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DIN 49644-15-1991 IEC灯头用量规.G6.35.GX6.35.GY6.35和GZ6.35灯头用"过端"量规

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【英文标准名称】:IECcapgauges;"go"gaugesforG6,35,GX6,35andGY6,35lampcaps
【原文标准名称】:IEC灯头用量规.G6.35.GX6.35.GY6.35和GZ6.35灯头用"过端"量规
【标准号】:DIN49644-15-1991
【标准状态】:作废
【国别】:德国
【发布日期】:1991-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:照明系统;照明工程;公差;试验;底座;灯头;过端量规;电气工程;灯头量规;IEC灯头量规;尺寸;IEC量规;量规;检验
【英文主题词】:electricalengineering;lightingsystems;inspection;iecgauches;gauges;capgauges;illuminationengineering;testing;tolerances(measurement);dimensions;lampcaps;ieccapgauges;go-gauges;plinths
【摘要】:
【中国标准分类号】:J42;K95
【国际标准分类号】:29_140_10
【页数】:2P;A4
【正文语种】:德语


【英文标准名称】:Claybricks;lightweightverticallyperforatedbricks
【原文标准名称】:砌墙砖.轻空心砖
【标准号】:DIN105T.2-1989
【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】:
【正文语种】:


【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundintensity-Precisionmethodformeasurementbyscanning
【原文标准名称】:声学.用声强测定噪声源的声功率级.扫描测量法
【标准号】:BSENISO9614-3-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2010-04-30
【实施或试行日期】:2010-04-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Calibration;Continuous;Definitions;Determination;Earprotectors;Externalnoise;Intensity;Machinenoise;Machines;Measurement;Measuringenvironment;Measuringincertainity;Measuringinstruments;Measuringsurfaces;Measuringtechniques;Methods;Noise;Noiseemissions;Noise(environmental);Noisemeasurements;Noisesources;Precision;Properties;Scanners;Scanning;Soundfields;Soundintensity;Soundlevel;Soundpower;Soundpressure;Soundsources;Specification(approval);Temperature;Testing;Winds
【摘要】:1.1ThispartofISO9614specifiesamethodformeasuringthecomponentofsoundintensitynormaltoameasurementsurfacewhichischosensoastoenclosethesoundsource(s)ofwhichthesoundpowerlevelistobedetermined.Surfaceintegrationoftheintensitycomponentnormaltothemeasurementsurfaceisapproximatedbysubdividingthemeasurementsurfaceintocontiguouspartialsurfaces,andscanningtheintensityprobeovereachpartialsurfacealongacontinuouspathwhichcoverstheextentofthepartialsurface.Themeasurementinstrumentdeterminestheaveragednormalintensitycomponentandaveragedsquaredsoundpressureoverthedurationofeachscan.Thescanningoperationcanbeperformedeithermanuallyorbymeansofamechanicalsystem.Theoctavebandorband-limitedweightedsoundpowerleveliscalculatedfromthemeasuredone-third-octavebandvalues.Themethodisapplicabletoanysourceforwhichaphysicallystationarymeasurementsurfacecanbedefined,andonwhichthesoundgeneratedbythesourceundertestandbyothersignificantextraneoussourcesarestationaryintime.Thesourceisdefinedbythechoiceofmeasurementsurface.ThemethodisapplicableinspecifictestenvironmentsfulfillingallrelevantrequirementsofthispartofISO9614.ThispartofISO9614specifiescertainancillaryprocedures,describedinannexC,tobefollowedinconjunctionwiththesoundpowerdetermination.Theresultsareusedtoindicatethequalityofthedetermination,andhencethegradeofaccuracy.IfthequalityofthedeterminationdoesnotmeettherequirementsofthispartofISO9614,thetestprocedureshallbemodifiedinthemannerindicated.ThispartofISO9614isnotapplicabletoanyfrequencybandinwhichthesoundpowerofthesourceisfoundtobenegativeonmeasurement.1.2ThispartofISO9614isapplicabletosourcessituatedinanyenvironmentwhichisneithersovariableovertimeastoreducetheaccuracyofthemeasurementofsoundintensitytoanunacceptabledegree,norsubjectstheintensitymeasurementprobetogasflowsofunacceptablespeedorunsteadiness(see5.2.2,5.3and5.4).InsomecasesitwillbefoundthatthetestconditionsaretooadversetoallowtherequirementsofthispartofISO9614tobemet.Forexample,extraneousnoiselevelscanexceedthedynamiccapabilityofthemeasuringinstrumentorcanvarytoanexcessivedegreeduringthetest.InsuchcasesthemethodgiveninthispartofISO9614isnotsuitableforthedeterminationofthesoundpowerlevelofthesource.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_01
【页数】:48P.;A4
【正文语种】:英语