【英文标准名称】:Tanksforthetransportofdangerousgoods-Metallicpressuretanks-Designandconstruction
【原文标准名称】:危险物品运输用容器.金属压力容器.设计和建造
【标准号】:BSEN14025-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-01-07
【实施或试行日期】:2004-01-07
【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】:设计;壁厚;安装设备;生产;闭塞物;危险物品;尺寸;工作压力;定义;作标记;开口;负荷;危险物品的运输;维护;压实;检修;金属容器;容器;槽罐设备;金属材料;额定值;应力;建筑工程;蒸气压力;水箱;装置;气体;材料性能;压力;机动车燃料;运输;材料;操纵;降低压力的;金属;密封性;压力容器;槽罐车;数学计算;规范(验收)
【英文主题词】:design;wallthicknesses;mountingdevices;production;closures;dangerousgoods;dimensions;workingpressures;definition;marking;ports(openings);loading;transportofdangerousgoods;openings;maintenance;compactness;repairs;metalcontainer;containers;tankinstallations;metallicmaterials;ratings;stress;constructions;vapourpressure;tanks(containers);installations;gases;materialproperties;pressure;automotivefuels;definitions;transport;materials;handlings;depressurized;metals;tightness;pressurevessels;tanktrucks;mathematicalcalculations;specification(approval)
【摘要】:ThisEuropeanStandardspecifiestheminimumrequirementsforthedesignandconstructionofmetallicpressuretankshavingamaximumworkingpressureexceeding50kPa(0,5bar)forthetransportofdangerousgoodsbyroadandrail.Thisstandardincludesrequirementsforopenings,closuresandstructuralequipment;itdoesnotcoverrequirementsofserviceequipment.ForroadtankersforthetransportofLPGseeEN12493.FortanksforthetransportofcryogenicliquidsseeEN13530-1and-2.
【中国标准分类号】:J74
【国际标准分类号】:23_020_20;13_300
【页数】:56P.;A4
【正文语种】:英语


【英文标准名称】:Cableddistributionsystemsfortelevisionandsoundsignals-Headendequipment
【原文标准名称】:电视和声音信号电缆分配系统.输入设备
【标准号】:BSEN50083-5-2002
【标准状态】:作废
【国别】:英国
【发布日期】:2002-02-06
【实施或试行日期】:2002-02-06
【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】:电视网;电视系统;电信系统;电信;等级(质量);有线传输(电信);电波测量;通信网;电缆电视;声信号;广播网;天线;视频信号;性能;电气试验;电学测量;可视信号;接收机;电子设备及元件;通信设备
【英文主题词】:Audiosignals;Broadcastengineering;Broadcastsignals;Broadcasting;Cabledistributioncubicles;Cabledistributionsystems;Cabletelevision;Cablednetworks;Central-antennatelevision;Definition;Definitions;Distributionsystems;Electromagneticcompatibility;EMC;Intermodulation;Measurement;Measuringtechniques;Noisebandwidths;Noisemeasurements;Properties;Ratings;Soundbroadcasting;Soundtransmission;Specification(approval);Television;Televisionbroadcasting;Televisiontechnology;Terminalstations;Transmission;Transmissiontechnique;Visionsignals
【摘要】:1GeneralStandardsofEN50083seriesdealwithcablenetworksfortelevisionsignals,soundsignalsandinteractiveservicesincludingequipment,systemsandinstallations·forheadendreception,processinganddistributionoftelevisionandsoundsignalsandtheirassociateddatasignalsand·forprocessing,interfacingandtransmittingallkindsofsignalsforinteractiveservicesusingallapplicabletransmissionmedia.Allkindsofnetworkslike·CATV-networks,·MATV-networksandSMATV-networks,·Individualreceivingnetworksandallkindsofequipment,systemsandinstallationsinstalledinsuchnetworks,arewithinthisscope.Theextentofthisstandardizationworkisfromtheantennas,specialsignalsourceinputstotheheadendorotherinterfacepointstothenetworkuptothesystemoutletortheterminalinput,wherenosystemoutletexists.Thestandardizationofanyuserterminals(i.e.tuners,receivers,decoders,multimediaterminalsetc.)aswellasofanycoaxialandopticalcablesandaccessoriesthereforisexcluded.2Specificscopeofthispart5Thisstandarddefinesthecharacteristicsofequipmentusedintheheadendsofterrestrialbroadcastandsatellitereceivingsystems(withoutsatelliteoutdoorunitsandwithoutthosebroadbandamplifiersintheheadendasdescribedinEN50083-3).ThesatelliteoutdoorunitsforFSSaredescribedinstandardETS300158,forBSSinstandardETS300249.Testmethodsforbothtypes(FSSandBSS)ofsatelliteoutdoorunitsarelaiddowninETS300457.Thisstandard·coversthefrequencyrange5MHzto3000MHz;·identifiesperformancerequirementsforcertainparameters;·laysdowndatapublicationrequirementsforcertainparameters;·stipulatesmethodsofmeasurements;·introducesminimumrequirementsdefiningqualitygrades(Q-grades).Asfaraspossiblethisstandardonlydealswiththeinterfacesbetweenheadendequipmentandonlyexplainsthefunctionoftheequipmentifthisisnecessarytosupportthedescriptionoftheinterfaces.Coder,transcoder,encrypter,decrypteretc.arenotdescribedinthisstandard.Ifsuchequipmentareusedinheadends,therelevantparametersforRF,video,audioanddatainterfaceshavetobemet.Accordingtothedefinitionsinclause3theheadendsaredividedintothefollowingthreequalitygrades:Grade1:localheadend/remoteheadendGrade2:hubheadendGrade3:MATVheadend/individualreceptionheadendPracticalexperiencehasshownthesetypesmeetmostofthetechnicalrequirementsnecessaryforsupplyingaminimumsignalqualitytothesubscribers.Thisclassificationshallnotbeconsideredasarequirementbutastheinformationforusersandmanufacturersontheminimumqualitycriteriaofthematerialrequiredtoinstallnetworksofdifferentsizes.Thesystemoperatorhastoselectappropriatematerialtomeettheminimumsignalqualityatthesubscriber'soutletandtooptimisecostperformance,takingintoaccountthesizeofthenetworkandlocalcircumstances.
【中国标准分类号】:M60
【国际标准分类号】:33_060_40
【页数】:58P;A4
【正文语种】:英语