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ISO/IEC TR 24729-3-2009 信息技术.条目管理的射频识别.执行指南.第3部分:物流应用中超高频射频识别系统的实施和运行

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【英文标准名称】:Informationtechnology-Radiofrequencyidentificationforitemmanagement-Implementationguidelines-Part3:ImplementationandoperationofUHFRFIDInterrogatorsystemsinlogisticsapplications
【原文标准名称】:信息技术.条目管理的射频识别.执行指南.第3部分:物流应用中超高频射频识别系统的实施和运行
【标准号】:ISO/IECTR24729-3-2009
【标准状态】:现行
【国别】:国际
【发布日期】:2009-05-15
【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/IECJTC1/SC31
【标准类型】:()
【标准水平】:()
【中文主题词】:应用;自动;频带;编码;数据采集;数据交换;数据格式;数据处理;数据表示;数据传送;编码、字集码;货物交换;货物运输;频率;贸易;高频;高频工程;识别;执行;信息交换;信息技术;交替使用性;标记;物流;管理;操作;包装件;包装材料;实体分配管理;射频识别;无线电频率识别;射频;射频信号;RFID;选择;规范(验收);转发器;UHF
【英文主题词】:Applications;Automatic;Bandoffrequencies;Coding;Dataacquisition;Dataexchange;Dataformats;Dataprocessing;Datarepresentation;Datatransfer;Encoding;Exchangeofgoods;Freighttransport;Frequencies;Goodtrade;Highfrequencies;High-frequencyengineering;Identification;Implementation;Informationinterchange;Informationtechnology;Interoperability;Labellings;Logistics;Management;Operation;Packages;Packagingmaterial;Physicaldistributionmanagement;RadioFrequencyIdentification;Radiofrequencyidentifications;Radiofrequencies;Radio-frequencysignals;RFID;Selection;Specification(approval);Transponders;UHF
【摘要】:ThispartofISO/IECTR24729providesreferenceinformationandpracticalknowledgeintheselection,installationandapplicationofISO/IEC18000-6CRFIDReaders.RFIDReadersincludefixedmounted(suchasportal,conveyor,andwrapstations),handheld(tetheredandwireless),andmobilemounted(suchasthosefoundonforklifts).ThispartofISO/IECTR24729presentsguidelinestoimprovetheperformanceofRFIDdatacollectionsystemsformoresuccessfulapplicationsandtocovertheapproachesnecessarytoensurethattheoperationalrequirementsoftheenduseraremet.Manyofthetechniquesrecommendedaretheresultofpracticaltestsinworkingenvironments.However,eachapplicationisdifferentandthusthetechniquesrecommendedhereinmightnotbeapplicableinallsituations.
【中国标准分类号】:L71
【国际标准分类号】:35_040;35_240_60
【页数】:42P.;A4
【正文语种】:英语


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【英文标准名称】:Basematerialsforprintedcircuits-Part2:Specifications;SpecificationNo.5:Epoxidewovenglassfabriccopper-cladlaminatedsheetofdefinedflammability(verticalburningtest)(IEC60249-2-5:1987+A1:1989+A2:1992+A3:1993+A4:1994+A5:2000
【原文标准名称】:印制电路基材.第1部分:试验方法.5号规范.规定燃烧性的环氧织物玻璃纤维铜包覆层片
【标准号】:DINEN60249-2-5-2001
【标准状态】:作废
【国别】:德国
【发布日期】:2001-09
【实施或试行日期】:2001-09-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thedocumentgivesrequirementsforpropertiesofepoxidewovenglassfabriccopper-cladlaminatedsheet,generalpurposegrade,inthicknessof0,5mmupto6,4mm.
