IEC 60411-3-1982 电力牵引用电力变换器.第3部分:单相牵引用自换向变换器
时间:2024-05-20 07:18:11 来源: 标准资料网 作者：标准资料网 阅读：9091
【英文标准名称】:Powerconvertorsforelectrictraction.Part3:Self-commutatedconvertorsforsingle-phasetraction
【原文标准名称】:电力牵引用电力变换器.第3部分:单相牵引用自换向变换器
【标准号】:IEC60411-3-1982
【标准状态】:作废
【国别】:国际
【发布日期】:1982
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC22D
【标准类型】:()
【标准水平】:()
【中文主题词】:电力牵引;铁路电力牵引装置;电子工程;铁道车辆;电力变换器;单相(的);牵引车辆;电力电子学
【英文主题词】:electricconvertors;powerelectronics;electrictraction;railwayelectrictractionequipment;railwayvehicles;electronicengineering;tractionvehicles;monophase
【摘要】:
【中国标准分类号】:K46;K63
【国际标准分类号】:2220;1580
【页数】:67P;A4
【正文语种】:英语
【英文标准名称】:Waterquality;enumerationofviablemicroorganisms;colonycountbyinoculationinoronanutrientagarculturemedium
【原文标准名称】:水质.活微生物的计数.通过对营养琼脂培养基进行接种的计群法
【标准号】:ISO6222-1988
【标准状态】:作废
【国别】:国际
【发布日期】:1988-11
【实施或试行日期】:1988-11-01
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC147
【标准类型】:()
【标准水平】:()
【中文主题词】:测定;微生物;微生物分析;试验;水;质量
【英文主题词】:tests;testing;quality;water;microbiologicalanalysis;microorganisms;micro-organisms;determination
【摘要】:
【中国标准分类号】:C51;Z16
【国际标准分类号】:4799
【页数】:2P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforMeasurementofThicknessofSandwichCores
【原文标准名称】:夹层芯材厚度测定的标准试验方法
【标准号】:ASTMC366/C366M-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D30.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:core;corethickness;sandwich
【摘要】:Normally,aclosetoleranceisdesirableforcorethicknesssothatsandwichpanelsmaybemanufacturedwithallthesandwichcomponentsfittingproperlyandwithoutcrushingthecore.Thesetestmethodsaredesignedformeasuringthicknessofcoreasitisproducedandarenotintendedforuseindeterminingdimensionsofcorespecimensforothertests.Thesetestmethodsprovidestandardmethodsofobtainingthecorethicknessofflatsandwichcorematerials,andprovideabasisfordeterminingaveragethicknessdimensions.Thethicknesspropertiesderivedmaybeusedindesignproperties,materialspecifications,researchanddevelopmentapplications,andqualityassurance.Factorsthatinfluencecorethicknessmeasurementandshallthereforebereportedincludethefollowing:corematerialthrough-thicknessrigidity,surfaceroughness,specimengeometry(includingwarpage),specimenpreparation,methodsofdimensionalmeasurement,specimenconditioning,andmoisturecontentduringdimensionalmeasurements.1.1Thesetestmethodscoverplantmanufacturingproceduresformeasuringthethicknessofflatsandwichcores.Permissiblecorematerialformsincludethosewithcontinuousbondingsurfaces(suchasbalsawoodandfoams)aswellasthosewithdiscontinuousbondingsurfaces(suchashoneycomb).Thetwotestmethodscoveredincludethefollowing:1.1.1TestMethodARoller-TypeThicknessTester.1.1.2TestMethodBDisk-TypeThicknessTester.Note1Thesetestmethodsaredesignedformeasuringthicknessofcoreasitisproducedandarenotintendedforuseindeterminingdimensionsofcorespecimensforothertests.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetexttheinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:83_120
【页数】:4P.;A4
【正文语种】: