DIN 19243-3-1986 测量、控制、调节；借助于过程计算机的自动化的基本函数.双向通信
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【英文标准名称】:Measurementandcontrol;basicfunctionsofprocess-computeraidedautomation;intercommunication
【原文标准名称】:测量、控制、调节；借助于过程计算机的自动化的基本函数.双向通信
【标准号】:DIN19243-3-1986
【标准状态】:作废
【国别】:德国
【发布日期】:1986-10
【实施或试行日期】:
【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】:自动控制系统;电气工程;过程控制;测量;信息交流;过程测量和控制技术;控制系统;数据传送;数据处理;自动化;计算机控制;过程控制系统;控制技术
【英文主题词】:
【摘要】:
【中国标准分类号】:N18
【国际标准分类号】:35_240_50
【页数】:6P;A4
【正文语种】:德语
【英文标准名称】:StandardPracticeforEvaluatingRetroreflectivePavementMarkingsUsingPortableHand-OperatedInstruments
【原文标准名称】:使用便携式手动仪器评估反射路标的标准实施规程
【标准号】:ASTMD7585/D7585M-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D04.38
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:pavementmarkings;retroreflection
【摘要】:Thispracticeprovidesproceduresforthedeterminationoftheretroreflectiveperformanceofpavementmarkings.Thispracticedoesnotsettheminimumretroreflectancevaluesforpavementmarkings,itdescribessamplingcriteriafordeterminingtheretroreflectivepropertiesofpavementmarkings,whichthencanbeusedtodeterminecompliancewithaspecification.Itistheresponsibilityoftheagencyhavingjurisdictiontosettheacceptableretroreflectivityvalueswithintheirownspecifications.Thispracticedoesnotpurporttoaddressalltheconcernsregardingcontaminationofthemarkings,butthefollowingmaybehelpful.Itisveryimportantthatthemarkingsbeingevaluatedarecleananddry.Iftheevaluationisbeingusedrelativetoameasureoftheperformanceofacontractor,itisimperativethatthepartiesagreebeforehandonthedefinitionofcleananddry.Therearemanyformsofcontaminationonaroadwaythatwilllowertheretroreflectivityreadingsofamarking,butnotallofthemcanberemoved.Asphaltoilandrubberskidmarksareexamples.Loosedirtcanberemovedbypressurewashing,perhapsusingsoap,brushingorhigh-pressureair,however,thesetechniquesareusuallyinsufficienttoremovedirtthatispackedintothemarkingsurface.Careshouldbetakentoselectareasthataretypicalofthemarkingsection,avoidingareasofpainttrackingorcontamination,forexample.Itmaybeusefultotakephotographsusingadigitalcameraandagoodmacrolenstobeabletoseethecontaminationonorbetweentheglassbeads.1.1Thispracticedescribesseveralfieldtechniquestoevaluatetheretroreflectivepropertiesofpavementmarkingscontainingretroreflectingoptics(forexample,centerlinesandedgelines)andappliedtotheroadsurface.Thetechniquesdescribedinthispracticecontainsamplingcriteriasuchasthelengthoftestsectionsandthenumberofmeasurementsneeded.Thepracticeisbasedonretroreflectivemeasurementsmadewithportablehand-operatedinstrumentsincompliancewithTestMethodE1710.1.2Thedataobtainedfromthispracticecanbeusedtodeterminetheacceptanceorrejectionofaprojectbasedonspecifiedlevelsofretroreflectivityestablishedbytheagencyhavingjurisdiction.1.3Thispracticecanbeusedfortheevaluationofnewlyinstalledorexistingpavementmarkings.Whentestingnewlyappliedpavementmarkings,itisrecommendedthattheevaluationbedonenosoonerthan48hoursafterapplicationbutbefore30daysafterapplicationsothatexcessretroreflectiveoptics,suchasglassspheres,arenolongerpresent.1.4Theassessmenttechniquesinthispracticearebasedonbestpracticesanddesignedtoprovidethreelevelsofconfidenceintermsofquantifyingtheretroreflectiveperformanceofmarkings.Eachtechniquerepresentsatradeoffbetweenthenumberofmeasurementsandtheconfidenceoftheretroreflectiveperformanceofthemarkingsunderstudy.1.5Thispracticecanbeusedbyagenciesasisormaybecustomizedtomeetanagencyx2019;sspecificneeds.Whereapplicable,thepracticedescribesareaswheredifferentassumptionscouldbemade,whichwouldimpactthesamplingneedsandtheconfidencelevelsoftheresults.Whendeviationsfromthispracticearemade,theyshallbedocumentedinthetestreport.Note18212;Whenmeasuringnewlyinstalledpavementmarkings,thereareseveralfactorsthatcontributetoerroneousvaluesformeasurementsmadewithinashorttimeafterapplication,sucha......
【中国标准分类号】:Q85
【国际标准分类号】:93_080_20
【页数】:6P.;A4
【正文语种】:英语
【英文标准名称】:Containmentmonitoringinstrumentationforearlydetectionofdevelopingdeviationsfromnormaloperationinlightwaterreactors.
【原文标准名称】:早期检测轻水反应堆偏离正常运行工况用的安全壳监测仪表
【标准号】:IEC60910-1988
【标准状态】:现行
【国别】:国际
【发布日期】:1988
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC45A
【标准类型】:()
【标准水平】:()
【中文主题词】:核反应堆;沾污;污染剂量器;运行;核安全;仪器装置;检测;监督(认可);核技术;辐射;电气工程;轻水反应堆;偏差
【英文主题词】:
【摘要】:ThisstandardhasbeenprovidedforincorporationasannexIIintotheIAEASafetyGuideNo.50-SG-D12thetextofwhichisreproducedwithoutchange.Theannexprovidesrecommendationsformeasurementsthatallowoperatordiagnosisofdevelopingdeviati
【中国标准分类号】:F84
【国际标准分类号】:27_120_99
【页数】:6P;A4
【正文语种】:英语
