ASTM C 957-2006 带整体磨损面的高固体含量并使用冷却液的弹性防水薄膜的标准规范
作者:标准资料网 时间:2024-05-17 20:12:46 浏览:9184
来源:标准资料网
【英文标准名称】:StandardSpecificationforHigh-SolidsContent,ColdLiquid-AppliedElastomericWaterproofingMembraneWithIntegralWearingSurface
【原文标准名称】:带整体磨损面的高固体含量并使用冷却液的弹性防水薄膜的标准规范
【标准号】:ASTMC957-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:建筑;弹性体;薄膜材料;密封材料;密封件;规范(验收);表面;磨损
【英文主题词】:Construction;Elastomers;Membranes;Sealingmaterials;Seals;Specification(approval);Surfaces;Wear
【摘要】:
【中国标准分类号】:Q24
【国际标准分类号】:83_060;91_100_50
【页数】:4P;A4
【正文语种】:英语
【英文标准名称】:Surfacemountingtechnology-Transportationandstorageconditionsofsurfacemountingdevices(SMD)-Applicationguide
【原文标准名称】:地面安装工艺.地面安装设备(SMD)的运输和存储条件.应用指南
【标准号】:BSEN61760-2-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-06-15
【实施或试行日期】:1998-06-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:集成电路;航空运输;铁路运输;工作环境;道路运输;包装;表面安装设备;安全措施;储存;电子设备及元件;运输
【英文主题词】:Applications;Electronicengineering;Electronicequipmentandcomponents;Guidebooks;Recommendedapplication;SMD;SMD-diodes;Storage;Storagecondition;Surfacemounting;Transport
【摘要】:Describestransportationandstorageconditionsforsurfacemountingdevices(SMDs)toenabletheirtrouble-freeprocessing,withoutprejudicetoqualityorreliability.
【中国标准分类号】:J04
【国际标准分类号】:31_020
【页数】:10P;A4
【正文语种】:英语
【英文标准名称】:Opticalamplifiers-Testmethods-Multichannelparameters-Probemethods
【原文标准名称】:光学纤维放大器.试验方法.多道参数.探测法
【标准号】:BSEN61290-10-3-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-09-01
【实施或试行日期】:2003-09-01
【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】:放大器;基础规范;电气工程;纤维光学;光纤;激光脉冲方法;数学计算;测量;测量设备;测量技术;多道分析;多道记录;多道的;噪声系数;光学装置;光学纤维;光波导;光学;超速传动;参数;探测法;测头;稀土金属;额定值;小信号;规范;开关;试验
【英文主题词】:Amplifiers;Basicspecification;Electricalengineering;Fibreoptics;Laserpulsemethods;Mathematicalcalculations;Measurement;Measuringequipment;Measuringtechniques;Multichannelanalyzers;Multi-channelrecording;Multichannels;Noisefigure;Opticaldevices;Opticalfibres;Opticalwaveguides;Optics;Overdriving;Parameters;Probemethods;Probes;Rareearthmetals;Ratings;Small-signals;Specification;Switches;Testing
【摘要】:ThispartofIEC61290appliestocommerciallyavailableopticalfibreamplifiers(OFAs)usingactivefibrescontainingrare-earthdopantsasdescribedinthefollowing.TheobjectofthisinternationalstandardistoestablishuniformrequirementsforaccurateandreliablemeasurementsofthemultichannelgainandnoiseparametersasdefinedinIEC61291-4.Thetestmethodsdescribedinthisstandardusesmall-signalprobestoobtainthemultichannelgainandnoiseparameterswhileoneormorelaserssetthesaturationconditionfortheOFA.Thesemethodsareclassifiedasindirectinthatthereisnotalasersourceateachwavelengthofthemultichannelplan.Multichannelparametersareestimatedfromtheprobedata.IEC61290-10-1andIEC61290-10-2aretestmethodsformeasuringnoiseparametersusingpulsetechniques.Thesemethodsaredirectinthatthemultichannelsourceisrequiredtohavealaserateachwavelengthforwhichmultichannelparametersaretobemeasured.Probetechniquesprovideclearadvantagesformeasuringmultichannelgaincharacteristicsinthatasimplesourceconfigurationcanprovideparametersforawiderangeofmultichannelplans.Eitherasmall-signallaserorabroadbandnoisesourceservesastheprobesignal,andsingleormultiplelasersareusedtosettheOFAsaturationcondition.PulsemodulationofthesaturatingsourcesmayoptionallybeusedtomeasureASEatornearthesaturatinglaserwavelengthswithoutthecontaminatingeffectofsourcespontaneousemission.Ifpulsemodulationisnotused,thesourcespontaneousemissionmustbemeasured,anditseffectremovedfromthemeasuredresult.Foramultichannelsourcewithhighspontaneousemissionorathightotalinputpower,thesourcenoisesubtractionmethodcanleadtolargeuncertainty.Theprobetechniquesdescribedhereinareindirectinthatlasersourcesarenotrequiredateachchannelfrequency.AmeasurementerrorresultsfrominhomogeneouseffectsthatareDUTdependent.Themainsourceofthiserrorisspectralholeburning(see[1][2]and[4]).Theapplicabilityofpulsemodulationofthesaturatingsignal(s)andtheselectionofthemodulationratearedependentontheopticalfibreamplifier'scharacteristics,specificallyitstimeresponse.Theymaybeunsuitableforamplifierswithactiveautomaticlevelcontrol(ALC)orautomaticgaincontrol(AGC)circuits.Theymayalsobeunsuitableforpraseodymium-dopedOFAsthathavegainrelaxationtimesthataremuchfasterthanerbium-dopeddesigns.Forerbium-dopedfibreamplifiers(EDFAs),inaccuracyduetomodulationisgenerallysmall.RefertoIEC61290-10-2foradiscussionofinaccuracyduetopulserepetitionrate.Inordertopredictmultichannelparametersbyprobemethodsitisnecessarytoproperlysettheoutputlevelofthesaturatingsignal(s)tosimulatethesaturationeffectofaspecifiedmultichannelplan.Clause5describesamethodologytoaccomplishthisundertheassumptionofhomogeneousbehaviorwithinawavelengthregion.Thismethodologyhasthelimitationthatthewavelengthdependenceofanyoutputcouplingcircuitfromtheactivefibretotheoutputportisassumedtobezerowithindefinedregions.Parametersmeasuredwiththemethodsdescribedhereinincludechannelgain,channelsignal-spontaneousnoisefigure,andamplifiedspontaneousemission(ASE).Valuesmarkedwith(*)indicatepreliminaryvalues.Finalvaluesareunderstudy.note:1Numbersinbracketsrefertothebibliography.
【中国标准分类号】:M33
【国际标准分类号】:33_180_30
【页数】:24P.;A4
【正文语种】:英语
