ANSI/ASTM E1450-1992 液态氦中结构合金的抗拉强度测试方法
时间:2024-05-18 22:00:21 来源: 标准资料网 作者：标准资料网 阅读：9101
【英文标准名称】:TestMethodforTensionTestingofStructuralAlloysinLiquidHelium
【原文标准名称】:液态氦中结构合金的抗拉强度测试方法
【标准号】:ANSI/ASTME1450-1992
【标准状态】:现行
【国别】:美国
【发布日期】:1992
【实施或试行日期】:1999-02-18
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;材料强度;建筑材料;合金
【英文主题词】:strengthofmaterials;testing;alloys;buildingmaterials
【摘要】:Thistestmethoddescribesproceduresforthetensiontestingofstructuralalloysinliquidhelium.TheformatissimilartothatofotherASTMtensionteststandards,butthecontentsincludemodificationsforcryogenictestingwhichrequiresspecialapparatus,smallerspecimens,andconcernforserratedyielding,adiabaticheating,andstrain-rateeffects.Toconductatensiontestbythisstandard,thespecimeninacryostatisfullysubmergedinnormalliquidhelium(HeI)andtestedusingcrossheaddisplacementcontrolatanominalstrainrateof10sorless.Testsusingloadcontrolorhighstrainratesarenotconsidered.Thisstandardspecifiesmethodsforthemeasurementofyieldstrength,tensilestrength,elongation,andreductionofarea.ThedeterminationoftheelasticmodulusistreatedinTestMethodE111.Note1-Theboilingpointofnormalliquidhelium(HeI)atsealevelis4.2K(-452.1?For7.6?R).Itdecreaseswithgeographicelevationandis4.0K(-452.5?For7.2?R)attheNationalInstituteofStandardsandTechnologyinColorado,1677m(5500ft)abovesealevel.Inthisstandardthetemperatureisdesignated4K.ValuesstatedinSIunitsaretreatedasprimary.ValuesstatedinU.S.customaryunitsaretreatedassecondary.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection5.
【中国标准分类号】:H22
【国际标准分类号】:77_040_10
【页数】:
【正文语种】:英语
【英文标准名称】:Safetyofhouseholdandsimilarelectricalappliances-Part2:particularrequirementsforsurface-cleaningappliancesforhouseholduseemployingliquidsorsteam.
【原文标准名称】:家用和类似电器的安全性.第2部分:使用液体或蒸汽的表面清洁家用电器的特殊要求
【标准号】:NFC73-854/A1-2002
【标准状态】:作废
【国别】:法国
【发布日期】:2002-04-01
【实施或试行日期】:2002-04-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:Y62
【国际标准分类号】:97_030
【页数】:13P;A4
【正文语种】:其他
【英文标准名称】:Poweroutlets
【原文标准名称】:电源插座
【标准号】:UL231-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-08-06
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:附件;电流;设计;插座;电气的;电气工程;电气设备;设备;配件;安装材料;性能;插头;安全;安全要求;规范(验收);试验;电压
【英文主题词】:Accessories;Currents;Design;Electricsockets;Electrical;Electricalengineering;Electricalequipment;Equipment;Fittings;Mountingmaterials;Performance;Plugs;Safety;Safetyrequirements;Specification(approval);Testing;Voltage
【摘要】:1.1Theserequirementscoverpoweroutlets,withorwithoutintegralmountingpostsorpedestals,andpoweroutletfittingsforuseinaccordancewiththeNationalElectricalCode,NFPA70.1.2Apoweroutletcoveredbytheserequirements,althoughnotrestrictedtosuchuse,isintendedforuse:a)Atoutdoorlocationssuchasonfarms,atbuildingsites,andthelike,wherepowerisrequiredtooperateportable,mobile,ortemporarilyinstalledequipment,b)Tosupplypowertoamobilehomeorarecreationalvehicle,andc)Tosupplyshorepowertoboats.1.3Apoweroutletmaycontain:a)Attachmentplugreceptacles,b)Circuitbreakers,c)Fuseholders,d)Fusedswitchesandfacilitiesforwatt-hourmeters,ande)Provisionsforfieldinstalledcircuitbreakersorswitchesandfuses.1.4Poweroutletfittingscoveredbytheserequirementsareintendedforfactoryorfieldassemblyintoorinconjunctionwithpoweroutletsdesignedforsuchassembly.Fittingsmaybepanelsorcombinationunitsincorporatingreceptacles,disconnectingmeans,overcurrentprotectionorotherdevicesthathavebeendeterminedtobeequivalent.Aseparablemountingpostorpedestaltowhichpoweroutletsaretobemountedisalsoafitting.1.5Inadditiontoorinsteadofmountingtoapostorpedestalfittingasmentionedin1.4,apoweroutletmaybeconstructedformountingonandconnectiontoamountingpostorpedestalalsodesignedtobeusedwithothertypesofdistributionequipment.1.6Somepoweroutletsmayhavespecialfeaturesandmarkingstoindicatetheiracceptabilityforuseasserviceequipment.1.7Apoweroutletwithamountingpostisintendedformountinginconcrete.Apoweroutletwithamountingpedestalisintendedformountingonaconcreteslab.Unlessmarkedotherwise,amountingpostorpedestalfittingisnotintendedtoserveasthesolesupportofamastforoverheadwiring.
【中国标准分类号】:K30
【国际标准分类号】:29_120_30
【页数】:98P.;A4
【正文语种】:英语