ISO/TR 4869-4-1998 声学护听器第4部分:与电平有关声音恢复耳罩的有效声压级的测量

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【英文标准名称】:Acoustics-Hearingprotectors-Part4:Measurementofeffectivesoundpressurelevelsforlevel-dependentsound-restorationear-muffs
【原文标准名称】:声学护听器第4部分:与电平有关声音恢复耳罩的有效声压级的测量
【标准号】:ISO/TR4869-4-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-10
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC43
【标准类型】:()
【标准水平】:()
【中文主题词】:测量;护耳器;声学试验;耳罩式保护装置;声级计;试验;试验;定义;安全装置;隔音;声强;声学
【英文主题词】:Acoustictesting;Acoustics;Definitions;Earprotectors;Ear-mufftypewearingprotectors;Electroacoustics;Measurement;Measuringtechniques;Safetydevices;Soundinsulation;Soundintensity;Soundlevels;Sound-levelmeters;Testing;Testingconditions
【摘要】:ThisTechnicalReportspecifiesaphysicaltestmethodforlevel-dependentsound-restorationear-muffs.Thephysicalmeasurementsaremadewiththeacoustictestfixture(ATF)accordingtoISO/TR4869-3orwithasuitableheadandtorsosimulator(HATS)withasuitableacousticisolation(seeclause7).TheresultsofthesetestsincombinationwiththeresultsfromtheISO4869-1testscanbeusedtoestimatetheeffectiveA-weightedsoundpressurelevelwhensoundrestorationear-muffsareworn.Themethoddescribedisnotsuitableformeasurementoftheeffectivesoundpressurelevelunderear-muffsinthecaseofimpulsivenoisenorforactivenoisereductionear-muffs.
【中国标准分类号】:C73
【国际标准分类号】:13_340_20
【页数】:7P.;A4
【正文语种】:英语