GB 7290-1987 扭曲向列型动态驱动液晶显示器件测试方法
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基本信息
| 标准名称： | 扭曲向列型动态驱动液晶显示器件测试方法 |
| 中标分类： | 电子元器件与信息技术 >> 半导体分立器件 >> 温差电致冷足见与器件 |
| 替代情况： | 被GB/T 4619-1996代替 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1987-12-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 10页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 电子元器件与信息技术 半导体分立器件 温差电致冷足见与器件
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforSteady-StateHeatFluxMeasurementsandThermalTransmissionPropertiesbyMeansoftheGuarded-Hot-PlateApparatus
【原文标准名称】:使用单面护热板设备测量稳态热通量和热传导特性的标准试验方法
【标准号】:ASTMC177-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:
【英文主题词】:erroranalysis;guarded-hot-plate;heatflow;heatflux;steady-state;thermalconductivity;thermalresistance;thermaltransmission;thermalconductance;thermaltesting;Erroranalysis;Heatflux;Hotplate/boxmethods;Insulatingmaterials;T
【摘要】:Thistestmethodcoversthemeasurementofheatfluxandassociatedtestconditionsforflatspecimens.Theguarded-hot-plateapparatusisgenerallyusedtomeasuresteady-stateheatfluxthroughmaterialshavingax201C;lowx201D;thermalconductivityandcommonlydenotedasx201C;thermalinsulators.x201D;Acceptablemeasurementaccuracyrequiresaspecimengeometrywithalargeratioofareatothickness.Twospecimensareselectedwiththeirthickness,areas,anddensitiesasidenticalaspossible,andonespecimenisplacedoneachsideoftheguarded-hot-plate.Thefacesofthespecimensoppositetheguarded-hot-plateandprimaryguardareplacedincontactwiththesurfacesofthecoldsurfaceassemblies.Steady-stateheattransmissionthroughthermalinsulatorsisnoteasilymeasured,evenatroomtemperature.Thisisbecauseheatmaybetransmittedthroughaspecimenbyanyorallofthreeseparatemodesofheattransfer(radiation,conduction,andconvection);anyinhomogeneityoranisotropyinthespecimenmayrequirespecialexperimentalprecautionstomeasurethatflowofheat;hoursorevendaysmayberequiredtoachievethethermalsteady-state;noguardingsystemcanbeconstructedtoforcethemeteredheattopassonlythroughthetestareaofinsulationspecimenbeingmeasured;moisturecontentwithinthematerialmaycausetransientbehaviour;andphysicalorchemicalchangeinthematerialwithtimeorenvironmentalconditionmaypermanentlyalterthespecimen.Applicationofthistestmethodondifferenttestinsulationsrequiresthatthedesignermakechoicesinthedesignselectionofmaterialsofconstructionandmeasurementandcontrolsystems.Thustheremaybedifferentdesignsfortheguarded-hot-plateapparatuswhenusedatambientversuscryogenicorhightemperatures.Testthickness,temperaturerange,temperaturedifferencerange,ambientconditionsandothersystemparametersmustalsobeselectedduringthedesignphase.AnnexA1isreferencedtotheuser,whichaddressessuchissuesaslimitationsoftheapparatus,thicknessmeasurementconsiderationsandmeasurementuncertainties,allofwhichmustbeconsideredinthedesignandoperationoftheapparatus.Apparatusconstructedandoperatedinaccordancewiththistestmethodshouldbecapableofaccuratemeasurementsforitsdesignrangeofapplication.Sincethistestmethodisapplicabletoawiderangeofspecimencharacteristics,testconditions,andapparatusdesign,itisimpracticaltogiveanall-inclusivestatementofprecisionandbiasforthetestmethod.Analysisofthespecificapparatususedisrequiredtospecifyaprecisionandbiasforthereportedresults.Forthisreason,conformancewiththetestmethodrequiresthattheusermustestimateandreporttheuncertaintyoftheresultsunderthereportedtestconditions.Qualificationofanewapparatus.Whenanewormodifieddesignisdeveloped,testsshallbeconductedonatleasttwomaterialsofknownthermalstabilityandhavingverifiedorcalibratedpropertiestraceabletoanationalstandardslaboratory.Testsshallbeconductedforatleasttwosetsoftemperatureconditionsthatcovertheoperatingrangefortheapparatus.Ifthedifferencesbetweenthetestresultsandthenationalstandardslaboratorycharacterizationaredeterminedtobesignificant,thenthesourceoftheerrorshall,ifpossible,beidentified.Onlyaftersuccessfulcomparisonwiththecertifiedsamples,cantheapparatusclaimconformancewiththistestmethod.Itisrecommendedthatchecksbecontinuedonaperiodicbasistoconfirmcontinuedconformanceoftheapparatus.Thethermaltransmissionpropertiesofaspecimenofmaterial:mayvaryduetothecom..........
