【英文标准名称】:Fibreopticcommunicationsubsystembasictestprocedures-Testproceduresforgeneralcommunicationsubsystems-Collectionandreductionoftwo-dimensionalnearfielddataformultimodefibrelasertransmitters
【原文标准名称】:光纤通信子系统基本试验程序.一般通信子系统的试验程序.多模纤维激光发射机用二维近场数据的采集和整理
【标准号】:BSEN61280-1-4-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-05-13
【实施或试行日期】:2003-05-13
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:发射机;降低;二维;电信;光学;光波导;电气工程;光纤;测量;试验;通信系统;规程;多模纤维;测量装置;发射机输出;获得;纤维;近场;数据
【英文主题词】:Acquisition;Communicationsystems;Data;Dataacquisition;Documentations;Electricalengineering;Fibreoptics;Fibres;Laserengineering;Laserequipment;Lasers;Mathematicalcalculations;Measurement;Measuringdevices;Measuringtechniques;Methods;Multilingual;Multimodefibres;Nearfield;Nearfieldmeasuringvalue;Opticalwaveguides;Optics;Procedures;Ratings;Reducing;Telecommunications;Testing;Transmitteroutput;Transmitters;Two-dimensional
【摘要】:ThispartofIEC61280setsforthastandardprocedureforthecollectionoftwo-dimensionalfibreopticnearfieldgrayscaledataandsubsequentreductiontoone-dimensionaldataexpressedasasetofthreesampledparametricfunctionsofradiusfromthefibre'sopticalcenter.Theobjectofthisstandardistoreducemeasurementerrorsandinter-laboratoryvariation,supportingaccuratemathematicalpredictionofminimumguaranteedlinklengthingigabitandtengigabitfibreopticdatacommunicationssystems.Theseradialfunctionsareintendedtocharacterizefibreopticlasersourcesforuseinmathematicalmodelspredictingtheminimumguaranteedlengthofacommunicationslink.Althoughavailableasabyproduct,estimationofthenearfielddiameterisnotanobjective.
【中国标准分类号】:M33
【国际标准分类号】:33_180_01
【页数】:24P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforHandling,Transporting,Shipping,Storage,Receiving,andApplicationofThermalInsulationMaterialsForUseinContactwithAusteniticStainlessSteel
【原文标准名称】:奥氏体不锈钢上用绝热材料的加工,运输,海运,贮藏,验收和应用的标准实施规程
【标准号】:ASTMC929-1994(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1994
【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】:C16.20
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:application;austeniticstainlesssteel;chlorideion;externalstresscorrosioncracking;handling;insulation;packaging;receiving;shipping;storage;transporting;Austeniticstainlesssteelthermalinsulation;Chlorideanalysis--insulat
【摘要】:Insulationsthatareusedasapartofthethermalinsulationsystemincontactwithausteniticstainlesssteelsmaybecomecontaminatedwithwatersolublechlorideionswhich,inturn,ifpermittedtoreachthestainlesssteelsurface,couldcontributetoexternalstresscorrosioncracking(ESCC).Therefore,itisimportanttoreducetheexposureofsuchinsulatingmaterialstowater-solublechlorideioncompoundsatallstagesofmanufacture,handling,shipping,storage,andapplication.Duringmanufacture,precautionsshallbetakentominimizewatersoluble-chlorideioncontent,bothinthematerialandassurfacecontamination.Oncethemanufactureiscomplete,caremustbeexercisedduringhandling,transporting,shipping,storage,receiving,andapplicationtoavoidcontaminationwithchlorideionsthatcanbetransportedbywaterthroughtheinsulationmaterialsontothestainlesssteelsurface.Thispracticepresentscriteriawhich,iffollowed,willminimizetherisksofESCCassociatedwiththeapplicationofinsulationmaterials.Itshouldbeemphasized,however,thatbecauseofthemanyvariablefactorspresent,completefreedomfromESCCcannotbeassuredunderallcircumstances,evenwhenfollowingtheguidanceofthispractice.Continuedprotectionoftheinsulationandthestainlesssteelsurfacefrommoistureandcontaminationaftertheinsulationsystemisinstalledandoveritsentireservicelifeisofsignificantimportance.In-servicecontaminationcanoccurfrommanysources;forexample,fromairbornecontaminates,rainorsaltspray,periodicfiresprinklersystemtests,wash-downs,orprocessleakage.Weatherbarrierjacketingsystemsandproperapplicationshouldbechosentoprovidelong-termprotectionintheintendeduseenvironment.Theentireinsulationsystemshouldbeperiodicallyinspectedandmaintained.Insulationthatissuspectedofcontaminationshouldberetestedorimmediatelyreplaced.Washdownofinsulatedpipeandequipmentshouldbeavoided.Wheneverpossible,protectivecoatingsorfinishesshouldbeapplieddirectlytothestainlesssteelsurfaceastheprimarysourceofcorrosionprotection.1.1Thispracticeisintendedtoprovideguidanceanddirectioninthehandling,transporting,shipping,storage,receiving,andapplicationofthermalinsulatingmaterialstobeusedasasurfacetreatmentoraspartofthethermalinsulationsystemincontactwithausteniticstainlesssteel.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q25
【国际标准分类号】:27_220
【页数】:3P.;A4
【正文语种】:英语