ASTM E 2019-2002 空气中尘雾最小点火能量的标准试验方法

上一篇: ASTM F 2193-2002 脊锥骨外科组织固定用构件的标准规范和试验方法
下一篇: ASTM E 2211-2002 电子个人(用户)医用记录仪的用户和供应商之间规则的标准实施规程

【英文标准名称】:Recording.Helical-scandigitalvideocassetterecordingsystemusing6,35mmmagnetictapeforconsumeruse(525-60,625-50,1125-60and1250-50systems).DTVformat
【原文标准名称】:录像.家用6.35mm螺旋扫描数字盒式录像系统(525-60,625-50,1125-60和1250-50系统).DTV格式
【标准号】:BSEN61834-10-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-11-30
【实施或试行日期】:2001-11-30
【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】:位流;信息块格式;盒式磁带;数据块;数据结构;数字的;数字记录法;数字录制技术;数字电视;尺寸规格;家用的;数字电视(DTV);娱乐电子学;螺旋扫描记录(法);家用设备;家用;磁带记录;磁带;数字标志;操作;位置;记录设备部件;记录系统;规范(验收);电视;陆地的;磁道间距;家用盒式录象机制式;盒式录象带;视频记录;录像系统;磁带录像机;录像磁带
【英文主题词】:Bitstreams;Blockformats;Cassettes(magnetictapes);Datablocks;Datastructures;Digital;Digitalrecordingmethods;Digitalrecordingtechnique;Digitaltelevision;Dimensions;Domestic;DTV;Entertainmentelectronics;Helicalscanrecording;Householdequipment;Householduse;Magnetictaperecordings;Magnetictapes;Numericaldesignations;Operation;Position;Recordingequipmentcomponents;Recordingsystems;Specification(approval);Television;Terrestrial;Trackpitch;VHS;Videocassettes;Videorecording;Videorecordingsystems;Videotaperecorders;Videotaperecordings
【摘要】:ThispartofIEC61834specifiesthecontent,formatandrecordingmethodforthedatablocksformingthehelicalrecordsonthetapecontainingaudio,videoandsystemdata.ThispartdescribesthespecificationsfortherecordingofsingleDTVprogrammes.TheDTVdataisdeliveredtothedigitalvideocassetterecorderviaadigitalinterfaceorbyabuilt-intuner(IRD).TheDTVdataconsistsofanMPEG2transportstreamcontainingoneormoreprogrammes.InDTV,videosignalcodingisbasedonMPEG2.Oneprogrammemayconsistofonevideobitstreamorseveralaudiobitstreamsanddatabitstreams.DuetothevariedbitratesofsingleDTVprogrammes,severalrecordingmodesarespecifiedinordertomakeefficientuseofthestoragecapacityofthedigitalvideocassetterecorder.InadditiontothenormalplaydatastreamofDTVrecording,oneortwospecialtrickplaydatastreamsmayoptionallybegeneratedandrecordedinthevideoarea.Inthispart,thedatastructureofatrackisdefinedbyAPT=000bwhichconsistsoffourareasasdescribedin4.3.2ofIEC61834-1andAP1=AP3=000b.ThedatastructureofMICisthesameasinclause10ofIEC61834-2.
【中国标准分类号】:M71
【国际标准分类号】:33_160_40
【页数】:46P;A4
【正文语种】:英语


【英文标准名称】:Arcweldingequipment-Limiteddutymanualmetalarcweldingpowersources
【原文标准名称】:电弧焊设备.有限任务手动金属电弧焊电源
【标准号】:BSEN60974-6-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-04-17
【实施或试行日期】:2003-04-17
【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】:电弧焊接;断电器;圆形持续因数;定义;尺寸选定;电接触保护;电力系统;电气工程;电气安全;电子电源;故障电流;手动电弧焊;无载电压;防电击;安全工程;安全要求;规范(验收);温升试验;试验;热的;热应力;焊接;焊接电流;焊接工程
【英文主题词】:Arcwelding;Cutoffdevice;Cyclicdurationfactors;Definition;Dimensioning;Electriccontactprotection;Electricpowersystems;Electricalengineering;Electricalsafety;Electronicpowersupplies;Faultcurrents;Manualarcwelding;No-loadvoltages;Protectionagainstelectricshocks;Safetyengineering;Safetyrequirements;Specification(approval);Temperature-risetests;Testing;Thermal;Thermalstress;Welding;Weldingcurrent;Weldingengineering
【摘要】:ThispartofIEC60974isapplicabletopowersourceswithathermalcut-outdeviceformanualmetalarcweldingwithlimitedduty.Theseweldingpowersourcesaremainlyusedbylaymen.ThispartofIEC60974specifiessafetyrequirementsforconstructionandperformancerequirementsofweldingpowersources,limitedtoaratedmaximumweldingcurrentof160A.ThispartofIEC60974isnotapplicableto:—rotatingweldingpowersources;—weldingpowersourceswithremotecontrol;—weldingpowersourcesincorporatingfrequencyconversion.
【中国标准分类号】:J64
【国际标准分类号】:25_160_30
【页数】:24P.;A4
【正文语种】:英语