ISO 13556-1998 道路车辆排气系统泄漏位置的确定和装置的技术规范

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【英文标准名称】:Roadvehicles-Localizationofexhaustsystemleaksandequipmentspecifications
【原文标准名称】:道路车辆排气系统泄漏位置的确定和装置的技术规范
【标准号】:ISO13556-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-12
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC22
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;定义;试验;道路车辆;排气;摩托车;防泄漏;漏泄试验;排气系统
【英文主题词】:Definition;Definitions;Exhaustgases;Exhaustsystems;Leakdetection;Leaktests;Motorvehicles;Roadvehicles;Testing
【摘要】:ThisInternationalStandardspecifiesamethodtoverifythegastightnessoftheexhaustsystemofroadvehiclesequippedwithaninternationalcombustionengine.Itisprimarilyintendedtoestablishamethodtodetectandlocalizeexhaustsystemleaksinordertoimprovethequalityofexhaustgasmeasurements.ItisalsointendedtocompletetherequirementsofISO3929andapplicableregulations.TheusersofthisInternationalStandardarewarnedthat:a)certainengineswithhighvalveoverlapscamshaftevents,especiallyengineswitheightormorecylinders,maynothaveallexhaustvalvesclosedwhentheengineisstopped.Thisissuemaycausetheleaktesttofail.Thissituationcouldbecorrectedbythedisassemblyoftheexhaustvalveactuationmechanismusingthevehicleorenginemanufacturer'srecommendedprocedure;b)nationalregulationsonthesubjectofpressurizingshouldbecheckedbeforetesting;c)detectedleakagecanbequantifiedundercertaintestconditions.ThisInternationalStandardalsospecifiesthemeasurementapparatusandnecessarydevices.Thismethodisparticularlyrecommendedfor:a)automotiveworkshops,b)laboratoriesbeforeanyemissiontests,c)testinganddiagnosticstations.Themeasurementapparatuscanbeusedattheendoflineofautomotiveandexhaustpartsmanufacturers.note:1)ISO3929:1995,Roadvehicles—Measurementmethodsforexhaustgasemissionsproducedduringinspectionormaintenance.
【中国标准分类号】:T04
【国际标准分类号】:43_060_20
【页数】:9P;A4
【正文语种】:英语