BS EN 60268-7-2011 声系统设备.头戴受话器及耳机

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【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

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上一篇: BS EN 60191-6-17-2011 半导体器件的机械标准化.表面安装半导体器件封装外形图绘制的一般规则.堆栈封装的设计指南.细间距球栅阵列和细间距矩栅阵列(P-PFBGA和PPFLGA)
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【英文标准名称】:Watermeters-Part3:Testmethodsandequipment;GermanversionEN14154-3:2005+A2:2011
【原文标准名称】:水表.第3部分:试验方法和设备;德文版本EN14154-3-2005+A2-2011
【标准号】:DINEN14154-3-2011
【标准状态】:现行
【国别】:德国
【发布日期】:2011-06
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Bolting;Calibration;Characteristics;Classificationsystems;Coldwater;Coldwaterconduit;Coldwatermeter;Commissioning;Counters;Designcertifications;Designations;Drinkingwaterlines;Electronic;Electronicinstruments;Fitnessforpurpose;Flowmeasurements;Flowmeters;Frequencyranges;Guidelines;Hot-watermeters;Indicatingdevices;Indicationdevice;Installationinstructions;Installations;Marking;Measurement;Measuringtechniques;Meteringmechanism;Meters;Metrology;Nozzledischarge;Pollutioncontrol;Potablewater;Pressuredrops;Productspecification;Properties;Ratedflow;Ratedpressure;Ratings;Repairs;Scope;Selection;Specification(approval);Specifications;Telltales;Testmethods;Testparameter;Testing;Testingdevices;Thread-connections;Water;Waterconsumption;Watermeters;Waterpipelines;Waterpractice;Watersupply
【摘要】:Thisdocumentappliestowatermetersintendedforresidential,commercial,lightindustrialandindustrialuse,andspecifiesthetestparametersandthetestmethodsforwatermeters,irrespectiveofthedesigntechnologies,asspecifiedinEN14154-1-2005+A2,usedtometertheactualvolumeofcleancoldpotablewaterorheatedwater,flowingthroughafullycharged,closedconduit.Thesewatermetersshallincorporatedevices,whichindicatetheintegratedvolume.InthecasewherewatermetershavingavalueofQ＞160m/h,thetestschedulemaymakeprovisionsformodificationoftheReferenceConditions,tomeetindividualtestlaboratorylimitations,whentestingspecificallyforenduranceorforperformanceunderInfluenceQuantities.Metersthustestedshallbemarkedsoastounambiguouslyindicatepartcompliancewiththisdocument.Toaugmentthismarkingthemetermanufacturershall,inaddition,beobligedtofullydisclosethespecificnoncompliance(s)duetothetestlaboratorylimitations.
【中国标准分类号】:Q81
【国际标准分类号】:91_140_60
【页数】:90P.;A4
【正文语种】:英语

Product Code:SAE AMS4026
Title:Aluminum Alloy, Sheet and Plate, 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061; -T4 Sheet, -T451 Plate), Solution Heat Treated and Naturally Aged
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers an aluminum alloy in the form of sheet and plate.