【英文标准名称】:StandardTestMethodforMeasuringExtremeHeat-TransferRatesfromHigh-EnergyEnvironmentsUsingaTransient,Null-PointCalorimeter
【原文标准名称】:用瞬变零点量热器测量高能环境的超级传热速率的方法
【标准号】:ASTME598-1996(2002)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:E21.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:测量仪器;航空航天运输;热传递;材料;测量技术;热量计;能量;航天技术
【英文主题词】:calirometer;convective;heatflux;heatfluxgage;null-point;radiative;transienttemperature
【摘要】:1.1Thistestmethodcoversthemeasurementoftheheat-transferrateortheheatfluxtothesurfaceofasolidbody(testsample)usingthemeasuredtransienttemperatureriseofathermocouplelocatedatthenullpointofacalorimeterthatisinstalledinthebodyandisconfiguredtosimulateasemi-infinitesolid.Bydefinitionthenullpointisauniquepositionontheaxialcenterlineofadisturbedbodywhichexperiencesthesametransienttemperaturehistoryasthatonthesurfaceofasolidbodyintheabsenceofthephysicaldisturbance(hole)forthesameheat-fluxinput.1.2Null-pointcalorimetershavebeenusedtomeasurehighconvectiveorradiantheat-transferratestobodiesimmersedinbothflowingandstaticenvironmentsofair,nitrogen,carbondioxide,helium,hydrogen,andmixturesoftheseandothergases.Flowvelocitieshaverangedfromzero(static)throughsubsonictohypersonic,totalflowenthalpiesfrom1.16togreaterthan4.65x101MJ/kg(5x102togreaterthan2x104Btu/lb.),andbodypressuresfrom105togreaterthan1.5x107Pa(atmospherictogreaterthan1.5x102atm).Measuredheat-transferrateshaverangedfrom5.68to2.84x102MW/m2(5x102to2.5104Btu/ft2-sec).1.3Themostcommonuseofnull-pointcalorimetersistomeasureheat-transferratesatthestagnationpointofasolidbodythatisimmersedinahighpressure,highenthalpyflowinggasstream,withthebodyaxisusuallyorientedparalleltotheflowaxis(zeroangle-of-attack).Useofnull-pointcalorimetersatoff-stagnationpointlocationsandforangle-of-attacktestingmayposespecialproblemsofcalorimeterdesignanddatainterpretation.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:17_200_10
【页数】:10P.;A4
【正文语种】:


【英文标准名称】:Respiratoryprotectivedevices-Compressedairlinebreathingapparatuswithdemandvalve-Apparatuswithafullmask-Requirements,testing,marking
【原文标准名称】:呼吸防护装置.带用量阀的压缩空气管路呼吸装置.全罩式装置.测试,要求和标记
【标准号】:BSEN14593-1-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-04-29
【实施或试行日期】:2005-04-29
【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】:事故预防;进气管;呼吸装置;压缩空气;压缩空气呼吸装置;压缩新鲜空气呼吸器;压缩空气设备;制造日期;定义;定义(术语);精密机械;全罩式面具;检验;使用说明书;实验室测试;管路呼吸装置;肺通气机;作标记;最低要求;操作说明书;呼吸器;规范(验收);测试;用户信息
【英文主题词】:Accidentprevention;Airinlethose;Breathingapparatus;Compressedair;Compressedairbreathings;Compressedfreshairrespirator;Compressed-airdevices;Dataofthemanufacturer;Definition;Definitions;Finemechanics;Fullfacemasks;Inspection;Instructionsforuse;Laboratorytesting;Linebreathingapparatus;Lungventilators;Marking;Minimumrequirements;Operationalinstructions;Respirators;Specification(approval);Testing;Userinformation
【摘要】:ThisEuropeanStandardspecifiesminimumrequirementsforcompressedairlinebreathingapparatuswithdemandvalveforusewithafullfacemaskasarespiratoryprotectivedevice.EscapeanddivingapparatusandapparatususedinabrasiveblastingoperationswithoutadditionalprotectivefeaturesarenotcoveredbythisEuropeanStandard,althoughcertainrequirementsaddressingtheuseinconjunctionwithescapeapparatusandescapeconditionsaregiven.Laboratoryandpracticalperformancetestsareincludedfortheassessmentofconformancetotherequirements.
【中国标准分类号】:C73
【国际标准分类号】:13_340_30
【页数】:38P.;A4
【正文语种】:英语