ISO 12782-2-2012 土质.土壤和材料成分的浸出和物种形成的地球化学模型参数.第2部分:带连二亚硫酸盐的氧化铁和氢氧化铁晶体的萃取
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【英文标准名称】:Soilquality-Parametersforgeochemicalmodellingofleachingandspeciationofconstituentsinsoilsandmaterials-Part2:Extractionofcrystallineironoxidesandhydroxideswithdithionite
【原文标准名称】:土质.土壤和材料成分的浸出和物种形成的地球化学模型参数.第2部分:带连二亚硫酸盐的氧化铁和氢氧化铁晶体的萃取
【标准号】:ISO12782-2-2012
【标准状态】:现行
【国别】:国际
【发布日期】:2012-06
【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/TC190
【标准类型】:()
【标准水平】:()
【中文主题词】:化学分析和试验;土壤组分;定义;含量测定;连二硫酸盐;萃取;萃取分析法;地球化学;地质分析;氧化铁;抽样方法;土壤普查;土壤;试验
【英文主题词】:Chemicalanalysisandtesting;Compositionoftheground;Definitions;Determinationofcontent;Dithionates;Extraction;Extractionmethodsofanalysis;Geochemistry;Geologicalanalysis;Ironoxides;Samplingmethods;Soilsurveys;Soils;Testing
【摘要】:
【中国标准分类号】:Z18
【国际标准分类号】:13_080_05;13_080_10
【页数】:10P;A4
【正文语种】:英语
【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part5-4:Applicationlayerservicedefinition-Type4elements(IEC61158-5-4:2007);EnglishversionEN61158-5-4:2008,onlyonCD-ROM
【原文标准名称】:工业通讯网络.现场总线规范.第5-4部分:应用层设备定义.4型元件.仅为CD-ROM
【标准号】:DINEN61158-5-4-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-09
【实施或试行日期】:2008-09-01
【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】:应用层;应用;总线系统;总线;电路网络;通信;计算机应用;计算机控制;控制;控制设备;控制系统;控制工艺学;数据总线;数据通信;数据交换;数据传输线;数据连接系统;数据网络;数据处理;数据设备;数据传送;数据传输控制规程;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;英语;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);开放系统互连;操作技术;P-NET;过程控制工程;设备;规范;规范(验收);传输媒质
【英文主题词】:Applicationlayer;Applications;Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Computerapplications;Computerizedcontrol;Control;Controlequipment;Controlsystems;Controltechnology;Databus;Datacommunication;Dataexchange;Dataline;Datalinksystem;Datanetwork;Dataprocessing;Dataservices;Datatransfer;Datatransmissioncontrolprocedures;Definition;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Opensystemsinterconnection;Operationaltechniques;OSI;P-NET;Processcontrolengineering;Services;Specification;Specification(approval);Transmissionmedia
【摘要】:1.1OverviewThisstandardprovidescommonelementsforbasictime-criticalandnon-time-criticalmessagingcommunicationsbetweenapplicationprogramsinanautomationenvironmentandmaterialspecifictoType4fieldbus.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.ThisstandarddefinesinanabstractwaytheexternallyvisibleserviceprovidedbytheType4fieldbusapplicationlayerintermsofa)anabstractmodelfordefiningapplicationresources(objects)capableofbeingmanipulatedbyusersviatheuseoftheFALservice,b)theprimitiveactionsandeventsoftheservice;c)theparametersassociatedwitheachprimitiveactionandevent,andtheformwhichtheytake;andd)theinterrelationshipbetweentheseactionsandevents,andtheirvalidsequences.Thepurposeofthisstandardistodefinetheservicesprovidedto1)theFALuserattheboundarybetweentheuserandtheapplicationlayerofthefieldbusreferencemodel,and2)SystemsManagementattheboundarybetweentheapplicationlayerandSystemsManagementofthefieldbusreferencemodel.ThisstandardspecifiesthestructureandservicesoftheType4fieldbusapplicationlayer,inconformancewiththeOSIBasicReferenceModel(ISO/IEC7498)andtheOSIapplicationlayerstructure(ISO/IEC9545).FALservicesandprotocolsareprovidedbyFALapplication-entities(AE)containedwithintheapplicationprocesses.TheFALAEiscomposedofasetofobject-orientedapplicationserviceelements(ASEs)andalayermanagemententity(LME)thatmanagestheAE.TheASEsprovidecommunicationservicesthatoperateonasetofrelatedapplicationprocessobject(APO)classes.OneoftheFALASEsisamanagementASEthatprovidesacommonsetofservicesforthemanagementoftheinstancesofFALclasses.Althoughtheseservicesspecify,fromtheperspectiveofapplications,howrequestandresponsesareissuedanddelivered,theydonotincludeaspecificationofwhattherequestingandrespondingapplicationsaretodowiththem.Thatis,thebehavioralaspectsoftheapplicationsarenotspecified;onlyadefinitionofwhatrequestsandresponsestheycansend/receiveisspecified.ThispermitsgreaterflexibilitytotheFALusersinstandardizingsuchobjectbehavior.Inadditiontotheseservices,somesupportingservicesarealsodefinedinthisstandardtoprovideaccesstotheFALtocontrolcertainaspectsofitsoperation.1.2SpecificationsTheprincipalobjectiveofthisstandardistospecifythecharacteristicsofconceptualapplicationlayerservicessuitablefortime-criticalcommunications,andthussupplementtheOSIBasicReferenceModelinguidingthedevelopmentofapplicationlayerprotocolsfortime-criticalcommunications.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ItisthislatterobjectivewhichgivesrisetothediversityofservicesstandardizedasthevariousTypesofIEC61158,andthecorrespondingprotocolsstandardizedinsubpartsofIEC61158-6.Thisspecificationmaybeusedasthebasisforformalapplicationprogramminginterfaces.Nevertheless,itisnotaformalprogramminginterface,andanysuchinterfacewillneedtoaddressimplementationissuesnotcoveredbythisspecification,includinga)thesizesandoctetorderingofvariousmulti-octetserviceparameters,andb)thecorrelationofpairedrequestandconfirm,orindicationandresponse,primitives.
【中国标准分类号】:N18;P76
【国际标准分类号】:35_100_70;35_160
【页数】:74P.;A4
【正文语种】:英语
【英文标准名称】:Rollingbearings-Insertbearingsandeccentriclockingcollars-Boundarydimensionsandtolerances-Amendment1:Diameterseries3
【原文标准名称】:滚动轴承.外球面轴承和偏心锁圈.轮廓尺寸规格和公差.修改件1:直径系列3
【标准号】:ISO9628AMD1-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-03
【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/TC4
【标准类型】:()
【标准水平】:()
【中文主题词】:轴承间隙;轴承;夹紧环;安装环(机械部件);尺寸规格;偏心的;锁紧轴承;内间隙;径向轴承;滚动轴承;自位轴承;规格;符号;公差(测量);宽度
【英文主题词】:Bearingclearance;Bearings;Clampingrings;Collars(mechanicalcomponents);Dimensions;Eccentric;Insertbearings;Internalclearances;Radialbearings;Rollingbearings;Self-aligningbearings;Specifications;Symbols;Tolerances(measurement);Width
【摘要】:
【中国标准分类号】:J11
【国际标准分类号】:21_100_20
【页数】:7P;A4
【正文语种】:英语
