SAE AMS4119 Aluminum Alloy, Bars, Rolled Drawn, Or Cold Finished 4.4cu 1.5mg 0.60mn Stress-Relief Stretched (Cancelled J

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Product Code:SAE AMS4119
Title:Aluminum Alloy, Bars, Rolled Drawn, Or Cold Finished 4.4cu 1.5mg 0.60mn Stress-Relief Stretched (Cancelled Jan 1990)
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【英文标准名称】:Hydrometry-Fishpassesatflowmeasurementstructures
【原文标准名称】:液体比重测定法.流量测量结构中的Fishpasses
【标准号】:BSISO26906-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-04-30
【实施或试行日期】:2009-04-30
【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】:通道;鱼(动物);鱼类迁徙;鱼道;流动;流量计量;流量测量设备;液体比重测定法;测量;明渠;要求;规范(验收);结构;符号;保水与水流工程
【英文主题词】:Channels;Fish(animals);Fishmigrations;Fishways;Flow;Flowmeasurement;Flowmeasurementinstallations;Hydrometry;Measurement;Openchannels;Requirements;Specification(approval);Structures;Symbols;Waterretentionandflowworks
【摘要】:
【中国标准分类号】:A53
【国际标准分类号】:17_120_20;93_140
【页数】:40P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforMeasuringHeat-TransferRateUsingaThermalCapacitance(Slug)Calorimeter
【原文标准名称】:用热容量(芯棒)热量计测量传热速率的标准试验方法
【标准号】:ASTME457-2008
【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】:E21.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:calorimeter;heattransferrate;slugcalorimeter;thermalcapacitance;Calorimeter--aerospaceapplications;Heatingtests--aerospacematerials;Heattransfer;Slugcalorimeter;Thermalcapacitance
【摘要】:Thepurposeofthistestmethodistomeasuretherateofthermalenergyperunitareatransferredintoaknownpieceofmaterial(slug)forpurposesofcalibratingthethermalenvironmentintowhichtestspecimensareplacedforevaluation.Thecalorimeterandholdersizeandshapeshouldbeidenticaltothatofthetestspecimen.Inthismanner,themeasuredheattransferratetothecalorimetercanberelatedtothatexperiencedbythetestspecimen.Theslugcalorimeterisoneofmanycalorimeterconceptsusedtomeasureheattransferrate.Thistypeofcalorimeterissimpletofabricate,inexpensive,andreadilyinstalledsinceitisnotwater-cooled.Theprimarydisadvantagesareitsshortlifetimeandrelativelylongcool-downtimeafterexposuretothethermalenvironment.Inmeasuringtheheattransferratetothecalorimeter,accuratemeasurementoftherateofriseinback-facetemperatureisimperative.Intheevaluationofhigh-temperaturematerials,slugcalorimetersareusedtomeasuretheheattransferrateonvariouspartsoftheinstrumentedmodels,sinceheattransferrateisoneoftheimportantparametersinevaluatingtheperformanceofablativematerials.Regardlessofthesourceofthermalenergytothecalorimeter(radiative,convective,oracombinationthereof)themeasurementisaveragedoverthecalorimetersurface.Ifasignificantpercentageofthetotalthermalenergyisradiative,considerationshouldbegiventotheemissivityoftheslugsurface.Ifnon-uniformitiesexistintheinputenergy,theheattransferratecalorimeterwouldtendtoaveragethesevariations;therefore,thesizeofthesensingelement(thatis,theslug)shouldbelimitedtosmalldiametersinordertomeasurelocalheattransferratevalues.Wherelargeablativesamplesaretobetested,itisrecommendedthatanumberofcalorimetersbeincorporatedinthebodyofthetestspecimensuchthataheattransferratedistributionacrosstheheatedsurfacecanbedetermined.Inthismanner,morerepresentativeheattransferratevaluescanbedefinedforthetestspecimenandthusenablemoremeaningfulinterpretationofthetest.Theslugselectionmaybedeterminedusingthenomogramasaguide(seeAppendixX1).1.1Thistestmethoddescribesthemeasurementofheattransferrateusingathermalcapacitance-typecalorimeterwhichassumesone-dimensionalheatconductionintoacylindricalpieceofmaterial(slug)withknownphysicalproperties.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.Note18212;ForinformationseeTestMethodsE285,E422,E458,E459,andE511.
【中国标准分类号】:A54
【国际标准分类号】:17_200_10
【页数】:7P.;A4
【正文语种】:英语