【英文标准名称】:InformationTechnology-CodingOfAudio-VisualObjects-Part2:VisualAMENDMENT1:StudioProfile
【原文标准名称】:信息技术.视听对象编码.第2部分:可视.修改件1:演播室轮廓
【标准号】:ANSI/INCITS/ISO/IEC14496-2AMD1-2002
【标准状态】:作废
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:编码;编码(数据转换);视觉的;信息技术;尺寸;视频信号;计算机制图;数据处理;图像处理;多媒体;信息交换;声信号;代码表示
【英文主题词】:
【摘要】:
【中国标准分类号】:L81
【国际标准分类号】:33_160_60;35_040
【页数】:
【正文语种】:英语


【英文标准名称】:Gasanalysis-Investigationandtreatmentofanalyticalbias
【原文标准名称】:气体分析.分析偏差的调查和处理
【标准号】:BSENISO15796-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-08
【实施或试行日期】:2008
【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】:分析;分析的;缺陷评估;偏差;化学分析和试验;化学成分;组分;浓缩;浓度(化学);数据分析;调试;定义;测定;含量测定;漂移;检验(质量保证);气体分析;气体混合物;气体分析方法;气体;检验设备;测量;测量不确定度;测量系统;测量技术;分析方法;精密度;灵敏度;稳定性;试验气体;试验;不确定度
【英文主题词】:Analysis;Analytical;Assessmentofdefects;Bias;Chemicalanalysisandtesting;Chemicalcomposition;Composition;Concentration;Concentration(chemical);Dataanalysis;Debugging;Definitions;Determination;Determinationofcontent;Drift;Examination(qualityassurance);Gasanalysis;Gasmixtures;Gas-analyticalmethods;Gases;Inspectionequipment;Measurement;Measuringincertainity;Measuringsystems;Measuringtechniques;Methodsofanalysis;Precision;Sensitivity;Stability;Testgases;Testing;Uncertainty
【摘要】:ThisInternationalStandardspecifiesgenericmethodsfordetectingandcorrectingbias(systematicerrors)ofanalyticalproceduresfortheanalysisofgases,usingreferencegasmixturesorreferenceanalyticalprocedures,aswellasforestimatingthecorrectionuncertainty.Themainsourcesof(andparametersaffecting)biasofanalyticalproceduresareinstrumentaldrift(time)andmatrixinterferences(matrixcomposition).Moreover,biasnormallyvarieswithanalyteconcentration.ThisInternationalStandardthereforeestablishesprotocolsfor?detectingandcorrectingdriftforananalyticalsystemoflimitedstability,?investigatingandhandlingbiasofastableanalyticalsystemforaspecifiedrangeofsamplecomposition,whichareintendedtobeusedinmethoddevelopmentandmethodvalidationstudies,eitherseparatelyorsequentially.ThisInternationalStandardspecifiesproceduresfortwooptions,applicabletosystematiceffects,asfollows:a)tracingtheobservedpatternofdeviationsandcorrectingfortheireffect,b)averagingovertheireffectsandincreasingtheuncertainty,wherenormallythefirstoptionentailsloweruncertaintyattheexpenseofhighereffort.Fortheconvenienceoftheuser,themethodsspecifiedinthisInternationalStandardaredescribedforproceduresofcompositionanalysis,i.e.proceduresformeasuringtheconcentrationofaspecifiedanalyteinagasmixture.However,theyareequallyapplicabletomeasurementsofphysico-chemicalpropertiesofagasorgasmixturerelevanttogasanalysis,andtranslationintothissubjectfieldisstraightforward.
【中国标准分类号】:A43
【国际标准分类号】:71_040_40
【页数】:42P.;A4
【正文语种】:英语