您的位置: 标准下载 » 国际标准 » BS 英国标准 »

BS EN 60645-6-2010 电声学.听力测定设备.听觉发射的测量仪器

时间:2024-05-29 20:36:25 来源: 标准资料网 作者:标准资料网 阅读:9001
下载地址: 点击此处下载
【英文标准名称】:Electroacoustics.Audiometricequipment.Instrumentsforthemeasurementofotoacousticemissions
【原文标准名称】:电声学.听力测定设备.听觉发射的测量仪器
【标准号】:BSEN60645-6-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2010-02-28
【实施或试行日期】:2010-02-28
【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】:声学的;声信号;声学试验;声学;调节;听度;听力图;听力学;听力计;听力测定;听觉阈;校准;仪器等级;可比性;比较分析法;比较测量;定义;诊断;耳;电气工程;电声学;电医学;排放;排放测量;等效性;头戴耳机;听力试验;听觉;高频;文字书写;扬声器;测量;测量条件;测量仪器;测量系统;测量技术;医用电子学;医疗技术学;耳声;物理性能;测头;探子(医疗器械);射频设备;额定值;短期测量;信号电平;声级;声音传播;声换能器;规范(验收);测试信号
【英文主题词】:Acoustic;Acousticsignals;Acoustictesting;Acoustics;Adjustments;Audiobility;Audiograms;Audiology;Audiometers;Audiometry;Auditorythreshold;Calibration;Classesofapparatus;Comparability;Comparisonanalysis;Comparisonmeasurement;Definitions;Diagnosis;Ears;Electricalengineering;Electroacoustics;Electromedicine;Emission;Emissionmeasurement;Equivalence;Headphones;Hearingabilitytests;Hearing(auditoryperception);Highfrequencies;Letterings;Loudspeakers;Measurement;Measurementconditions;Measuringinstruments;Measuringsystems;Measuringtechniques;Medicalelectronics;Medicaltechnology;Otoacoustic;Physicalproperties;Probes;Probes(medicalinstruments);Radiofrequencyapparatus;Ratings;Short-termmeasurement;Signallevel;Soundlevels;Soundpropagation;Soundtransducer;Specification(approval);Testsignals;Testing
【摘要】:ThispartofIEC60645appliestoinstrumentsdesignedprimarilyforthemeasurementofotoacousticemissionsinthehumanexternalacousticmeatusevokedbyacousticprobepulsesortones.Thisstandarddefinesthecharacteristicstobespecifiedbythemanufacturer,laysdownperformancespecificationsfortwotypesofinstruments1andspecifiesthefunctionstobeprovidedonthesetypes.ThispartofIEC60645describesmethodsoftesttobeusedforapprovaltestingandguidanceonmethodsforundertakingroutinecalibration.ThepurposeofthispartofIEC60645istoensurethatmeasurementsmadeundercomparabletestconditionswithdifferentinstrumentscomplyingwiththestandardwillbeconsistent.Instrumentswhichprovideameasurementfunctionnotspecificallywithinthescopeofthestandardshallstillcomplywithanyrelevantrequirements.Thisstandardisnotintendedtorestrictdevelopmentorincorporationofnewfeatures,nortodiscourageinnovativeapproaches.
【中国标准分类号】:L31
【国际标准分类号】:13_140
【页数】:20P;A4
【正文语种】:英语


【英文标准名称】:FirePumpReliefValves(ProposaldatedAugust15,2008)
【原文标准名称】:消防泵减压阀
【标准号】:ANSI/UL1478-2004
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:消防器械;防火;消防泵;泵;减压阀;阀门
【英文主题词】:Fireextinguishingdevices;Fireprotection;Firepumps;Pumps;Reliefvalves;Valves
【摘要】:Theserequirementscoverdirectacting(springloaded)andpilotoperatedfirepumpreliefvalvesofnominal3/4inchsizeandlarger,intendedforuseinwatersupplysystemsforfireprotectionservice.RequirementsfortheinstallationanduseofthesevalvesareincludedintheStandardfortheInstallationofCentrifugalFirePumps,NFPA20.
【中国标准分类号】:C84
【国际标准分类号】:13_220_20;23_060_10
【页数】:
【正文语种】:英语


【英文标准名称】:Bituminousmixtures-Materialspecifications-PorousAsphalt
【原文标准名称】:沥青混合物.材料规范.多孔隙沥青
【标准号】:BSEN13108-7-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-06-30
【实施或试行日期】:2006-06-30
【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】:地沥青;粘合剂;校正;CE标志;CE标记;组分;合格;建筑;施工材料;装配产品;定义;术语;测定;文献;灌充器械;混合的材料;数学计算;矿质集料;粒度分布;渗透性;性能试验;孔隙率;生产;质量;道路建筑;软化点;规格;规范(验收);规范;结构体系;表层;试验
【英文主题词】:Asphalts;Bindingagents;Calibration;CEmark;CEmarking;Composition;Conformity;Construction;Constructionmaterials;Constructionalproducts;Definition;Definitions;Determination;Documentations;Fillinginstruments;Materialstobemixed;Mathematicalcalculations;Mineralaggregates;Particlesizedistribution;Penetration;Performancetests;Porosity;Production;Quality;Roadconstruction;Softeningpoint;Specification;Specification(approval);Specifications;Structuralsystems;Surfacelayers;Testing
【摘要】:ThisEuropeanStandardspecifiesrequirementsformixturesofthemixgroupPorousAsphaltforuseonroads,airfieldsandothertraffickedareas.NOTEAmixturespecificationderivedfromthisEuropeanStandardcanbeusedeithertodeclaretheconformityofamixturewithknownrequirementsortomakeknownwhatthoserequirementsare.ThisEuropeanStandardincludesrequirementsfortheselectionoftheconstituentmaterials.ItisdesignedtobereadinconjunctionwithEN13108-20andEN13108-21.PorousAsphaltmixtureswithchemicalmodifiedbindersnotcoveredbyEN14023arenotcoveredbythisEuropeanStandard.
【中国标准分类号】:E43
【国际标准分类号】:93_080_20
【页数】:32P.;A4
【正文语种】:英语