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【英文标准名称】:Acoustics-Hearingprotectors-Part3:Measurementofinsertionlossofear-mufftypeprotectorsusinganacoustictestfixture
【原文标准名称】:声学.听力保护器.第3部分:用声学试验器具测量耳罩式保护器的插入损耗
【标准号】:ISO4869-3-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-07
【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】:声学测量;声学测试;声学;定义;耳机上的橡皮护套;护耳器;耳罩式保护装置;检验;测量;测量技术;方法;噪声降低;规程;质量控制;安全装置;隔音;声强;声级;测试;试验
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Closedtestrooms;Convergence;Data;Definitions;Earmuffs;Earprotectors;Ear-mufftypewearingprotectors;Inspection;Insulations;Measurement;Measuringequipment;Measuringtechniques;Methods;Microphones;Noise;Noisereduction;Pressingforce;Procedures;Qualitycontrol;Safetydevices;Shafts;Signals;Sound;Soundinsulation;Soundintensity;Soundlevels;Soundpressurelevel;Testapparatus;Testing;Tests;Tunnels
【摘要】:ThispartofISO4869specifiesamethodformeasuringtheinsertionlossofear-mufftypehearingprotectorsusinganacoustictestfixture.Themethodisapplicabletotheinvestigationofproductionspreadsofperformanceaspartoftypeapprovalorcertificationprocedures,andtotheinvestigationofthechangeofperformancewithage.Itisintendedtoensurethatear-muffhearingprotectorsamplessubmittedforsubjectivetestingofattenuationaccordingtoISO4869-1haveperformancestypicalofthetype.ThemethodspecifiedinthispartofISO4869isnotapplicableasthebasictestfortypeapproval.Performancedataobtainedbythismethodarenotintendedtobequotedasrepresentingthereal-earsoundattenuationofanear-muff,northeprotectionprovidedbytheear-muff.Forthetestingofcertainear-muffs(suchasthoseattachedtosafetyhelmets,orthosewithcontouredearcupsorear-cushions,orsupra-auralear-muffs),theproceduredescribedinthispartofISO4869mightneedtobemodified.
【中国标准分类号】:L31
【国际标准分类号】:13_340_20
【页数】:11P;A4
【正文语种】:英语