【英文标准名称】:MeasurementofLightVehicleStationaryExhaustSystemSoundLevelEngineSpeedSweepMethod
【原文标准名称】:用发动机加速扫描法测量轻型车辆固定排放系统声级
【标准号】:ANSI/SAEJ1492-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998-05
【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】:声学;汽车;机动车工程;客车;排气系统;测量;噪声;噪声测量;声音
【英文主题词】:Acoustics;Automobiles;Automotiveengineering;Buses;Exhaustsystems;Measurement;Noise;Noisemeasurements;Sound
【摘要】:ThisSAERecommendedPracticeestablishesthetestprocedure,environment,andinstrumentationtobeusedformeasuringtheexteriorexhaustsoundlevelforpassengercars,multipurposevehicles,andlighttrucksunderstationaryconditionsprovidingacontinuousmeasureofexhaustsystemsoundleveloverarangeofenginespeeds.Thissoundlevelmeasurementprocedurehasbeendevelopedforuseinengineeringevaluationofthesoundlevelperformanceofpassengercarandlighttruckexhaustsystems.Itprovidesthemeansfordetectingexhaustsystemresonanceswiththepotentialtoaffectbothexteriorandinteriorsoundquality.ThisdocumentincorporatescertainprovisionsofISO5130-1982-02-15,formeasuringthesoundlevelofexhaustsystems.
【中国标准分类号】:Z32;T10
【国际标准分类号】:17_140_30;43_100
【页数】:
【正文语种】:英语


【英文标准名称】:SpecificationforStyrene-ButadieneSheeting(08.03)
【原文标准名称】:苯乙烯-丁二烯薄板规范
【标准号】:ANSI/ASTMD4225-1997
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【实施或试行日期】:1997-12-16
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:苯乙烯;塑料
【英文主题词】:styrene;plastics
【摘要】:Thisspecificationcoversstyrene-butadienesheetinginthicknessesof0.25mm(0.01in.)andgreater.Sheetingconformingtothisspecificationisintendedforuseininstrumenthousingsandapplicationsrequiringresistancetoimpact.Methodsoffabricationmayrequirethatthesheetbedrawnorbent.Thisspecificationcoversnaturalandcoloredsheeting.Thisspecificationcoversqualityrequirementsthatincludedegreeoforientation,amountofwarpageortwist,dimensions,tolerances,andworkmanship.ThevaluesstatedinSIunitsaretoberegardedasthestandard.TheSIunitsgiveninparenthesesareforinformationonly.1.5Thefollowingprecautionarystatementpertainstothetestmethodportiononly,Section12,ofthisspecification:Thisstandarddoesnotpurporttoaddressthesafetyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G33
【国际标准分类号】:83_140_10
【页数】:
【正文语种】:英语