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【英文标准名称】:Acoustics;measurementofnoiseemittedbytwo-wheeledmopedsinmotion;engineeringmethod
【原文标准名称】:声学.运动中的双轮机动脚踏两用车发射噪声的测量.工程法
【标准号】:ISO9645-1990
【标准状态】:现行
【国别】:国际
【发布日期】:1990-04-01
【实施或试行日期】:1990-04-15
【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】:测定;道路车辆;机动脚踏两用车;试验;噪声测量;声学试验;噪声(环境的);声学
【英文主题词】:Acoustictesting;Acoustics;Determination;Mopeds;Noise(environmental);Noisemeasurements;Roadvehicles;Testing;Tests
【摘要】:ThisInternationalStandardspecifiesanengineeringmethodformeasuringthenoiseemittedbytwo-wheeledmopedsinmotion[asdefinedinISO3833].Themethodisdesignedtomeettherequirementofsimplicityasfarasitisconsistentwithreproducibilityofresultsandrealismintheoperatingconditionsofthemoped.Thespecificationsareintendedtoreproducethenoiselevelinurbantrafficflowofirregularcharacter,withfulluseoftheenginepoweravailable.NOTE—Thetestmethodcallsforanacousticalenvironmentwhichcanonlybeobtainedinanextensiveopenspace.Suchconditionscanusuallybeprovidedfor—typeapprovalmeasurementsofmopeds,—measurementsatthemanufacturingstage,and—measurementsatofficialtestingstations.Itshouldbenotedthatspotcheckingontheroadofmopedsinusecanrarelybemadeinanidealacousticalenvironment.IfmeasurementshavetobecarriedoutontheroadinanacousticalenvironmentwhichdoesnotfulfiltherequirementsstatedinthisInternationalStandard,itshouldberecognizedthattheresultsobtainedmaydeviateappreciablyfromtheresultsobtainedusingthespecifiedconditions.AmethodbetterfittedtothespotcheckingonroadofmopedsinusewillbespecifiedinafutureInternationalStandard.note:1)ISO3833:1977,Roadvehicles—Types—Termsanddefinitions.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_30;43_140
【页数】:3P.;A4
【正文语种】:英语