ANSI/TIA-455-171-A-2001 交替测量法进行短长度的多模渐变折射率光纤电缆和单模光纤电缆组件衰减量的测量

作者:标准资料网 时间:2024-05-01 05:06:32   浏览:9043   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:AttenuationbySubstitutionMeasurementforShort-LengthMultimodeGraded-IndexandSingleModeOpticalFiberCableAssemblies
【原文标准名称】:交替测量法进行短长度的多模渐变折射率光纤电缆和单模光纤电缆组件衰减量的测量
【标准号】:ANSI/TIA-455-171-A-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电信;玻璃纤维电缆;电缆组件;多模;衰减;单;长度;纤维光缆;短的;指数;单模纤维;阻尼(波);光电子学;光纤;组件;测量;交替;光学纤维
【英文主题词】:Assemblies;Attenuation;Cableassembly;Damping;Fibreopticalcables;Fibreoptics;Glassfibrecables;Indices;Length;Measurement;Monomodefibres;Multimode;Opticalfibres;Optoelectronics;Short;Single;Substitution;Telecommunications
【摘要】:SpecifiesthecomponentstogetherwiththemodelsandmeasurementproceduresneededforverificationofbalancedtwistedpaircablingThisstandardwaslistedforpublicreviewinthe2/11/2000issueofStandardsAction.Itisbeingresubmittedduetosubstantivechangestothetext.
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:
【正文语种】:英语


下载地址: 点击此处下载
【英文标准名称】:TestMethodforLowFrequencyandSpuriousDisturbances
【原文标准名称】:低频与伪干扰的试验方法
【标准号】:ANSI/SCTE82-2007
【标准状态】:现行
【国别】:美国
【发布日期】:
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:SCTE
【标准类型】:()
【标准水平】:()
【中文主题词】:宽带;电缆通信;电缆;扰动;发射;低频;乱真信号;电源;通信;测试
【英文主题词】:Broadband;Cablecommunication;Cables;Disturbances;Emission;Lowfrequencies;Noise(spurioussignals);Powersupply;Telecommunications;Testing
【摘要】:TodefineandmeasurelowfrequencyandspuriousdisturbancescausedbyswitchedmodepowersuppliesorotheractivedevicesinbroadbandCableTelecommunicationsequipment.
【中国标准分类号】:M04
【国际标准分类号】:33_030
【页数】:
【正文语种】:英语


【英文标准名称】:StandardGuideforEvaluatingEffectivenessofAdmixturesforSoilStabilization
【原文标准名称】:土壤稳定用外加剂效果评定的标准指南
【标准号】:ASTMD4609-2008
【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】:D18.15
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:admixturescreening;Harvardapparatus;liquidlimit;moisturecontent;moisture-density;particlesize;plasticlimit;plasticityindex;soilstabilization;unconfinedcompressivestrength;volumechange;Admixtures(soil);Chemicalanalysis--soil/rock/r
【摘要】:Thisguideisintendedtoassistusersandproducersofsoilmodifiers,andstabilizersintheevaluationofaproduct''spotentialforimprovingasoil''sengineeringproperties(suchasdeformationunderload,shearstrength,andvolumestability).Theresultsofthesetestscanbeusedtomakeadecisiontocontinueexperimentationtoassesslongevity,durability,andpracticalvalue,andestablishappropriateratesofapplicationforfieldtrials.Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection,andthelike.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors.PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thisguidedescribeslaboratorytechniquesforevaluatingtheeffectivenessofadmixturesforimprovingtheengineeringpropertiesoffine-grainedsoils.1.2Effectivenessisassessedbycomparingtheunconfinedcompressivestrength(UCS),moisturesusceptibility,andmoisture-densityrelationships(MD)oftreatedanduntreatedsoils.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject''smanyuniqueaspects.Thewordx201C;Standardx201D;inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:5P.;A4
【正文语种】:英语