【英文标准名称】:StandardTestMethodforSteady-StateThermalTransmissionPropertiesbyMeansoftheHeatFlowMeterApparatus
【原文标准名称】:用热流计法测定稳态热传递特性的标准试验方法
【标准号】:ASTMC518-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:C16.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:建筑;测量;热流;特性;试验;热传导;测量仪器;分析方法
【英文主题词】:calibration;erroranalysis;heatflowmeterapparatus;thermalresistance;heatflux;instrumentverification;thermalconductivity;thermaltesting
【摘要】:1.1Thistestmethodcoversthemeasurementofsteadystatethermaltransmissionthroughflatslabspecimensusingaheatflowmeterapparatus.1.2Theheatflowmeterapparatusisusedwidelybecauseitisrelativelysimpleinconcept,rapid,andapplicabletoawiderangeoftestspecimens.Theprecisionandbiasoftheheatflowmeterapparatuscanbeexcellentprovidedcalibrationiscarriedoutwithintherangeofheatflowsexpected.Thismeanscalibrationshallbecarriedoutwithsimilartypesofmaterials,ofsimilarthermalconductances,atsimilarthicknesses,meantemperatures,andtemperaturegradients,asexpectedforthetestspecimens.1.3Thisacomparative,orsecondary,methodofmeasurementsincespecimensofknownthermaltransmissionpropertiesshallbeusedtocalibratetheapparatus.Propertiesofthecalibrationspecimensmustbetraceabletoanabsolutemeasurementmethod.Thecalibrationspecimensshouldbeobtainedfromarecognizednationalstandardslaboratory.1.4Theheatflowmeterapparatusestablishessteadystateone-dimensionalheatfluxthroughatestspecimenbetweentwoparallelplatesatconstantbutdifferenttemperatures.Byappropriatecalibrationoftheheatfluxtransducer(s)withcalibrationstandardsandbymeasurementoftheplatetemperatu
【中国标准分类号】:A54
【国际标准分类号】:91_120_10
【页数】:15P.;A4
【正文语种】:


【英文标准名称】:Tabularlayoutsofarticlecharacteristicsforwashersandrings
【原文标准名称】:垫圈和环的特性表
【标准号】:DIN4000-3-1984
【标准状态】:作废
【国别】:德国
【发布日期】:1984-07
【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】:弹簧固定环;物资清单;锁紧垫圈;垫圈;数字代码;环;事物特性表
【英文主题词】:springretainingrings;lockwashers;washers;numericcodes;rings;tabularlayoutsofarticlecharateristics;inventories
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:21_020
【页数】:6P;A4
【正文语种】:德语