ISO/TS 21749-2005 计量学仪器的测量和不确定性.重复测量和嵌套实验
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【英文标准名称】:Measurementanduncertaintyformetrologicalapplications-Repeatedmeasurementsandnestedexperiments
【原文标准名称】:计量学仪器的测量和不确定性.重复测量和嵌套实验
【标准号】:ISO/TS21749-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-02
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC69
【标准类型】:()
【标准水平】:()
【中文主题词】:不确定性;测量、检验和仪器;统计学;重复性;测量;试验;定义;计量学;复试;复述;测量不确定度
【英文主题词】:Definition;Definitions;Duplicatetest;Iteration;Measurement;Measurement,testingandinstruments;Measuringincertainity;Metrology;Repeatability;Statistics;Trials;Uncertainty
【摘要】:ThisTechnicalSpecificationfollowstheapproachtakenintheGuidetotheexpressionoftheuncertaintyofmeasurement(GUM)andestablishesthebasicstructureforstatingandcombiningcomponentsofuncertainty.Tothisbasicstructure,itaddsastatisticalframeworkusingtheanalysisofvariance(ANOVA)forestimatingindividualcomponents,particularlythoseclassifiedasTypeAevaluationsofuncertainty,i.e.basedontheuseofstatisticalmethods.AshortdescriptionofTypeBevaluationsofuncertainty(non-statistical)isincludedforcompleteness.ThisTechnicalSpecificationcoversexperimentalsituationswherethecomponentsofuncertaintycanbeestimatedfromstatisticalanalysisofrepeatedmeasurements,instruments,testitemsorcheckstandards.Itprovidesmethodsforobtaininguncertaintiesfromsingle-,two-andthree-levelnesteddesignsonly.Morecomplicatedexperimentalsituationswhere,forexample,thereisinteractionbetweenoperatoreffectsandinstrumenteffectsoracrosseffect,arenotcovered.ThisTechnicalSpecificationisnotapplicabletomeasurementsthatcannotbereplicated,suchasdestructivemeasurementsormeasurementsondynamicallyvaryingsystems(suchasfluidflow,electroniccurrentsortelecommunicationssystems).Itisnotparticularlydirectedtothecertificationofreferencematerials(particularlychemicalsubstances)andtocalibrationswhereartefactsarecomparedusingaschemeknownasa“weighingdesign”.Forcertificationofreferencematerials,seeISOGuide35[14].Whenresultsfrominterlaboratorystudiescanbeused,techniquesarepresentedinthecompanionguideISO/TS21748[15].ThemaindifferencebetweenISO/TS21748andthisTechnicalSpecificationisthattheISO/TS21748isconcernedwithreproducibilitydata(withtheinevitablerepeatabilityeffects),whereasthisTechnicalSpecificationconcentratesonrepeatabilitydataandtheuseoftheanalysisofvarianceforitstreatment.ThisTechnicalSpecificationisapplicabletoawidevarietyofmeasurements,forexample,lengths,angles,voltages,resistances,massesanddensities.
【中国标准分类号】:N04
【国际标准分类号】:17_020
【页数】:38P;A4
【正文语种】:英语
【原文标准名称】:计量学仪器的测量和不确定性.重复测量和嵌套实验
【标准号】:ISO/TS21749-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-02
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC69
【标准类型】:()
【标准水平】:()
【中文主题词】:不确定性;测量、检验和仪器;统计学;重复性;测量;试验;定义;计量学;复试;复述;测量不确定度
【英文主题词】:Definition;Definitions;Duplicatetest;Iteration;Measurement;Measurement,testingandinstruments;Measuringincertainity;Metrology;Repeatability;Statistics;Trials;Uncertainty
【摘要】:ThisTechnicalSpecificationfollowstheapproachtakenintheGuidetotheexpressionoftheuncertaintyofmeasurement(GUM)andestablishesthebasicstructureforstatingandcombiningcomponentsofuncertainty.Tothisbasicstructure,itaddsastatisticalframeworkusingtheanalysisofvariance(ANOVA)forestimatingindividualcomponents,particularlythoseclassifiedasTypeAevaluationsofuncertainty,i.e.basedontheuseofstatisticalmethods.AshortdescriptionofTypeBevaluationsofuncertainty(non-statistical)isincludedforcompleteness.ThisTechnicalSpecificationcoversexperimentalsituationswherethecomponentsofuncertaintycanbeestimatedfromstatisticalanalysisofrepeatedmeasurements,instruments,testitemsorcheckstandards.Itprovidesmethodsforobtaininguncertaintiesfromsingle-,two-andthree-levelnesteddesignsonly.Morecomplicatedexperimentalsituationswhere,forexample,thereisinteractionbetweenoperatoreffectsandinstrumenteffectsoracrosseffect,arenotcovered.ThisTechnicalSpecificationisnotapplicabletomeasurementsthatcannotbereplicated,suchasdestructivemeasurementsormeasurementsondynamicallyvaryingsystems(suchasfluidflow,electroniccurrentsortelecommunicationssystems).Itisnotparticularlydirectedtothecertificationofreferencematerials(particularlychemicalsubstances)andtocalibrationswhereartefactsarecomparedusingaschemeknownasa“weighingdesign”.Forcertificationofreferencematerials,seeISOGuide35[14].Whenresultsfrominterlaboratorystudiescanbeused,techniquesarepresentedinthecompanionguideISO/TS21748[15].ThemaindifferencebetweenISO/TS21748andthisTechnicalSpecificationisthattheISO/TS21748isconcernedwithreproducibilitydata(withtheinevitablerepeatabilityeffects),whereasthisTechnicalSpecificationconcentratesonrepeatabilitydataandtheuseoftheanalysisofvarianceforitstreatment.ThisTechnicalSpecificationisapplicabletoawidevarietyofmeasurements,forexample,lengths,angles,voltages,resistances,massesanddensities.
【中国标准分类号】:N04
【国际标准分类号】:17_020
【页数】:38P;A4
【正文语种】:英语
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