BS EN ISO 389-5-2006 声学.听力测量设备校准用参考零点.频率为8kHz～16kHz纯音用参考等效阈值声压级

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【英文标准名称】:Acoustics-Measurementofsoundinsulationinbuildingsandofbuildingelements-Part5:Fieldmeasurementsofairbornesoundinsulationoffa?adeelementsandfa?ades
【原文标准名称】:声学.建筑和建筑构件的隔声测量.第5部分:外墙构件和外墙空气声隔声的现场测量
【标准号】:ISO140-5-1998
【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】:声学工程;声音测量;声学特性和现象;声学;空气传播声隔绝;建筑声学;建筑;天花板;外墙板;建筑物;定义;术语;外墙;外观;外立面;现场测量;撞击声绝缘;内部;扬声器音响;材料测试;数学运算;测量;测量仪器;测量技术;噪声控制(声学);混响时间;公路运输;吸音表面;声绝缘;声音强度;声极差;隔音的;结构体系;试验炉;试验
【英文主题词】:Acousticengineering;Acousticmeasurement;Acousticpropertiesandphenomena;Acoustics;Airbornesoundinsulation;Buildingacoustics;Buildings;Ceilings;Claddingpanels;Construction;Definitions;Exteriorwalls;External;Facades;Fieldmeasurement;Impactsoundinsulation;Internal;Loudspeakersound;Materialstesting;Mathematicalcalculations;Measurement;Measuringinstruments;Measuringtechniques;Noisecontrol(acoustic);Reverberationtime;Roadtransport;Soundabsorbentsurface;Soundinsulation;Soundintensity;Soundleveldifference;Soundproofing;Structuralsystems;Testfurnaces;Testing
【摘要】:ThispartofISO140specifiestwoseriesofmethods(elementmethodsandglobalmethods)formeasurementoftheairbornesoundinsulationoffacadeelementsandwholefacades,respectively.Theelementmethodsaimtoestimatethesoundreductionindexofafacadeelement,forexampleawindow.Themostaccurateelementmethodusesaloudspeakerasanartificialsoundsource.Other,lessaccurate,elementmethodsuseavailabletrafficnoise.Theglobalmethods,ontheotherhand,aimtoestimatetheoutdoor/indoorsoundleveldifferenceunderactualtrafficconditions.Themostaccurateglobalmethodsusetheactualtrafficassoundsource.Inaddition,aloudspeakermaybeusedasanartificialsoundsource.Anoverviewofthemethodsisgivenintable1.Theelementloudspeakermethodyieldsanapparentsoundreductionindexwhich,undercertaincircumstances[e.g.takingaccountofmeasurementprecision(see7.1)],canbecomparedwiththesoundreductionindexmeasuredinlaboratoriesinaccordancewithISO140-3orISO140-10.Thismethodisthepreferredmethodwhentheaimofthemeasurementistoevaluatetheperformanceofaspecifiedfagadeelementinrelationtoitsperformanceinthelaboratory.Theelementroadtrafficmethodwillservethesamepurposesastheelementloudspeakermethod.Itisparticularlyusefulwhen,fordifferentpracticalreasons,theelementloudspeakermethodcannotbeused.Thesetwomethodswilloftenyieldslightlydifferentresults.Theroadtrafficmethodtendstoresultinlowervaluesofthesoundreductionindexthantheloudspeakermethod.InannexDthisroadtrafficmethodissupplementedbythecorrespondingaircraftandrailwaytrafficmethods.Theglobalroadtrafficmethodyieldstherealreductionofafacadeinagivenplacerelativetoaposition2minfrontofthefacade.Thismethodisthepreferredmethodwhentheaimofthemeasurementistoevaluatetheperformanceofawholefacade,includingallflankingpaths,inaspecifiedpositionrelativetonearbyroads.Theresultcannotbecomparedwiththatoflaboratorymeasurements.Thegloballoudspeakermethodyieldsthesoundreductionofafacaderelativetoaposition2minfrontofthefacade.Thismethodisparticularlyusefulwhen,fordifferentpracticalreasons,therealnoisesourcecannotbeused.Theresultcannotbecomparedwiththatoflaboratorymeasurements.
【中国标准分类号】:P31
【国际标准分类号】:91_120_20
【页数】:24P;A4
【正文语种】:英语

标准名称：	半导体集成电路新产品定型鉴定的程序规则
英文名称：	Procedures and rules for approval of new procucts for semiconductor integrated circuits
中标分类：	化工 >> 化工综合 >> 技术管理
替代情况：	原标准号GB 4719-84
发布日期：	1996-11-20
实施日期：	1997-01-01
首发日期：	1900-01-01
作废日期：	2010-01-20
出版日期：	1900-01-01
页数：	11页

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