【英文标准名称】:Smalltransformers;characteristicdata,EIandSEcores(EIwithoutwasteofmaterial)
【原文标准名称】:小型变压器；SI形和SE形铁芯.特性数据
【标准号】:DIN41300T.2-1979
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
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【英文标准名称】:Acoustics-Measurementofsoundinsulationinbuildingsandofbuildingelements-Part4:Fieldmeasurementsofairbornesoundinsulationbetweenrooms
【原文标准名称】:声学建筑物和建筑构件的隔声测量第4部分:房间之间空气声隔声的现场测量
【标准号】:ISO140-4-1998
【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】:声学测量;声学;测量;建筑物;噪声控制;定义;内墙;隔音;音域测量;气载声音隔绝;声音试验
【英文主题词】:Acousticengineering;Acousticmeasurement;Acousticpropertiesandphenomena;Acoustictestingrooms;Acoustics;Airbornesoundinsulation;Buildingacoustics;Buildings;Ceilings;Closedtestrooms;Construction;Definitions;Doors;Fieldmeasurement;Frequencyranges;Impactsoundinsulation;Interiorwalls;Materialstesting;Mathematicalcalculations;Measurement;Measuringfrequencies;Measuringinstruments;Measuringtechniques;Noisecontrol(acoustic);Reverberationtime;Rooms;Soundabsorbentsurface;Soundfields;Soundinsulation;Soundintensity;Soundpressurelevel;Soundproofing;Structuralsystems;Testfurnaces;Testing;Walls
【摘要】:ThispartofISO140specifiesfieldmethodsformeasuringtheairbornesoundinsulationpropertiesofinteriorwalls,floorsanddoorsbetweentworoomsunderdiffusesoundfieldconditionsinbothrooms,andfordeterminingtheprotectionaffordedtotheoccupantsofthebuilding.Themethodsgivevaluesforairbornesoundinsulationwhicharefrequencydependent.Theycanbeconvertedintoasinglenumber,characterizingtheacousticperformance,byapplicationofISO717-1.Theresultsobtainedcanbeusedtocomparesoundinsulationbetweenroomsandtocompareactualsoundinsulationwithspecifiedrequirements.NOTE1LaboratorymeasurementsofairbornesoundinsulationofbuildingelementsaredealtwithinISO140-3.NOTE2FieldmeasurementsofairbornesoundinsulationoffacadeelementsandfacadesaredealtwithinISO140-5.
【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