DIN EN 60196-2010 IEC标准频率(IEC60196:2009);德文版本EN60196:2009
作者:标准资料网 时间:2024-04-28 14:33:50 浏览:9877
来源:标准资料网
【英文标准名称】:IECstandardfrequencies(IEC60196:2009);GermanversionEN60196:2009
【原文标准名称】:IEC标准频率(IEC60196:2009);德文版本EN60196:2009
【标准号】:DINEN60196-2010
【标准状态】:现行
【国别】:德国
【发布日期】:2010-03
【实施或试行日期】:2010-03-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Aircraft;Alternatingcurrent;Definitions;Electrictools;Electricalengineering;Electrically-operateddevices;Energysupplysystems(buildings);Frequencies;Industries;Railwayapplications;Railways;Ratedfrequencies;Shipbuilding;Standardfrequencies;Three-phasecurrent
【摘要】:Thestandardfrequenciesarethefrequenciestobeadoptedforsingle-phaseandthree-phasea.c.systems,forinstallationsinships,fora.c.tractionsystems,fortoolsandforaircraft.Thisstandardizationislimitedtofrequenciesupto10000Hz.
【中国标准分类号】:K04
【国际标准分类号】:29_020
【页数】:6P.;A4
【正文语种】:德语
基本信息
| 标准名称： | 110甲基乙烯基硅橡胶 |
| 中标分类： |
化工 >>
合成材料 >>
合成树脂、塑料 |
| 替代情况： | 改号为HG/T 3312-1983 |
| 发布日期： | |
| 实施日期： | 1994-07-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 4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： 化工 合成材料 合成树脂 塑料
【英文标准名称】:StandardGuideforPlanarFlawHeightSizingbyUltrasonics
【原文标准名称】:用超声波法测定平面裂纹高度尺寸的标准指南
【标准号】:ASTME2192-2008
【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】:E07.06
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:evaluation;examination;flaw-heightsizing;flawsizing;nondestructivetesting;ultrasonic;Evaluationdevices/systems;Nondestructiveevaluation(NDE);Planarflaw-heightsizing;Timeofflight(TOF)sizingtechnique;Ultrasonicdiffraction;Ultra
【摘要】:Thepracticesreferencedinthisdocumentareapplicabletomeasuringtheheightofplanarflawsopentothesurfacethatoriginateonthefar-surfaceornear-surfaceofthecomponent.Thesepracticesareapplicabletothrough-wallsizingofmechanicalorthermalfatigueflaws,stresscorrosionflaws,oranyothersurface-connectedplanarflaws.Thetechniquesoutlineddescribeprovenultrasonicflawsizingpracticesandtheirassociatedlimitations,usingrefractedlongitudinalwaveandshearwavetechniquesasappliedtoferriticorausteniticcomponents.Othermaterialsmaybeexaminedusingthisguidewithappropriatestandardizationreferenceblocks.Thepracticesdescribedareapplicabletobothmanualandautomatedexaminations.ThetechniquesrecommendedinthisstandardguideuseTimeofFlight(TOF)orDeltaTimeofFlight(x0394;TOF)methodstoaccuratelymeasuretheflawsize.Thisguidedoesnotincludetheuseofsignalamplitudemethodstodetermineflawsize.Generally,withthesesizingmethodsthevolumeofmaterial(orcomponentthickness)tobesizedisdividedintothirds;theinner1/3,themiddle1/3andtheouter1/3.Usingthefar-surfaceCreepingWaveMethodtheusercanqualitativelysegregatetheflawintotheapproximate1/3zone.Thesizingmethodsareusedin1/3zonestoquantitativelysizethecrack,thatis,Tip-diffractionfortheinner1/3,Bi-Modalmethodforthemiddle1/3,andtheFocusedLongitudinalWaveorFocusedShearWaveMethodsfortheouter1/3.These1/3zonesaregenerallyapplicabletomostsizingapplications,however,thevarioussizingmethodshaveapplicationsoutsidethese1/3zonesprovidedaproperreferenceblockandtechniqueisdemonstrated.1.1Thisguideprovidestutorialinformationandadescriptionoftheprinciplesandultrasonicexaminationtechniquesformeasuringtheheightofplanarflawswhichareopentothesurface.Thepracticesandtechnologydescribedinthisstandardguideareintendedasareferencetobeusedwhenselectingaspecificultrasonicflawsizingtechniqueaswellasestablishingameansforinstrumentstandardization.1.2Thisstandardguidedoesnotprovideorsuggestaccuracyortolerancesofthetechniquesdescribed.Parameterssuchassearchunits,examinationsurfaceconditions,materialcomposition,etc.canallhaveabearingontheaccuracyofresults.Itisrecommendedthatusersassessaccuracyandtolerancesapplicableforeachapplication.1.3Thisdocumentdoesnotpurporttoprovideinstructiontomeasureflawlength.1.4Thisstandardguidedoesnotprovide,suggest,orspecifyacceptancestandards.Afterflaw-sizingevaluationhasbeenmade,theresultsshouldbeappliedtoanappropriatecodeorstandardthatspecifiesacceptancecriteria.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:19_100
【页数】:22P.;A4
【正文语种】:英语
