ANSI/INCITS/ISO/IEC 10589AMD 1-1996 与非连接模式网络服务协议共用的中间系统间内部路由选择例程信息交换协议.修改件1
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【英文标准名称】:Intermediatesystemtointermediatesystemintra-domain-routeingroutineinformationexchangeprotocolforuseinconjunctionwiththeprotocolforprovidingtheconnectionless-modeNetworkService(ISO8473)Amendment1
【原文标准名称】:与非连接模式网络服务协议共用的中间系统间内部路由选择例程信息交换协议.修改件1
【标准号】:ANSI/INCITS/ISO/IEC10589AMD1-1996
【标准状态】:作废
【国别】:美国
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:信息技术;数据处理;电信
【英文主题词】:Dataprocessing;Datatransfer;Informationinterchange;Informationtechnology;Networkinterconnection;Networklayers;Networkservices;OSI;Telecommunications;Transmissionprotocol
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:35_100_30
【页数】:
【正文语种】:英语
【英文标准名称】:SHIPBUILDING.INLANDNAVIGATION.WALL-MOUNTEDCABINVENTILATORS.
【原文标准名称】:造船工业.内河航行.壁内局部通风机
【标准号】:NFJ94-315-1970
【标准状态】:作废
【国别】:法国
【发布日期】:1970-07
【实施或试行日期】:1970-07-03
【发布单位】:法国标准化协会(AFNOR)
【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】:U54
【国际标准分类号】:
【页数】:2P;A4
【正文语种】:其他
【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Precisionmethodsforreverberationrooms
【原文标准名称】:声学声压法测定噪声源声功率级混响室精密法
【标准号】:ISO3741-1999
【标准状态】:作废
【国别】:国际
【发布日期】:1999-08
【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】:混响;测定;声学试验;声级;声学;试验;噪声(环境的);声源;声强;响度
【英文主题词】:Absorption;Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoiseemitted;Calibration;Clay;Concentration;Definitions;Determination;Earprotectors;Environment;Filters;Frequencies;Handling;Hearingabilitytests;Humidity;Indications;Information;Loudnesslevels;Loudspeakers;Machines;Mathematicalcalculations;Measurement;Measuringenvironment;Measuringincertainity;Measuringinstruments;Measuringrooms;Measuringtechniques;Microphones;Noise;Noise(environmental);Noisemeasurements;Noisesources;Observation;Operatingconditions;Position;Powerlevels;Precision;Reverberation;Reverberationroommethod;Reverberationrooms;Rooms;Safetyofmachinery;Sound;Soundabsorption;Soundintensity;Soundlevel;Soundlevels;Soundpower;Soundpressure;Soundsources;Specification(approval);Standarddeviation;Surfaces;Temperature;Testing;Tests;Volume(sound)
【摘要】:1ThisInternationalStandardspecifiesadirectmethodandacomparisonmethodfordeterminingthesoundpowerlevelthatwouldbeproducedbyasourceoperatinginanenvironmentatstandardmeteorologicalconditionscorrespondingtoacharacteristicimpedanceofρc=400N·s/m(whereρisthedensityofairandcisthespeedofsound).Itspecifiestestroomrequirements,sourcelocationandgeneralrulesforoperatingconditions,instrumentationandtechniquesforobtaininganestimateofmean-squaresoundpressurelevelsfromwhichthesoundpowerlevelsofthesourceinoctaveorone-third-octavebandsarecalculatedwithagrade1accuracy.Thequantitiestobemeasuredaretime-averagedsoundpressurelevelsinfrequencybands.Thequantitiestobedeterminedaresoundpowerlevels,A-weightedandinfrequencybands.Otherquantities,whichareoptional,aresoundpowerlevelswithotherfrequencyweightingscalculatedfromthemeasurementsinfrequencybands.Thisstandarddoesnotprovidethemeanstodeterminedirectivityandtemporalvariationofsoundfromasource.Ingeneral,thefrequencyrangeofinterestincludestheone-third-octavebandswithmidbandfrequenciesfrom100Hzto10000Hz.GuidelinesfortheapplicationofthespecifiedmethodsinanextendedfrequencyrangeinrespecttolowerfrequenciesaregiveninannexC.ThisInternationalStandardisnotapplicabletofrequencyrangesabovethe10000Hzone-third-octaveband.ForhigherfrequenciestheuseofmethodsgiveninISO9295isrecommended.2ThemethodspecifiedinthisInternationalStandardissuitableforsteadynoisewithbroad-band,narrow-bandanddiscrete-frequencycomponentsasdescribedinISO12001.Thenoisemaybeemittedfromadevice,machine,componentorsub-assembly.ThisInternationalStandardisapplicabletonoisesourceswithvolumeswhicharepreferablynotgreaterthan2%ofthevolumeofthereverberationroomusedforthetest.Forsourceswithvolumesgreaterthan2%oftheroomvolume,thestandarddeviationsgivenbyTable2couldbeexceeded.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_01
【页数】:32P;A4
【正文语种】:英语
