JJG (电子) 15002-1988 1023型正弦信号发生器(试行)

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【英文标准名称】:Samplingandanalysisofnickel,ferronickelandnickelalloys-Methodfordeterminationofsiliconinferronickel(gravimetricmethod)
【原文标准名称】:镍、镍铁和镍合金的取样与分析.第9部分:镍铁中硅的测定方法(重力分析法)
【标准号】:BS6783-9-1986
【标准状态】:现行
【国别】:英国
【发布日期】:1986-12-31
【实施或试行日期】:1986-12-31
【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】:化学分析和试验;镍铁;沉淀法;挥发物测定;重量分析;硅;铁合金;安全措施;再现性;含量测定;试验条件
【英文主题词】:Chemicalanalysisandtesting;Determinationofcontent;Ferro-alloys;Ferronickel;Gravimetric;Gravimetricanalysis;Nickel;Nickelcontent;Nickel-containingalloys;Processes;Silicon;Siliconcontent;Silicones;Testreports;Testing
【摘要】:Forasiliconcontentintherange0.2%to4.0%(m/m).
【中国标准分类号】:H13
【国际标准分类号】:77_100
【页数】:8P.;A4
【正文语种】:英语


【英文标准名称】:Modularorderforthedevelopmentofmechanicalstructuresforelectronicequipmentpractices-Sectionalspecification-Interfaceco-ordinationdimensionsforthe25mmequipmentpractice-Detailspecification-Dimensionsforsubracks,chassis,backpl
【原文标准名称】:研制电子设备机械构件用模块排序.25mm设备的接口配合尺寸分规范.第2节:辅助框架、底盘、底板、面板及插入件
【标准号】:BSEN60917-2-2-1997
【标准状态】:现行
【国别】:英国
【发布日期】:1997-04-15
【实施或试行日期】:1997-04-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:辅助框架;尺寸协调;间隙;插座;印制电路板;界面;规范(验收);尺寸;模数;电气工程;电子设备及元件;板条;详细规范
【英文主题词】:Assemblies;Backpanels;Chassis;Components;Coordinates(mathematics);Definition;Definitions;Design;Developments;Dimensionstandards;Dimensions;Electricalengineering;Electronicengineering;Electronicequipment;Enclosures;Frontpanels;Interfacesofelectricalconnections;Manufacturing;Mechanicalinterfaces;Modular;Modularcoordination;Modularco-ordinations;Panels;Plug-inunits;Printed-circuitboards;Racks;Standards;Structuralsystems;Structure;Structuring;Subracks;Suitableforplug-inconnection;Valves;25mmequipmentpractices
【摘要】:ThissectionofIEC917-2isadetailspecificationwhichistobeusedinwholeorinpartinallfieldsofelectronicswheredevicesandsystemsaredesignedaccordingtothesectionalspecificationIEC917-2.Thepurposeofthispublicationisthespecificationofdimensionswhichwillensuremechanicalinterchangeabilityofsubracks,chassis,plug-inunits,backplanesandfrontpanels.ThesectionalspecificationIEC917-2hasembodiedwithinitanumberofsubracksystemsbasedon25mmthree-dimensionalmodularityandthebinaryadditiveprincipleforsubrackheights.ThedimensionsinthetablesofthisdetailspecificationarebasedononeofthesubracksystemstakenfromthesectionalspecificationIEC917-2.However,allsubracksystemswithinthesectionalspecificationarevalidinthisdetailspecification,providedtherelation-shipbetweenthedimensionsismaintained,i.e.thedimensionaldifferencebetweentheco-ordinationdimensionsHs,WsandDsanddimensionsHs0,etc.;Ws0,etc.,andDs0,etc.,shownintables1.2and3aretobemaintained.Thesubrackdimensionsarerelatedtocertaincabinet/rackdimensions,seeIEC917-2-1.Thefrontpaneldimensionsarerelatedtothemountingdimensionsofcertaincabinetsandracks,seeIEC917-2-1.Plug-inunitsaremountedinsubracks.Theyserveassupportsforelectrical,electronicandmechanicalcomponents.Theelectricalconnectionbetweenplug-inunitsandsubracksisbasedontheuseofconnectors.Alldimensionsaregiveninmillimetresandthedrawingsarefirstangleprojections.
【中国标准分类号】:L94
【国际标准分类号】:31_190
【页数】:40P.;A4
【正文语种】:英语