基本信息
| 标准名称： | CTK403型有可靠性指标的瓷介固定电容器详细规范 |
| 英文名称： | Detail specification capacitors fixed ceramic dielectric established reliability Type CTK403 |
| 中标分类： |
电子元器件与信息技术 >>
电子元件 >>
电容器 |
| 替代情况： | 被SJ 50924/3-2002代替 |
| 发布日期： | 1992-11-19 |
| 实施日期： | 1993-05-01 |
| 首发日期： | |
| 作废日期： | |
| 起草单位： | 中国电子技术标准化研究所 |
| 出版日期： | |
| 页数： | 4页 |
适用范围
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前言
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引用标准
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所属分类： 电子元器件与信息技术 电子元件 电容器
【英文标准名称】:StandardGuideforPreparingaMeasurementPlanforConductingOutdoorSoundMeasurements
【原文标准名称】:进行室外噪声测量的测量方案的拟定用标准指南
【标准号】:ASTME1779-1996a(2004)
【标准状态】:现行
【国别】:
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E33.09
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:声音;时间;风;大气影响;试验;噪声级测量;带;声级测量的统计;平均声级;气象条件;百分位数声级测量;低;声学环境;伴随;公众噪声;进行室外噪声测量;拟定一个测量方案;方向性;设备噪音;分倍频程;脉冲声音测量;倍频程;室外噪声级测量;结构振动;无伴音;地面;干扰;导则;声传输
【英文主题词】:acousticalenvironment;attended/unattendedmeasurement;calibrationmicrophone;durationmeasurement;impulsivesoundleveldata;low-frequencysoundleveldata;measurementprecautions;measurementschedule;measurementprocedures;measurementlo
【摘要】:1.1Thisguidecoversthepreparationofaformalplanformeasurementofoutdoorsoundlevels.Adocumented,detailedplanishighlydesirableandusefulformajorenvironmentalnoisestudiesrequiringmeasurementsatseverallocationsoveralongperiod.Thisguideisintendedprimarilyforuseinsuchcases.Manysimplemeasurementscanbemadewithoutextensivepriorplanningordocumentation.Itisrecommendedthatpersonsororganizationsroutinelyperformingsuchmeasurementsdraftanduseabriefgenericplanbasedon,butnotreferencing,thisguide.Note1Theextentofplanningandplandocumentationshouldbeconsistentwiththebudgetandneedsoftheproject.Inalargemeasurementprogramitispossiblethatuseofaformalmeasurementplancouldresultincostsavingsgreaterthanthecostofpreparingtheplan.Aformaldocumentedplancanbepreparedforeventhesimplestmeasurement.However,onasmallproject,thecostofpreparationofaformalplanmaynotbecosteffective.Insuchcases,plandocumentationcouldbelimitedtoinclusioninthefinalreport.1.1.1Thisguideaddressesthefollowingaspectsofoutdoorsoundlevelmeasurements:1.1.2TestMethodE1503forConductingOutdoorSoundMeasurementsUsingaDigitalStatisticalAnalysisSystemaddresseslistedaspectsofoutdoorsoundlevelmeasurementsforsituationsthatarenormallyencountered.Manyotherformalandinformalpracticesalsoaddressmostoftheseissues.However,thereissometimesaneedtodepartfromthenormalmethodsinordertoaccommodateaspecialsituationoraregulatoryrequirement.Thisguideprovidesoptionsthataretechnicallycorrectforspecificsituations,andprovidestheinformationneededforselectingappropriateoptions.1.1.3Thisguidemaybeusedwhenplanningaprogramforobtainingeitherasinglemeasurementsetofsoundleveldataormultiplesetsofdata,aswellasrelatedsupportingdata.1.2Measurementsthatmaybeplannedusingthisguideinclude,butarenotlimited,tothefollowing:1.2.1Characterizationoftheacousticalenvironmentofasite.1.2.2Characterizationofthesoundemissionsofaspecificsoundsourcethatexhibitsatemporalvariationinsoundoutput.1.2.3Measurementoflow-frequencysound(infra-sound)isincludedbecauseitissometimesimplicatedindrivingstructuralvibrationthattranslatestoaudibleinteriorsound.1.2.4Measurementofimpulsivesoundandsoundwithsignificanttonalcontent.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z32
【国际标准分类号】:
【页数】:17P.;A4
【正文语种】: