【英文标准名称】:UniversalDecimalClassification.Englishfulledition.Economics
【原文标准名称】:国际十进分类法.英文版全表.经济学
【标准号】:BS1000[33]-1985
【标准状态】:作废
【国别】:英国
【发布日期】:1985-10-31
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:经济学;土地;人员;就业;国民经济;国际经济;劳动力;金融;陆地;分类系统;住房建筑;国际十进分类法
【英文主题词】:housing;personnel;finance;classificationsystems;land;economics;universaldecimalclassification;labour;employment;nationaleconomy;internationaleconomics
【摘要】:
【中国标准分类号】:A14
【国际标准分类号】:01_140_20
【页数】:124P;A4
【正文语种】:英语


【英文标准名称】:Soundsystemequipment.Headphonesandearphones
【原文标准名称】:声系统设备.头戴受话器及耳机
【标准号】:BSEN60268-7-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-06-30
【实施或试行日期】:2011-06-30
【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】:
【英文主题词】:Acoustics;Amplifiers;Audioappliances;Classification;Definitions;Earphones;Electricalengineering;Electroacoustics;Ergonomics;Headphones;Marking;Measurement;Measurementconditions;Measuringtechniques;Properties;Simulators;Userinformation
【摘要】:ThispartofIEC60268,isapplicabletoheadphones,headsets,earphonesandearsets,intendedtobeusedon,orin,thehumanear.Italsoappliestoequipment,suchaspre-amplifiers,passivenetworksandpowersupplieswhichformanintegralpartoftheheadphonesystem.Itdoesnotdealwith:a)safety,forwhichreferenceshouldbemadetoIEC60065oranotherappropriatestandard;b)thecharacteristicsofmicrophonesofheadsets,forwhichreferenceshouldbemadetoIEC60268-4;c)earphonesandotherdevicesforhearingaids,forwhichreferenceshouldbemadetoIEC60118-0;d)headphonesforaudiometry;e)headphonesandotherdeviceswhichformpartofanactiveear-defendersystem,althoughsomeofitsprovisionsmaybeapplicable.Thisstandardspecifiesthecharacteristicswhichshouldbeincludedbythemanufacturerinspecifications,andrelevantmethodsofmeasurement.Itincludesaclassificationofthedifferenttypesofearphone,mainlycharacterizedbythewayinwhichthetransduceriscoupledacousticallytotheear,andaclassificationcodewhichmayalsobeusedformarking.
【中国标准分类号】:M72
【国际标准分类号】:33_160_50
【页数】:52P.;A4
【正文语种】:英语