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【英文标准名称】:StandardTestMethodforButadieneDimerandStyreneinButadieneConcentratesbyGasChromatography
【原文标准名称】:气相色谱法测定丁二烯浓缩物中丁二烯二聚物和苯乙烯的标准试验方法
【标准号】:ASTMD2426-1993
【标准状态】:现行
【国别】:美国
【发布日期】:1993
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:苯乙烯;丁二烯;润滑剂;石油产品;含量测定;色谱法;试验
【英文主题词】:Butadiene;Chromatography;Determinationofcontent;Lubricants;Petroleumproducts;Styrene;Testing
【摘要】:
【中国标准分类号】:G16
【国际标准分类号】:71_080_10
【页数】:3P;A4
【正文语种】:英语


【英文标准名称】:Industrialcommunicationnetworks-Profiles-Part3:Functionalsafetyfieldbuses-Generalrulesandprofiledefinitions
【原文标准名称】:工业通讯网络.剖面图.第3部分:功能安全数据总线.一般原则和剖面定义
【标准号】:IEC61784-3-2007
【标准状态】:作废
【国别】:国际
【发布日期】:2007-12
【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/SC65C
【标准类型】:()
【标准水平】:()
【中文主题词】:应用层;自动化;总线系统;总线;电路网络;通信;控制设备;控制系统;控制工艺学;数据通信;数据链层;数据处理;数据设备;数据传送;定义;数字的;数字数据;数字工程;电子数据处理;电气工程;电子仪器;电子系统;现场总线;制导系统;工业的;工业设施;信息交换;信息处理;信息技术;接口(数据处理);IT安全;制造;开放系统互连;物理层;过程控制;过程控制工程;工艺工程;加工工程;剖面图;规范;规范(验收);传输媒质
【英文主题词】:Applicationlayer;Automation;Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Dataprocessing;Dataservices;Datatransfer;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electronicinstruments;Electronicsystems;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);ITsecurity;Manufacturing;Opensystemsinterconnection;OSI;Physicallayers;Processcontrol;Processcontrolengineering;Processengineering;Productionengineering;Profile;Specification;Specification(approval);Transmissionmedia
【摘要】:ThispartoftheIEC61784-3seriesexplainssomecommonprinciplesthancanbeusedinthetransmissionofsafety-relevantmessagesamongparticipantswithinadistributednetworkusingfieldbustechnologyinaccordancewiththerequirementsofIEC61508seriesforfunctionalsafety.Theseprinciplescanbeusedinvariousindustrialapplicationssuchasprocesscontrol,manufacturingautomationandmachinery.Thispart1andtheIEC61784-3-xpartsspecifyseveralfunctionalsafetycommunicationprofilesbasedonthecommunicationprofilesandprotocollayersofthefieldbustechnologiesinIEC61784-1,IEC61784-2andtheIEC61158series.NOTE1Othersafety-relatedcommunicationsystemsmeetingtherequirementsofIEC61508seriesmayexistthatarenotincludedinthisstandard.NOTE2Itdoesnotcoverelectricalsafetyandintrinsicsafetyaspects.Electricalsafetyrelatestohazardssuchaselectricalshock.Intrinsicsafetyrelatestohazardsassociatedwithpotentiallyexplosiveatmospheres.Allsystemsareexposedtounauthorizedaccessatsomepointoftheirlifecycle.Additionalmeasuresneedtobeconsideredinanysafety-relatedapplicationtoprotectfieldbussystemsagainstunauthorizedaccess.IEC62443willaddressmanyoftheseissues;therelationshipwithIEC62443isdetailedinadedicatedsubclauseofthispart.NOTE3AdditionalprofilespecificrequirementsforsecuritymayalsobespecifiedinthefutureIEC61784-4.NOTE4Implementationofafunctionalsafetycommunicationprofileaccordingtothispartinadeviceisnotsufficienttoqualifyitasasafetydevice,asdefinedinIEC61508series.NOTE5TheresultingSILclaimofasystemdependsontheimplementationoftheselectedfunctionalsafetycommunicationprofilewithinthissystem.
【中国标准分类号】:N18;P76
【国际标准分类号】:25_040_40;35_100_05;35_160;35_240_50
【页数】:52P;A4
【正文语种】:英语