【中国标准分类号】:P31
【国际标准分类号】:17_200_10
【页数】:23P.;A4
【正文语种】:英语
【原文标准名称】:使用单面护热板设备测量稳态热通量和热传导特性的标准试验方法
【标准号】:ASTMC177-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:
【英文主题词】:erroranalysis;guarded-hot-plate;heatflow;heatflux;steady-state;thermalconductivity;thermalresistance;thermaltransmission;thermalconductance;thermaltesting;Erroranalysis;Heatflux;Hotplate/boxmethods;Insulatingmaterials;T
【摘要】:Thistestmethodcoversthemeasurementofheatfluxandassociatedtestconditionsforflatspecimens.Theguarded-hot-plateapparatusisgenerallyusedtomeasuresteady-stateheatfluxthroughmaterialshavingax201C;lowx201D;thermalconductivityandcommonlydenotedasx201C;thermalinsulators.x201D;Acceptablemeasurementaccuracyrequiresaspecimengeometrywithalargeratioofareatothickness.Twospecimensareselectedwiththeirthickness,areas,anddensitiesasidenticalaspossible,andonespecimenisplacedoneachsideoftheguarded-hot-plate.Thefacesofthespecimensoppositetheguarded-hot-plateandprimaryguardareplacedincontactwiththesurfacesofthecoldsurfaceassemblies.Steady-stateheattransmissionthroughthermalinsulatorsisnoteasilymeasured,evenatroomtemperature.Thisisbecauseheatmaybetransmittedthroughaspecimenbyanyorallofthreeseparatemodesofheattransfer(radiation,conduction,andconvection);anyinhomogeneityoranisotropyinthespecimenmayrequirespecialexperimentalprecautionstomeasurethatflowofheat;hoursorevendaysmayberequiredtoachievethethermalsteady-state;noguardingsystemcanbeconstructedtoforcethemeteredheattopassonlythroughthetestareaofinsulationspecimenbeingmeasured;moisturecontentwithinthematerialmaycausetransientbehaviour;andphysicalorchemicalchangeinthematerialwithtimeorenvironmentalconditionmaypermanentlyalterthespecimen.Applicationofthistestmethodondifferenttestinsulationsrequiresthatthedesignermakechoicesinthedesignselectionofmaterialsofconstructionandmeasurementandcontrolsystems.Thustheremaybedifferentdesignsfortheguarded-hot-plateapparatuswhenusedatambientversuscryogenicorhightemperatures.Testthickness,temperaturerange,temperaturedifferencerange,ambientconditionsandothersystemparametersmustalsobeselectedduringthedesignphase.AnnexA1isreferencedtotheuser,whichaddressessuchissuesaslimitationsoftheapparatus,thicknessmeasurementconsiderationsandmeasurementuncertainties,allofwhichmustbeconsideredinthedesignandoperationoftheapparatus.Apparatusconstructedandoperatedinaccordancewiththistestmethodshouldbecapableofaccuratemeasurementsforitsdesignrangeofapplication.Sincethistestmethodisapplicabletoawiderangeofspecimencharacteristics,testconditions,andapparatusdesign,itisimpracticaltogiveanall-inclusivestatementofprecisionandbiasforthetestmethod.Analysisofthespecificapparatususedisrequiredtospecifyaprecisionandbiasforthereportedresults.Forthisreason,conformancewiththetestmethodrequiresthattheusermustestimateandreporttheuncertaintyoftheresultsunderthereportedtestconditions.Qualificationofanewapparatus.Whenanewormodifieddesignisdeveloped,testsshallbeconductedonatleasttwomaterialsofknownthermalstabilityandhavingverifiedorcalibratedpropertiestraceabletoanationalstandardslaboratory.Testsshallbeconductedforatleasttwosetsoftemperatureconditionsthatcovertheoperatingrangefortheapparatus.Ifthedifferencesbetweenthetestresultsandthenationalstandardslaboratorycharacterizationaredeterminedtobesignificant,thenthesourceoftheerrorshall,ifpossible,beidentified.Onlyaftersuccessfulcomparisonwiththecertifiedsamples,cantheapparatusclaimconformancewiththistestmethod.Itisrecommendedthatchecksbecontinuedonaperiodicbasistoconfirmcontinuedconformanceoftheapparatus.Thethermaltransmissionpropertiesofaspecimenofmaterial:mayvaryduetothecom..........
【中国标准分类号】:P31
【国际标准分类号】:17_200_10
【页数】:23P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 海水贝类干制品卫生标准 |
| 英文名称： | Hygienic standards of dried sea-shellfish product |
| 中标分类： | 医药、卫生、劳动保护 >> 卫生 >> 食品卫生 |
| ICS分类： | 食品技术 >> 肉、肉制品和其他动物类食品 >> 鱼和水产品 |
| 替代情况： | 被GB 10144-2005代替 |
| 发布日期： | 1996-06-19 |
| 实施日期： | 1996-09-01 |
| 首发日期： | 1996-06-19 |
| 作废日期： | 2005-10-01 |
| 归口单位： | 卫生部 |
| 起草单位： | 大连市卫生防疫站 |
| 出版日期： | 1900-01-01 |
| 页数： | 0 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 医药 卫生 劳动保护 卫生 食品卫生 食品技术 肉 肉制品和其他动物类食品 鱼和水产品
