EN 50500-2008 铁路环境中关于人体辐射的电子和电器装置产生的磁场等级测量程序
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【英文标准名称】:Measurementproceduresofmagneticfieldlevelsgeneratedbyelectronicandelectricalapparatusintherailwayenvironmentwithrespecttohumanexposure;GermanversionEN50500:2008
【原文标准名称】:铁路环境中关于人体辐射的电子和电器装置产生的磁场等级测量程序
【标准号】:EN50500-2008
【标准状态】:现行
【国别】:
【发布日期】:2009-03
【实施或试行日期】:2009-03-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:控制图;定义;影响;电气工程;电磁兼容性;EMC;发射;排放测量;辐射排放;曝光;场强(电);人体;磁场发生器;磁场测量;磁场;测量;测量技术;计算方法;职业安全;辐射暴露;辐射测量;铁路设施;铁路用地;铁路人员;铁路;模拟;固定的;试验报告;牵引电网;交通车辆
【英文主题词】:Controlcharts;Definitions;Effect;Electricalengineering;Electromagneticcompatibility;EMC;Emission;Emissionmeasurement;Emissionofradiation;Exposure;Fieldstrength(electric);Humanbody;Magneticfieldgenerators;Magneticfieldmeasurement;Magneticfields;Measurement;Measuringtechniques;Methodsofcalculation;Occupationalsafety;Radiationexposure;Radiationmeasurement;Railwayapplications;Railwayterritory;Railwayworkers;Railways;Simulation;Stationary;Testreport;Tractionnetwork;Trafficvehicles
【摘要】:
【中国标准分类号】:A58
【国际标准分类号】:17_240
【页数】:20P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforWaterMassperUnitVolumeofSoilandRockIn-PlacebytheNeutronDepthProbeMethod
【原文标准名称】:用中子深探针法对地表土壤和岩石中单位体积含水量的标准试验方法
【标准号】:ASTMD5220-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:depthprobe;in-placewatercontent;insituwatercontent;neutronprobe;nuclearmethods;watermassperunitvolume;Calibration--soil/rockanalysisinstrumentation;Depthprofiling;Massperunitvolume;Neutronradiation--soil;Nondestructiveevalua
【摘要】:Thistestmethodisusefulasarapid,nondestructivetechniqueforthecalculationofthein-placewatermassperunitvolumeofsoilandrockatdesireddepthsbelowthesurface.Thistestmethodisusefulforinformationalandresearchpurposes.ItshouldonlybeusedforqualitycontrolandacceptancetestingwhencorrelatedtoactualwatermassperunitvolumeusingproceduresandmethodsdescribedinA1.2.3.Thenon-destructivenatureofthistestmethodallowsrepetitivemeasurementstobemadeatasingletestlocationforstatisticalanalysisandtomonitorchangesovertime.ThefundamentalassumptionsinherentinthistestmethodarethatthematerialundertestishomogeneousandhydrogenpresentisintheformofwaterasdefinedbyTestMethodD2216.Note18212;Thequalityoftheresultproducedbythisstandardtestmethodisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection,andthelike.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoversthecalculationofthewatermassperunitvolumeofsoilandrockbythermalizationorslowingoffastneutronswheretheneutronsourceandthethermalneutrondetectorareplacedatthedesireddepthintheboredholelinedbyanaccesstube(seeNote3).1.1.1ForlimitationsseeSection6onInterferences.1.2Thewatermassperunitvolume,expressedasmassperunitvolumeofthematerialundertest,iscalculatedbycomparingthethermalneutroncountratewithpreviouslyestablishedcalibrationdata(seeAnnexA1).1.3Aprecisionstatementhasnotbeendevelopedforthisstandardatthistime.Therefore,thisstandardshouldnotbeusedforacceptanceorrejectionofamaterialforpurchasingpurposesunlesscorrelatedtootheracceptedASTMmethods.1.4ThevaluesexpressedinSIunitsareregardedasthestandard.Theinch-poundunitsgiveninparenthesesmaybeapproximateandareprovidedforinformationonly.1.5AllobservedandcalculatedvaluesshallconformtotheguideforsignificantdigitsandroundingestablishedinPracticeD6026.1.5.1Theproceduresusedtospecifyhowdataarecollected,recorded,andcalculatedinthisstandardareregardedastheindustrystandard.Inaddition,theyarerepresentativeofthesignificantdigitsthatshouldgenerallyberetained.Theproceduresuseddonotconsidermaterialvariation,purposeforobtainingthedata,specialpurposestudies,oranyconsiderationsfortheuserx2019;sobjectives;anditiscommonpracticetoincreaseorreducesignificantdigitsofreporteddatatobecommensuratewiththeseconsiderations.Itisbeyondthescopeofthisstandardtoconsidersignificantdigitsusedinanalysismethodsforengineeringdesign.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsaregiveninSection8.
【中国标准分类号】:P13
【国际标准分类号】:13_080_40
【页数】:7P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 电气化铁道接触网零件 钢套铰管环 |
| 中标分类： |
铁路 >>
牵引供电 >>
接触网零件 |
| 发布日期： | |
| 实施日期： | 2002-08-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 3页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 铁路 牵引供电 接触网零件
