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NF E86-031-2006 合金钢或非合金钢立式锅炉设备.支脚

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【英文标准名称】:Verticalcylindricaltanksofunalloyedandalloysteel-Supportingshoes.
【原文标准名称】:合金钢或非合金钢立式锅炉设备.支脚
【标准号】:NFE86-031-2006
【标准状态】:现行
【国别】:法国
【发布日期】:2006-06-01
【实施或试行日期】:2006-06-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Alloysteels;Dimensions;Specification;Storages;Supports;Terms;Unalloyedsteels
【摘要】:
【中国标准分类号】:J98
【国际标准分类号】:23_020_10
【页数】:8P.;A4
【正文语种】:其他


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【英文标准名称】:Electricaltestmethodsforlowvoltageenergycables
【原文标准名称】:低压节能电缆的电气试验法
【标准号】:BSEN50395-2005
【标准状态】:作废
【国别】:英国
【发布日期】:2005-11-14
【实施或试行日期】:2005-11-14
【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】:电缆;通信电缆;传播技术;定义;电气工程;电气试验;电磁特性;电磁试验;绝缘电阻;绝缘;低电压;低压电缆;低压技术;额定电压;规范;规范(验收);表面绝缘电阻;试验;电压;电压测量
【英文主题词】:Cablesheaths;Cables;Communicationcables;Communicationtechnology;D.C.resistance;Defects;Definition;Definitions;Direct-currentvoltagestability;Electriccables;Electricalcords;Electricalengineering;Electricalinsulatingmaterials;Electricalsafety;Electricaltesting;Electromagneticproperties;Electromagnetictests;Insulated;Insulatedcables;Insulatingcoverings;Insulatingresistance;Insulations;Lowvoltage;Low-tensioncables;Low-voltagetechnology;Powerlines;Ratedvoltage;Specification;Specification(approval);Surfaceinsulationresistance;Surfaces;Testing;Voltage;Voltagemeasurement
【摘要】:EN50396containsnon-electricaltestmethodsrequiredforthetestingofharmonizedlowvoltageenergycables,especiallythoseratedatuptoandincluding450/750V.NOTE1AdescriptionoftheoriginofthesetestmethodsandofthebackgroundtotheENaregivenintheIntroductionandAnnexA.Theparticularcablestandarddictatesthetestswhichneedtobeperformedontherelevantcabletype.Italsospecifieswhetherthespecifictestisatypetest(T),asampletest(S)oraroutinetest(R)fortheparticularcabletype.NOTE2T,SandRaredefinedintherelevantcablestandard.Therequirementstobemetduringorafterthetestarespecifiedfortheparticularcabletypeintherelevantcablestandard.However,sometestrequirementsareobviousanduniversal,suchasthefactthatnocracksshalloccurduringozonetest,andthesearestatedintheparticulartestmethod.TestmethodsforusespecificallyinutilitypowercablesarenotcoveredbythisEN.TheycanbefoundinHD605.TestmethodsforusespecificallyincommunicationscablesaretheresponsibilityofCENELECTC46X.AtpresentsuchtestmethodsaregiveninEN50289(series).
【中国标准分类号】:K13
【国际标准分类号】:29_060_20
【页数】:18P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforMeasurementofPneumaticPermeabilityofPartiallySaturatedPorousMaterialsbyFlowingAir
【原文标准名称】:用流动空气测定局部饱水孔隙材料气动渗透性的标准试验方法
【标准号】:ASTMD6539-2000(2006)e2
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【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】:D18.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:airflow;flexiblewallpermeameter;permeability;permeameter;pneumaticpermeability;rigidwallpermeameter;Flowingairtest;Partially-saturatedporousmaterials;Pneumaticpermeability;Porousmedia/materials
【摘要】:Thistestmethodappliestotheone-dimensionallaminar(viscous)flowofairinporousmaterialssuchassoil.Note18212;Thistestmethoddealswithporousmaterialswithbothgaseous(air)andliquid(porewater)mobilefluids:Theliquidphaseismuchlesscompressible,hasahigherviscosity,andismuchmoretightlyboundtothesolidphasebychemicalforces.Theassumptionofsingle-phaseflowmaystillbepresumedtobevalidsincethetestgradientensuringtheconditionsoflaminarflowmaybelowenoughthatflowoftheliquidphaseisnegligible.Thedegreeofsaturationofthespecimenshallbelessthanthatwhichwouldproducesignificantinternaltransportofporewateroralterthecontinuityofairvoidsundertheappliedpneumaticgradients.Themaximumpermissibledegreeofsaturationmustbeevaluatedbyanexperiencedanalyst.Innoinstanceshallthespecimenbesosaturatedthatporewaterappearsattheexitofthepermeametercellduringthetest.Thistestmethodisbasedontheassumptionthattherateofmassflowthroughthespecimenisconstantwithtime.Note28212;Whenaspecimencontainsvolatilematerialsthisassumptionisviolated.Themassofgasflowingoutwillbegreaterthanthatflowingin,thepneumaticgradientisindeterminateandthetestmaybecomemeaningless.Suchspecimensposespecialproblemsandmustbedecontaminatedbeforeanalysisinordertominimizehealthandsafetyconcernsandtopreventcontaminationofthetestapparatus.Thepneumaticpermeabilityofporousmaterialsmaybestronglydependentonavarietyofphysicalpropertiesincludingthevoidratio,thedegreeofsaturation,percentanddirectionofcompaction,andsoforth.Itisbeyondthescopeofthistestmethodtoelaboratethesedependencies.Rather,thistestmethodisintendedtobeameasurementtechniquefordeterminingthepneumaticpermeabilityunderacertainsetoflaboratoryconditions.Itistheresponsibilityoftherequestortospecifywhichsoilparametersmustbecontrolledtoensureavalidextensionofthetestresultstofieldconditions.ItisassumedthatDarcy''sLawisvalid.ThevalidityofDarcy''slawmaybeevaluatedbyplottingthevolumetricflowthroughthespecimenagainstthedifferentialpressuredropacrossthespecimen.Iftheindividualtestpointsliewithin25%ofastraightlinepassingthroughtheorigin,thenDarcy''slawmaybetakenasvalid.Note38212;Darcy''slawisvalidonlywhensaturationdoesnotchangeovertime.Longmeasurementtimesassociatedwiththeuseofbubblemetersandmanometersmayindirectlybeanuncontrolledsourceofvariabilitywhenplottingflowversuspressuredrop(see8.2).Therecommendeduseofdigitalelectronicflowandpressuresensorsleadstoconsiderablyreducedmeasurementtimesbecausetheusercanquicklydeterminebyinspectionwhenasteadystateconditionhasbeenreached.Atthatpointonlyasinglereadingneedstobetakenforareliablemeasurement.Arapidcourseofmeasurementwillminimizedehydrationofpartiallysaturatedspecimens.Note48212;Humidifyingthetestgastominimizespecimendehydrationisnotrecommendedbecause:(1)thereisnopracticalwaytoeithermeasureorcontroltherelativehumidityofthetestgas,eitherattheinletoroutletofthespecimen;(2)thecalibrationoftheelectronicflowmeterisfordryaironlyandwouldbecomeunreliableinthepresenceofwatervapor,especiallyinviewofthepotentialforirreversibleadsorptionofmoistureonthesensorelements;(3)thereisadangerofpermanentwatercondensationinthestatictransfer..........
【中国标准分类号】:P13
【国际标准分类号】:13_080_20
【页数】:10P.;A4
【正文语种】:英语