ISO 2531-1998 输水和输气用球墨铸铁管、配件、附件及其接头

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【英文标准名称】:Ductileironpipes,fittings,accessoriesandtheirjointsforwaterorgasapplications
【原文标准名称】:输水和输气用球墨铸铁管、配件、附件及其接头
【标准号】:ISO2531-1998
【标准状态】:作废
【国别】:国际
【发布日期】:1998-08
【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/TC5
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸;球墨铸铁;燃气管道;管道配件;机械性能;输水管道;金属导管;附件;铸铁;定义;作标记;尺寸测量;管;铸铁材料
【英文主题词】:Accessories;Castironmaterials;Cast-iron;Definitions;Dimensionalmeasurement;Dimensions;Gaspipelines;Marking;Mechanicalproperties;Metalconduits;Pipefittings;Pipes;Spheroidal-graphitecast-iron;Waterpipelines
【摘要】:ThisInternationalStandardspecifiestherequirementsandtestmethodsapplicabletoductileironpipes,fittings,accessoriesandtheirjointsfortheconstructionofpipelines—toconveywater(e.g.potablewater)orgas;—operatedwithorwithoutpressure;—installedbeloworaboveground.NOTE—InthisInternationalStandard,allpressuresarerelativepressuresexpressedinbars.ThisInternationalStandardgivesspecificationsformaterials,dimensionsandtolerances,mechanicalpropertiesandstandardcoatingsofpipes,fittingsandaccessories.Italsogivesperformancerequirementsforallcomponentsincludingjoints.ThisInternationalStandardcoverspipes,fittingsandaccessoriescastbyanytypeoffoundryprocessormanufacturedbyfabricationofcastcomponents,aswellascorrespondingjoints,ofasizerangeextendingfromDN40toDN2600inclusive.Itisapplicabletopipes,fittingsandaccessorieswhichare—manufacturedwithsocketed,flangedorspigotendsforjointingbymeansofvarioustypesofgasketswhicharenotwithinthescopeofthisInternationalStandard;—normallydeliveredinternallyandexternallycoated.note:1)100kPa=1bar
【中国标准分类号】:H41
【国际标准分类号】:23_040_10;23_040_40
【页数】:46P;A4
【正文语种】:英语


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【英文标准名称】:TransmissionandMultiplexing(TM)-DigitaleRadioRelaySystems(DRRS)-Part1:Antennasforpoint-to-point(P-P)radiolinksinthe1GHzto3GHzbands;EnglishversionEN300631-1V1.1.1:1997-11
【原文标准名称】:传输和多路复用.数字无线电中继系统(DRRS).第1部分:在1GHz至3GHz频带中点对点无线电通信链路用天线
【标准号】:EN300631-1-1997
【标准状态】:现行
【国别】:
【发布日期】:1998-09
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:传输技术;中继无线电;无线电通信链路;天线;电气工程;定义;定向天线;多路传送;无线电天线;复接;无线电电路;数字无线电通信链路;分类;远程通信;电信;无线电工程
【英文主题词】:Antennas;Classification;Definition;Definitions;Digitalradiolinks;Directionalaerials;Electricalengineering;Multiplex;Multiplexing;Radioantennas;Radiocircuits;Radioengineering;Radiolinks;Relayradio;Telecommunication;Telecommunications;Transmissiontechnique
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_120_40
【页数】:18P.;A4
【正文语种】:英语


【英文标准名称】:Specificationforkeyboardallocationofgraphiccharactersfordataprocessing
【原文标准名称】:数据处理用图形字符键盘排列规范
【标准号】:BS4822-1994
【标准状态】:现行
【国别】:英国
【发布日期】:1994-11-15
【实施或试行日期】:1994-11-15
【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】:数据处理设备;计算机硬件;图形显示字符;控制装置;布置;键盘;计算机终端;字符集;键(键盘);计算机外部设备;合格;ISO7位代码字符集;代码字符集
【英文主题词】:Charactersets;Codedcharactersets;Computerhardware;Computerperipheralequipment;Computerterminals;Conformity;Controldevices;Dataprocessingequipment;Graphiccharacters;ISOseven-bitcodedcharacterset;Keyboards;Keys(keyboards);Layout
【摘要】:ThisBritishStandardspecifiestheallocationofaminimumsetofgraphiccharacterstothealphanumericzoneofthealphanumericsectionofakeyboardthatconformstoBSISO/IEC9995-1:1994andtoBSISO/IEC9995-2:1994.TherepertoireofallocatedgraphiccharactersisthatoftheUnitedKingdom7-bitcodedcharactersetspecifiedbyBS4730:1993,supplementedbyafewcharactersfromLatinAlphabetNo.1ofBSISO/IEC10367:1991.Thealphanumericzoneofthekeyboardmaybeprovidedwitheither47or48keystowhichthegraphiccharactersareallocated.ThekeyboardarrangementsspecifiedinthisBritishStandardareintendedtoapplytokeyboardsofinformationtechnologyequipmentsuchaspersonalcomputers,workstations,andvisualdisplayunitsandothercomputerterminals.
【中国标准分类号】:L63
【国际标准分类号】:35_180
【页数】:12P.;A4
【正文语种】:英语