SAE AS897 Fitting, Elbow, 90掳, Standard and Reducer, Flareless Tube to Pipe, External Thread
作者:标准资料网 时间:2024-05-24 02:19:48 浏览:9026
来源:标准资料网
Product Code:SAE AS897
Title:Fitting, Elbow, 90掳, Standard and Reducer, Flareless Tube to Pipe, External Thread
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:No scope available.
【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part4-7:Data-linklayerprotocolspecification-Type7elements
【原文标准名称】:工业通讯网络.数据总线规范.第4-7部分:数据联络层协议规范.7型元件
【标准号】:IEC61158-4-7-2007
【标准状态】:现行
【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】: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;数据连接系统;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;数字信号;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;链路层;开放系统互连;OSI;过程控制;过程控制工程;过程控制系统;协议规范;协议;信号;规范;规范(验收);传输媒质;传输协议
【英文主题词】:Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Definitions;Digital;Digitaldata;Digitalengineering;Digitalsignals;EDP;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Processcontrol;Processcontrolengineering;Processcontrolsystems;Protocolspecification;Protocols;Signals;Specification;Specification(approval);Transmissionmedia;Transmissionprotocol;WorldFIP
【摘要】:1.1GeneralThedata-linklayerprovidesbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Thisprotocolprovidescommunicationopportunitiestoallparticipatingdata-linkentitiesa)inasynchronously-startingcyclicmanner,accordingtoapre-establishedschedule,andb)inacyclicoracyclicasynchronousmanner,asrequestedeachcyclebyeachofthosedata-linkentities.Thusthisprotocolcanbecharacterizedasonewhichprovidescyclicandacyclicaccessasynchronouslybutwithasynchronousrestartofeachcycle.1.2SpecificationsThisstandardspecifiesa)proceduresforthetimelytransferofdataandcontrolinformationfromonedata-linkuserentitytoapeeruserentity,andamongthedata-linkentitiesformingthedistributeddatalinkserviceprovider;b)thestructureofthefieldbusDLPDUsusedforthetransferofdataandcontrolinformationbytheprotocolofthisstandard,andtheirrepresentationasphysicalinterfacedataunits.1.3ProceduresTheproceduresaredefinedintermsofa)theinteractionsbetweenpeerDL-entities(DLEs)throughtheexchangeoffieldbusDLPDUs;b)theinteractionsbetweenaDL-service(DLS)providerandaDLS-userinthesamesystemthroughtheexchangeofDLSprimitives;c)theinteractionsbetweenaDLS-providerandaPh-serviceproviderinthesamesystemthroughtheexchangeofPh-serviceprimitives.1.4ApplicabilityTheseproceduresareapplicabletoinstancesofcommunicationbetweensystemswhichsupporttime-criticalcommunicationsserviceswithinthedata-linklayeroftheOSIorfieldbusreferencemodels,andwhichrequiretheabilitytointerconnectinanopensystemsinterconnectionenvironment.Profilesprovideasimplemulti-attributemeansofsummarizinganimplementation’scapabilities,andthusitsapplicabilitytovarioustime-criticalcommunicationsneeds.1.5ConformanceThisstandardalsospecifiesconformancerequirementsforsystemsimplementingtheseprocedures.Thispartofthisstandarddoesnotcontainteststodemonstratecompliancewithsuchrequirements.
【中国标准分类号】:N18;P76
【国际标准分类号】:25_040_40;35_100_20;35_160;35_240_50
【页数】:124P;A4
【正文语种】:英语
【英文标准名称】:Pulp,paperandboard-Determinationofpentachlorophenolinanaqueousextract(ISO15320:2003);GermanversionENISO15320:2003
【原文标准名称】:纸浆、纸张和纸板.水提出物中五氯苯酚的测定
【标准号】:DINENISO15320-2004
【标准状态】:作废
【国别】:德国
【发布日期】:2004-03
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:纸包装;气相色谱法;纸板;水提出物;纸浆;抽样方法;化学分析和试验;测量规程;五氯酚;半成品;纸;含量测定;可食纸;试验;萃取;测定;包装件;食品包装;接触食品的材料
【英文主题词】:Aqueousextract;Board(paper);Chemicalanalysisandtesting;Determination;Determinationofcontent;Determinationprocedures;Ediblepaper;Extraction;Foodpackages;Gaschromatography;Materialsincontactwithfood;Packages;Paper;Paperpackings;Pentachlorophenol;Pulp;Samplingmethods;Semi-finishedproducts;Testing
【摘要】:ThisEuropeanStandardspecifiesatestmethodforthedeterminationofthetotalcontentofpentachlorophenol(PCP)inanaqueousextractinpulp,paperandboard.Thoughitisdevelopedforpaperandboardintendedtocomeintocontactwithfoodstuffs,itisapplicabletoallkindsofpulp,paperandboard.#,,#
【中国标准分类号】:Y30
【国际标准分类号】:85_040;85_060
【页数】:12P;A4
【正文语种】:德语
