【英文标准名称】:Electroacoustics-Simulatorsofhumanheadandear-Part3:Acousticcouplerforthecalibrationofsupra-auralearphonesusedinaudiometry
【原文标准名称】:电声学人的头和耳模拟器第3部分:用于听力测定计的超听力耳机校正用声耦合器
【标准号】:IEC60318-3-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-08
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC29
【标准类型】:()
【标准水平】:()
【中文主题词】:耳机;失支听觉;听力测定;耦合器;模拟器;参考级;声强;校正;声耦合器;电声学;助听器;头戴送受话器;振动工程;电气工程;声压级;听力计;声学;尺寸;频率;定义
【英文主题词】:Acousticcouplers;Acoustics;Audiometers;Audiometry;Bodies;Calibration;Couplers;Definitions;Dimensions;Earphones;Ears;Electricalengineering;Electroacoustics;Environment;Environmentalcondition;Frequencies;Head(anatomy);Headphones;Hearingaids;Lossofhearing;Microphones;Pressurecompensation;Pressureforce;Pure-toneaudiometers;Referencelevels;Simulators;Soundintensity;Soundpressurelevel;Vibrationengineering
【摘要】:ThisInternationalStandarddescribesanacousticcouplerforloadingsupra-auralaudiometricearphonesasspecifiedinISO389-1withaspecifiedacousticimpedance,whencalibratingaudiometers,inthefrequencyrangeof125Hzto8000Hz.Thesoundpressuredevelopedbyanearphoneisnot,ingeneral,thesameinthecouplerasinaperson'sear.However,theIECrecommendsitsuseasasimpleandreadymeansfortheexchangeofspecificationsonaudiometersandforthecalibrationofspecifiedearphonesusedinaudiometry.note:1)Tobepublished.
【中国标准分类号】:L31
【国际标准分类号】:17_140_50
【页数】:17P.;A4
【正文语种】:英语


【英文标准名称】:Windows,doors,andshutters-Explosionresistance-Requirementsandclassification-Rangetest
【原文标准名称】:门窗和遮板.防爆.要求和分类.等级试验
【标准号】:BSEN13123-2-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-03-05
【实施或试行日期】:2004-03-05
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:压力波;窗;爆炸压力;露天;端接;爆炸;防爆;音域试验;户外;门;穿透;组件;建筑;规范(验收);抗爆;分类;试验
【英文主题词】:
【摘要】:ThisEuropeanStandardspecifiesthecriteriawhichwindows,doorsandshuttersshallsatisfytoachieveaclassificationwhensubmittedtothetestmethoddescribedinEN13124-2.ThisEuropeanStandardconcernsatestmethodagainstblastwavesinopenairresultingfromhighexplosivesthatcanbecarriedbyhandandplacedafewmetresfromatarget.Atsuchclosedistancesblastvaluesvaryacrossanattackface.Controlledmeasurementoftheactualblastonthefaceofthetestspecimenbeingdifficult,costlyandsubjecttoinaccuracy,consistencyoftheblastforcesisthereforecontrolledinthisEuropeanStandardbythecharacteristicsoftheexplosivechargeanditslocation.ThisEuropeanStandardcoversonlythebehaviourofthecompleteunitincludinginfill,frameandfixingsastested.Itgivesnoinformationontheabilityofthesurroundingwallorbuildingstructuretoresistthedirectortransmittedforces.Ifthewindows,doorsandshuttersareintendedforspecificconditionsofclimate,specifictestconditionscanberequired(seeclause4).ThisEuropeanStandardgivesnoinformationontheexplosionresistancecapacityofthewallorothersurroundingstructure.
【中国标准分类号】:P32
【国际标准分类号】:13_230;91_060_50
【页数】:8P;A4
【正文语种】:英语