【中国标准分类号】:L30
【国际标准分类号】:13_220_40;31_180
【页数】:18P;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforDeterminationofLengthChangeofConcreteDuetoAlkali-SilicaReaction
【原文标准名称】:由于碱-硅反应引起的混凝土长度变化测定的标准试验方法
【标准号】:ASTMC1293-2008b
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C09.26
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:aggregate;alkali-silicareactivity;concrete;lengthchange;pozzolan;slag;Aggregate(potentialalkalireactivity);Changeinlength;Concreteaggregates;Expansivealkali-silicareactivity;Silica
【摘要】:Alkali-silicareactionisachemicalinteractionbetweensomesiliceousconstituentsofconcreteaggregatesandhydroxylions(1).Theconcentrationofhydroxylionwithintheconcreteispredominantlycontrolledbytheconcentrationofsodiumandpotassium(2).Thistestmethodisintendedtoevaluatethepotentialofanaggregateorcombinationofanaggregatewithpozzolanorslagtoexpanddeleteriouslyduetoanyformofalkali-silicareactivity(3,4).Whentestinganaggregatewithpozzolanorslag,theresultsareusedtoestablishminimumamountsofthespecificpozzolanorslagneededtopreventdeleteriousexpansion.Pozzolanorslagfromaspecificsourcecanbetestedindividuallyorincombinationwithpozzolanorslagfromothersources.Whenselectingasampleordecidingonthenumberofsamplesfortest,itisimportanttorecognizethevariabilityinlithologyofmaterialfromagivensource,whetheradepositofsand,gravel,orarockformationofanyorigin.Forspecificadvice,seeGuideC295.Thistestmethodisintendedforevaluatingthebehaviorofaggregatesinportlandcementconcretewithanalkali(alkalimetaloxide)contentof5.25kg/m3orinconcretecontainingpozzolanorslagwithanalkalicontentproportionallyreducedfrom5.25kg/m3Na2Oequivalentbytheamountofpozzolanorslagreplacingportlandcement.Thistestmethodassessesthepotentialfordeleteriousexpansionofconcretecausedbyalkali-silicareaction,ofeithercoarseorfineaggregates,fromtestsperformedunderprescribedlaboratorycuringconditionsthatwillprobablydifferfromfieldconditions.Thus,actualfieldperformancewillnotbeduplicatedduetodifferencesinconcretealkalicontent,wettinganddrying,temperature,otherfactors,orcombinationsofthese(5).Resultsoftestsconductedonanaggregateasdescribedhereinshouldformapartofthebasisforadecisionastowhetherprecautionsshouldbetakenagainstexcessiveexpansionduetoalkali-silicareaction.Resultsoftestsconductedoncombinationsofanaggregatewithpozzolansorslagshouldformapartofthebasisforadecisionastowhetherthespecificpozzolanorslag,whenusedintheamounttested,waseffectiveinpreventingexcessiveexpansion.Thesedecisionsshouldbemadebeforeaparticularaggregateisusedinconcreteconstruction.CriteriatodeterminethepotentialdeleteriousnessofexpansionsmeasuredinthistestaregiveninAppendixX1.WhentheexpansionsinthistestmethodaregreaterthanthelimitshowninX1.2,theaggregateorcombinationofaggregatewiththetestedamountofpozzolanorslagispotentiallyalkali-reactive.Supplementalinformationshouldbedevelopedtoconfirmthattheexpansionisactuallyduetoalkali-silicareaction.PetrographicexaminationoftheconcreteprismsshouldbeconductedafterthetestusingPracticeC856toconfirmthatknownreactiveconstituentsarepresentandtoidentifytheproductsofalkali-silicareactivity.Confirmationofalkali-silicareactionisalsoderivedfromtheresultsofthetestmethodsthisproceduresupplements(seeAppendixX1).Ifthesupplementaltestsshowthatagivenaggregateispotentiallydeleteriouslyreactive,additionalstudiesmaybeappropriatetoevaluatepreventivemeasuresinordertoallowsafeuseoftheaggregate.PreventivemeasuresarementionedintheAppendixtoSpecificationC33.Thistestmethoddoesnotaddressthegeneralsuitabilityofpozzolansorslagforuseinconcrete.ThesematerialsshouldcomplywithSpecificationC618,SpecificationC989,orSpecificationC1240.