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JB/T 8248.4-1995 摄影镜头 杂光系数测量方法

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基本信息
标准名称:摄影镜头 杂光系数测量方法
中标分类: 仪器、仪表 >> 电影、照相、缩微、复印设备 >> 镜头
替代情况:原标准号GB 9918-1988;被JB/T 8248.4-1999代替
发布日期:
实施日期:2000-01-01
首发日期:
作废日期:2000-01-01
出版日期:
页数:6页
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所属分类: 仪器 仪表 电影 照相 缩微 复印设备 镜头
【英文标准名称】:Approvaltestingofwelders-Fusionwelding-Part4:Nickelandnickelalloys
【原文标准名称】:焊工的认可试验熔焊第4部分:镍及镍合金
【标准号】:ISO9606-4-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-04
【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/TC44
【标准类型】:()
【标准水平】:()
【中文主题词】:焊工;合格证明;镍;镍合金;资格鉴定;熔焊;焊接;试验
【英文主题词】:Definitions;Examinationofwelders;Fusionwelding;Nickel;Nickelalloys;Qualificationapproval;Qualifications;Testing;Testingrequirements;Weldertraining;Welders;Welding
【摘要】:Thisstandardspecifiesessentialrequirements,rangesofapproval,testconditions,acceptancerequirementsandcertificationfortheapprovaltestingofwelderperformancefortheweldingofnickel.Thisstandardappliestotheapprovaltestingofweldersforthefusionweldingofnickel.Thisstandardisintendedtoprovidethebasisforthemutualrecognitionbyexaminingbodiesforapprovalrelatingtowelders'competenceinthevariousfieldsofapplication.Testswillbecarriedoutinaccordancewiththisstandardunlessmoreseveretestsarespecifiedbytherelevantapplicationstandardwhentheseareapplied.Duringtheapprovaltesttheweldershouldberequiredtoshowadequatepracticalexperienceandjobknowledge(testnonmandatory)oftheweldingprocesses,materialsandsafetyrequirementsforwhichheistobeapproved;informationontheseaspectsisgiveninAnnexA.Thisstandardisapplicablewhenthewelder'sapprovaltestingisrequiredbythepurchaser,byinspectionauthoritiesorbyotherorganizations.Theweldingprocessesreferredtointhisstandardincludethosefusionweldingprocesseswhicharedesignatedasmanualorpartlymechanizedwelding.Itdoesnotcoverfullymechanizedandautomaticprocesses(see5.2).Thisstandardcoversapprovaltestingofweldersforworkonsemi-finishedandfinishedproductsmadefromwrought,forgedorcastmaterialtypeslistedin5.4.Thecertificateofapprovaltestingisissuedunderthesoleresponsibilityoftheexaminerorexaminingbody.
【中国标准分类号】:J33
【国际标准分类号】:25_160_01
【页数】:20P.;A4
【正文语种】:英语


【英文标准名称】:Programmablecontrollers-Part5:Communications
【原文标准名称】:可编程控制器第5部分:通信
【标准号】:IEC61131-5-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-11
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC65B
【标准类型】:()
【标准水平】:()
【中文主题词】:自动化;程序设计语言;数据处理;过程自动化;控制系统;程序控制器
【英文主题词】:Applications;Automation;Communication;Communicationsystems;Communications;Control;Controlengineering;Controlprogram;Controlsystems;Controllers;Dataexchange;Dataprocessing;Datatransfer;Definitions;Electriccontrolequipment;Electricalequipment;Industrial;Industries;Informationinterchange;Informationprocessing;Lowvoltage;Low-voltageequipment;Manufacturing;Processautomation;Processcontrol;Programmable;Programmablecontrollers;Programming;Programmingdevice;Programminglanguages;Specification(approval);Stores;Switchgear;Switchgears;Telecommunications;Terminology
【摘要】:ThispartofIEC61131specifiescommunicationaspectsofaprogrammablecontroller.ItspecifiesfromtheviewpointofaPChowanydevicecancommunicatewithaPCasaserverandhowaPCcancommunicatewithanydevice.Inparticular,itspecifiesthebehaviorofthePCasitprovidesservicesonbehalfofotherdevicesandtheservicesthePCapplicationprogramcanrequestfromotherdevices.ItisnotintendedtospecifyhowanydevicecancommunicatewithanydeviceusingaPCasarouterorgateway.ThebehaviorofthePCasacommunicationclientandserverisspecifiedindependentoftheparticularcommunicationsubsystem,butthecommunicationfunctionalitymaybedependentonthecapabilitiesofthecommunicationsubsystemused.Thescopeofthispartisasubsetofthe"communicationmodel"showninfigure2ofIEC61131-3;namelyfigures2cand2dareincludedinthescopeofthispart.Additionally,themeansdefinedinthispartofIEC61131maybeusedforcommunicationswithinaprogramorbetweenprograms.ThemappingofthePCbehaviortosomeparticularcommunicationssubsystemsisprovidedintheannexes.
【中国标准分类号】:N18
【国际标准分类号】:35_240_50
【页数】:99P.;A4
【正文语种】:英语