BS 4168-1-1981 内六角螺钉和板手.米制系列.第1部分:内六角圆柱头螺钉规范
作者:标准资料网 时间:2024-05-22 04:21:04 浏览:9545
来源:标准资料网
【英文标准名称】:Hexagonsocketscrewsandwrenchkeys:metricseries.Specificationforhexagonsocketheadcapscrews
【原文标准名称】:内六角螺钉和板手.米制系列.第1部分:内六角圆柱头螺钉规范
【标准号】:BS4168-1-1981
【标准状态】:作废
【国别】:英国
【发布日期】:1981-07-31
【实施或试行日期】:1981-07-31
【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】:直径;长度;六角形;螺钉;凹头紧固件;尺寸;帽罩头紧固件
【英文主题词】:dimensions;screws(bolts);length;cap-headfasteners;diameter;hexagonalshape;socket-headfasteners
【摘要】:Specifiesscrewswiththreaddiametersfrom1.6mmuptoandincluding36mm.
【中国标准分类号】:J13
【国际标准分类号】:21_060_10
【页数】:8P.;A4
【正文语种】:英语
【英文标准名称】:Informationtechnology-Opensystemsinterconnection-Genericupperlayerssecurity-Overview,modelsandnotation
【原文标准名称】:信息技术.开放式系统互连.一般上层安全性.综述、模型和表示法
【标准号】:BSISO/IEC11586-1-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-11-15
【实施或试行日期】:1996-11-15
【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】:译码;数据传输;句法;开放系统互连;编码(数据转换);对话层;数据处理;数据布置;表示层;流程图;应用层(开放系统互连);数据;数据传送;信息交流;合格;数据安全;安全措施;通信规程
【英文主题词】:Applicationlayer;Communicationprocedures;Dataprocessing;Definitions;Informationinterchange;Informationtechnology;Models;Networkinterconnection;Notation;Opensystemsinterconnection;OSI;Overviews;Safeguardingtechniques
【摘要】:1ThisseriesofRecommendations|InternationalStandardsdefinesasetofgenericfacilitiestoassistintheprovisionofsecurityservicesinOSIapplications.Theseinclude:a)asetofnotationaltoolstosupportthespecificationofselectivefieldprotectionrequirementsinanabstractsyntaxspecification,andtosupportthespecificationofsecurityexchangesandsecuritytransformations;b)aservicedefinition,protocolspecificationandPICSproformaforanapplication-service-element(ASE)tosupporttheprovisionofsecurityserviceswithintheApplicationLayerofOSI;c)aspecificationandPICSproformaforasecuritytransfersyntax,associatedwithPresentationLayersupportforsecurityservicesintheApplicationLayer.2ThisRecommendation|InternationalStandarddefinesthefollowing:a)generalmodelsofsecurityexchangeprotocolfunctionsandsecuritytransformations,basedontheconceptsdescribedintheOSIUpperLayersSecurityModel(ITU-TRec.X.803|ISO/EC10745);b)asetofnotationaltoolstosupportthespecificationofselectivefieldprotectionrequirementsinanabstractsyntaxspecification,andtosupportthespecificationofsecurityexchangesandsecuritytransformations;c)asetofinformativeguidelinesastotheapplicationofthegenericupperlayerssecurityfacilitiescoveredbythisseriesofRecommendations|InternationalStandards.3ThisRecommendation|InternationalStandarddoesnotdefinethefollowing:a)acompletesetofupperlayersecurityfacilitieswhichmayberequiredbyotherRecommendations|InternationalStandards;b)acompletesetofsecurityfacilitiesforspecificapplications;c)themechanismsemployedtosupportsecurityservices.4Thesecurityexchangemodel,andsupportingnotation,areintendedbothforuseasthebasisofdefiningthesecurityexchangeserviceelementinsubsequentpartsofthisseriesofRecommendations|InternationalStandards,andforusebyanyotherASEwhichmayimportsecurityexchangesintoitsownspecification.
【中国标准分类号】:L79
【国际标准分类号】:35_100_70
【页数】:62P;A4
【正文语种】:英语
【英文标准名称】:Semifinishedproductsforforging.Tolerancesondimensionsshapeandmass
【原文标准名称】:锻造用半成品.形状,质量和尺寸规格公差
【标准号】:BSEN10031-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-03-27
【实施或试行日期】:2003-03-27
【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】:合金钢;坯锭;初轧方坯;尺寸公差;尺寸规格;锻造件;锻造;锻件;形状公差;热加工;极限偏差;质量(物质);金属;半成品;形状;规范(验收);钢产品;炼钢;钢;符号;公差(测量);非合金钢
【英文主题词】:Alloysteels;Billets;Blooms;Dimensionaltolerances;Dimensions;Forgedpieces;Forging;Forgings;Formtolerances;Hot-working;Limitdeviations;Mass;Metals;Semi-finishedproducts;Shape;Specification(approval);Steelproducts;Steelmaking;Steels;Symbols;Tolerances(measurement);Unalloyedsteels
【摘要】:ThisEuropeanStandardspecifiesthetolerancesondimensions,shapeandmassforsemi-finishedproductsintendedtoundergohotformingbyforging,i.e.blooms,slabsandbilletsmadeof:—generalpurposesteels,inaccordancewithEN10250-1to4;—steelsforpressurepurposes,inaccordancewithEN10222-1to5.Itdoesnotcoversemi-finishedproductsintendedfordropforgingwhicharecoveredbyEN10243-1.
【中国标准分类号】:J32
【国际标准分类号】:77_140_85
【页数】:12P.;A4
【正文语种】:英语
