DIN V 18550-2005 抹灰/粉刷和抹灰/粉刷系统.实施
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【英文标准名称】:Plastering/renderingandplastering/renderingsystems-Execution
【原文标准名称】:抹灰/粉刷和抹灰/粉刷系统.实施
【标准号】:DINV18550-2005
【标准状态】:现行
【国别】:德国
【发布日期】:2005-04
【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】:外部粉刷;内部漆;灰泥基质;混合涂料;建筑;灰泥;处理;纯度;隔热;规范(验收);颗粒成分;抗压强度;砖石工程;搅拌用水;温湿度预调节;颗粒形状;施工材料;混合比率;耐久性;定义;加筋;粘合剂;表面;粉刷;表面处理;分类;定义
【英文主题词】:
【摘要】:ThisstandarddealswiththeapplicationofplasterandrenderingmortarasspecifiedinDINEN998-1andDIN1168respectivelytowallsandceilingsofstucturesbuiltinaccordancewithcurrentstandards.Italsoappliestosimilarbackgroundse.g.inthoseinolderbuildings.
【中国标准分类号】:P97
【国际标准分类号】:91_100_10
【页数】:30P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforTensionTestingofStructuralAlloysinLiquidHelium
【原文标准名称】:液氦中结构合金抗拉试验的标准试验方法
【标准号】:ASTME1450-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:adiabaticheating;cryogenicproperties(ofmaterials);cryostats;discontinuousyielding;liquidhelium;lowtemperaturetests;mechanicalproperties(ofmaterials);tensileproperties;tensiontest
【摘要】:Tensiontestsprovideinformationonthestrengthandductilityofmaterialsunderuniaxialtensilestresses.Thisinformationmaybeusefulforalloydevelopment,comparisonandselectionofmaterials,andqualitycontrol.Undercertaincircumstances,theinformationmayalsobeusefulfordesign.Theforce-timeandforce-extensionrecordsforalloystestedinliquidheliumusingdisplacementcontrolareserrated(1).Serrationsareformedbyrepeatedburstsofunstableplasticflowandarrests.Theunstableplasticflow(discontinuousyielding)isafree-runningprocessoccurringinlocalizedregionsofthereducedsectionathigherthannominalratesofstrainwithinternalspecimenheating.Examplesofserratedstress-straincurvesforatypicalausteniticstainlesssteelwithdiscontinuousyieldingareshowninFig.2.Aconstantspecimentemperaturecannotbemaintainedatalltimesduringtestsinliquidhelium.Thespecimentemperatureatlocalregionsinthereducedsectionrisestemporarilyabove4Kduringeachdiscontinuousyieldingevent(seeFig.2),owingtoadiabaticheat.Thenumberofeventsandthemagnitudeoftheassociateddropsinmagnitudeofforceareafunctionofthematerialcompositionandotherfactorssuchasspecimensizeandtestspeed.Typically,alteringthemechanicaltestvariablescanmodifybutnoteliminatethediscontinuousyielding(2-4).Therefore,tensilepropertymeasurementsofalloysinliquidhelium(especiallytensilestrength,elongation,andreductionofarea)lacktheusualsignificanceofpropertymeasurementsatroomtemperaturewheredeformationismorenearlyisothermalanddiscontinuousyieldingtypicallydoesnotoccur.Thestress-strainresponseofamaterialtestedinliquidheliumdependsonwhetherforcecontrolordisplacementcontrolisused(3).Crossheaddisplacementcontrolisspecifiedinthisstandardsincethegoalismaterialcharacterizationbyconventionalmethods.Thepossibilityofadifferentandlessfavorablematerialresponsemustbetakenintoaccountwhendataareusedfordesigninactualapplicationssubjecttoforce-controlledconditions.FIG.2TypicalEngineeringStress-StrainCurvesandSpecimenTemperatureHistories,atFourDifferentNominalStrainRates,forAISI304LStainlessSteelTestedinLiquidHelium(4)1.1Thistestmethoddescribesproceduresforthetensiontestingofstructuralalloysinliquidhelium.TheformatissimilartothatofotherASTMtensionteststandards,butthecontentsincludemodificationsforcryogenictestingwhichrequiresspecialapparatus,smallerspecimens,andconcernforserratedyielding,adiabaticheating,andstrain-rateeffects.1.2Toconductatensiontestbythisstandard,thespecimeninacryostatisfullysubmergedinnormalliquidhelium(HeI)andtestedusingcrossheaddisplacementcontrolatanominalstrainrateof10x2212;3sx2212;1orless.Testsusingforcecontrolorhighstrainratesarenotconsidered.1.3Thisstandardspecifiesmethodsforthemeasurementofyieldstrength,tensilestrength,elongation,andreductionofarea.ThedeterminationoftheelasticmodulusistreatedinTestMethodE111.Note18212;Theboilingpointofnormalliquidhelium(HeI)atsealevelis4.2K(x2212;269x00B0;Corx2212;452.1x00B0;For7.6x00B0;R).Itdecreaseswit......
【中国标准分类号】:H22
【国际标准分类号】:
【页数】:9P.;A4
【正文语种】:英语
【英文标准名称】:Measurementsoftheelectricalpropertiesofelectronictubes.Part8:Measurementofcathodeheatingtimeandheaterwarm-uptime
【原文标准名称】:电子管电性能的测量第8部分:阴极加热时间和热丝加热时间的测量
【标准号】:IEC60151-8-1966
【标准状态】:现行
【国别】:国际
【发布日期】:1966
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC39
【标准类型】:()
【标准水平】:()
【中文主题词】:电子管;电性质和电现象;电子工程;阴极;电气工程;测量
【英文主题词】:Cathodes;Electricalengineering;Electricalpropertiesandphenomena;Electrontubes;Electronicengineering;Measurement
【摘要】:Doesnotapplyasarecommendationinthesenseofastandardbecauseoftheabsenceofdetaileddescriptionofmeasuringmethods.Itdealswiththedefinitionsandmeasuringmethodsincludingtherelevantcircuitsforthemeasurement.Precautionsreferr
【中国标准分类号】:L35
【国际标准分类号】:31_100
【页数】:12P.;A4
【正文语种】:英语
