【英文标准名称】:Shipbuilding;Inlandvessels;Deckrail
【原文标准名称】:造船内河船舶甲板栏杆
【标准号】:ISO3674-1976
【标准状态】:现行
【国别】:国际
【发布日期】:1976-05
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC8
【标准类型】:()
【标准水平】:()
【中文主题词】:分类;内河航行;窗间小柱;围栏;造船;女儿墙;内河船舶;护栏;海船;尺寸;链条;分类系统
【英文主题词】:Chains;Classification;Classificationsystems;Dimensions;Guardrails;Inlandnavigation;Inlandships;Parapets;Railings;Shipbuilding;Ships;Stanchions
【摘要】:Specifiesthetypes,designsandbasicdimensionsofshipdeckhandrail.Doesnotapplytospecialdeckrailsdesignedforparticularpurposes.
【中国标准分类号】:U26
【国际标准分类号】:47_020_10
【页数】:6P.;A4
【正文语种】:英语


【英文标准名称】:Superconductivity-Criticalcurrentmeasurement-D.C.criticalcurrentofNb3Sncompositesuperconductors
【原文标准名称】:超导性.临界电流测量.Nb3Sn复合超导体的直流(D.C.)临界电流
【标准号】:BSEN61788-2-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-02-28
【实施或试行日期】:2007-02-28
【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】:青铜;铜;临界电流;临界数据;电流测量;直流电流;电气工程;测量;测量技术;铌;超导性;超导体;测试;锡;钛
【英文主题词】:Bronzes;Compositeconstruction;Copper;Criticalcurrent;Criticalitydata;Currentmeasurement;Definitions;Directcurrent;Electricalengineering;Measurement;Measuringcoils;Measuringtechniques;Niobium;Specification(approval);Superconductivity;Superconductors;Testing;Tin;Titanium
【摘要】:ThispartofIEC61788coversatestmethodforthedeterminationofthed.c.criticalcurrentofNb3Sncompositesuperconductorswhicharefabricatedbyeitherthebronzeprocessortheinternaltindiffusionprocessandhaveacopper/non-copperratiolargerthan0,2.Thismethodisintendedforusewithsuperconductorswhichhavecriticalcurrentsoflessthan1000Aandn-valueslargerthan12understandardtestconditionsandatmagneticfieldsoflessthanorequalto0,7timestheuppercriticalmagneticfield.Thetestspecimenisimmersedinaliquidheliumbathataknowntemperatureduringtesting.TheNbSncompositetestconductorhasamonolithicstructurewithatotalround-cross-sectionalareathatislessthan2mm.Thespecimengeometryusedinthistestmethodisaninductivelycoiledspecimen.Deviationsfromthistestmethodwhichareallowedforroutinetestsandotherspecificrestrictionsaregiveninthisstandard.Nb3Snconductorswithcriticalcurrentsabove1000Aortotalcross-sectionalareasgreaterthan2mmcanbemeasuredwiththepresentmethodwithananticipatedreductioninprecisionandamoresignificantself-fieldeffect(seeAnnexC).Other,morespecialized,specimentestgeometriesmaybemoreappropriateforlargerconductortestingwhichhavebeenomittedfromthispresentstandardforsimplicityandtoretainprecision.ThetestmethodgiveninthisstandardshouldinprincipleapplytoNbSncompositewiresfabricatedbyanyotherprocess.Thismethodisalsoexpectedtoapplytoothersuperconductingcompositewiresaftersomeappropriatemodifications.
【中国标准分类号】:K04
【国际标准分类号】:29_050
【页数】:40P;A4
【正文语种】:英语