NF E44-051-2009 液泵.安全性要求.静液压试验过程
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来源:标准资料网
【英文标准名称】:Liquidpumps-Safetyrequirements-Procedureforhydrostatictesting.
【原文标准名称】:液泵.安全性要求.静液压试验过程
【标准号】:NFE44-051-2009
【标准状态】:现行
【国别】:法国
【发布日期】:2009-07-01
【实施或试行日期】:2009-07-24
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:检验设备;循环泵;元部件;定义(术语);静水压设备;液体静压力;流体静力学(水);液泵;机械工程;压力试验;泵;安全性;安全工程;机器安全性;试验压力;测试;测试装置;试验流体;时间
【英文主题词】:Checkingequipment;Circulationpumps;Components;Definitions;Hydrostaticequipment;Hydrostaticpressure;Hydrostatics;Liquidpumps;Mechanicalengineering;Pressuretests;Pumps;Safety;Safetyengineering;Safetyofmachinery;Testpressure;Testing;Testingdevices;Testingfluids;Time
【摘要】:
【中国标准分类号】:J71
【国际标准分类号】:23_080
【页数】:18P;A4
【正文语种】:其他
【英文标准名称】:Radio-frequencyconnectors.Sectionalspecification.RFcoaxialconnectorswithinnerdiameterofouterconductor7mm(0,276in)withscrewcoupling.Characteristicimpedance50ohms(75ohms)(typeN)
【原文标准名称】:射频连接器.分规范.外导体内径为7mm(0.276in)的螺纹连接射频同轴连接器.特征阻抗50Ω(75Ω)(N型)
【标准号】:BSEN61169-16-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-05-31
【实施或试行日期】:2007-05-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:认可;同轴;同轴连接器;元部件;连接尺寸;尺寸选定;尺寸规格;电插头;电气工程;电子的;电子设备和元件;量规;高频;阻抗;检验;接口;作标记;特性;质量;质量评定;射频连接器;射频插头;额定值;螺栓联结器;螺纹闭塞物;分规范;规范;规范(验收);测试
【英文主题词】:Approval;Coaxial;Coaxialconnectors;Components;Connectingdimensions;Dimensioning;Dimensions;Electricplugs;Electricalengineering;Electronic;Electronicequipmentandcomponents;Gauges;Highfrequencies;Impedance;Inspection;Interfaces;Marking;Properties;Quality;Qualityassessment;Radiofrequencyconnectors;Radio-frequencyplugs;Ratings;Screwcouplings;Screwedclosures;Sectionalspecification;Specification;Specification(approval);Testing
【摘要】:ThispartofIEC61169,whichisaSectionalSpecification(SS),providesinformationandrulesforthepreparationofDetailSpecifications(DS)forpinandsocketR.F.coaxialconnectors,withscrewcouplingmechanism,forlowtomediumpowerapplications.Theconnectoriscommonlyknownasthe"typeN".Threeversionsofthe50ΩcharacteristicimpedancetypeNconnectorareincluded,eachversionbeingmateablewitheachoftheothers.Thegeneralpurposeconnector(grade2)derivedfromthespecificationsMIL-C17BandMILC-39012maypreferablybeusedwithR.F.cable60096IEC50-7uptoabout12GHzmaximumfrequency.Thehighperformanceconnector(grade1)isparticularlysuitableformicrowaveapplicationswhenlowerreflectionfactorsthanareofferedbythegeneralpurposeconnectorarerequired.Theconnectorsmayalsobesuitableformicrowavecomponents.Thetolerancesoftheinterfacedimensionsliebetweenthoseforgrade0andgrade2,andarechosentogivetheperformancerequired.Somegrade1connectorsconformingtothisspecificationmaybeusedupto18GHzmaximumfrequency.Thestandardtestconnector(grade0)hasacloselycontrolledinterfacetoprovideareferenceforthemeasurementofconnectors,cableassemblies,componentsandequipmentwiththeabovetwointerfaces.Itmayalsobeusedasamicrowaveconnectorinsituationswhenthemostpreciseinterfaceforuseupto18GHzmaximumfrequencyisrequired.A75ΩcharacteristicimpedanceconnectorisgiveninAnnexAeventhoughtheuseof75ΩtypeNconnectorsisstronglydeprecated.Accidentalcross-couplingof75Ωwith50Ωconnectorscandestructivelydamagethe75Ωversion,butinviewoftheextensiveuseofanumberofmarginallydifferent75Ωversions,theinterfacenowgivenprovidescommondesignguidance.75Ωconnectorsshouldbeclearlyidentified.ThisspecificationindicatestherecommendedperformancecharacteristicstobeconsideredwhenwritingaDSandcoverstestschedulesandinspectionrequirements.
【中国标准分类号】:L23
【国际标准分类号】:33_120_30
【页数】:34P;A4
【正文语种】:英语
【英文标准名称】:Hardmetals-Metallographicdeterminationofmicrostructure-Part1:photomicrographsanddescription.
【原文标准名称】:硬质合金.显微组织的金相测定.第1部分:显微照片和描述.
【标准号】:NFA95-186-1-2010
【标准状态】:现行
【国别】:法国
【发布日期】:2010-10-01
【实施或试行日期】:2010-10-22
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Crystalmicrostructure;Definitions;Designations;Determination;Etching;Hardmetals;Metallography;Metals;Micrographs;Microscopicanalysis;Microstructure;Powdermetallurgy;Specimenpreparation;Symbols;Terms;Testspecimens;Testing;Texture
【摘要】:
【中国标准分类号】:H16
【国际标准分类号】:77_040_99;77_160
【页数】:29P;A4
【正文语种】:其他
