40
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodforHeatandVisibleSmokeReleaseRatesforMaterialsandProductsUsingaThermopileMethod
【原文标准名称】:热电堆法测定材料和产品热量和可见烟发散度的标准试验方法
【标准号】:ASTME906/E906M-2010
【标准状态】:现行
【国别】:
【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】:E05.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:量热法;着火性;热散发;烟熏模糊;烟释放;燃烧特性-建筑材料;燃烧;防火材料/测试;加热试验-建筑产品;点火-建筑材料;辐射热补;辐射暴露;释放率;屋面材料/应用;烟分析;
【英文主题词】:calorimetry;ignitability;heatrelease;smokeobscuration;smokerelease;Burningcharacteristics--buildingmaterials;Combustion;Fire-resistantmaterials/testing;Heatingtests--buildingproducts;Heatrelease;Ignition--buildingmaterials;Radiant
【摘要】:Thistestmethodprovidesadescriptionofthebehaviorofmaterialspecimensunderaspecifiedfireexposureintermsofthereleaserateofheatandvisiblesmoke.Itispossibletodeterminethechangeinbehaviorofmaterialsandproductswithchangeinheat-fluxexposurebytestingspecimensinaseriesofexposuresthatcoverarangeofheatfluxes.Thedataobtainedforaspecifictestdescribetherateofheatandsmokereleaseofthespecimenwhenexposedtothespecificenvironmentalconditionsandproceduresusedinperformingthattest.Theentireexposedsurfaceofthespecimenwillnotbeburningduringtheprogressiveinvolvementphasewhenpiloted,pointignition(impingement)proceduresareused.Duringtheperiodofprogressivesurfaceinvolvement,releaseratesofheatandsmokearex201C;persquaremetreoforiginalexposedsurfaceareax201D;notx201C;persquaremetreofflameinvolvedsurface.x201D;Theratesofbothheatandsmokereleasearecalculatedpersquaremetreoforiginalsurfaceareaexposed.Ifaspecimenswells,sags,delaminates,orotherwisedeformssothattheexposedsurfaceareachanges,calculatedreleaseratescorrespondtotheoriginalarea,nottothenewsurfacearea.Heat-releasevaluesdependonmodeofignition.Gasphaseignitiongivesamoredimensionallyconsistentmeasureofreleaseratewhenveryrapidorimmediateflameinvolvementofthespecimensurfaceoccurs.However,piloted,pointignitionallowsrelease-rateinformationtobeobtainedatexternalheatfluxfromzerouptothatrequiredforsatisfactorygas-phaseignition,usuallyover20kW/m2externalexposure.Nocorrelationbetweenthetwomodesofpilotedignitionhasbeenestablished.Releaseratesdependonmanyfactors,someofwhichcannotbecontrolled.Itispossiblethatsamplesthatproduceasurfacechar,alayerofadherentash,orthosethatarecompositesorlaminatesdonotattainasteady-statereleaserate.Thermallythinspecimens,thatis,specimenswhoseunexposedsurfacechangestemperatureduringperiodoftest,willnotattainasteady-statereleaserate.Therefore,releaseratesforagivenmaterialwilldepend,forexample,onhowthematerialisused,itsthickness,andthemethodofmounting.Heat-releasevaluesareforthespecificspecimensize(exposedarea)tested.Resultsarenotdirectlyscalabletodifferentexposedsurfaceareasforsomeproducts.Themethodislimitedtospecimensizesofmaterialsinaccordancewith7.1andtoproductsfromwhichitispossibletoobtainatestspecimenrepresentativeoftheproductinactualuse.Thetestislimitedtoexposureofonesurface;therearetwooptionsforexposureorientation:eitherverticalorhorizontal.Ifaheatreleaserateof8kW,whichisequivalentto355kW/m2for150-mm[6-in.]by150-mm[6in.]verticalspecimens,or533kW/m2for100-mm[4-in.]by150-mm[6-in.]horizontalspecimensisexceeded,thereisdangerofcombustionoccurringabovethestack.Nogeneralrelationshipbetweenreleaseratevaluesobtainedfromhorizontallyandverticallyorientedspecimenshasbeenestablished.Conducttestsonspecimensintheforminwhichthematerialisorientedinenduseconditions.Toprovideadditionalinformation,conducttestsinthehorizontalorientationforthosespecimensthatmeltanddripintheverticalorientation.Releaseratemeasurementsprovideusefulinformationforproductdevelopmentbygivingaquantitativemeasureofspecificchangesinfiretestperformancecausedbyproductmodifications.ThistestmethoddiffersinboththemethodofexposureandthecalculationprocedurefromthetechniquesusedinTestMethod
