HB 5220.47-2008 高温合金化学分析方法 第47部分:载体沉淀-二甲酚橙吸光光度法测定铅含量

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【英文标准名称】:StandardPracticeforObtainingBispectralPhotometricDataforEvaluationofFluorescentColor
【原文标准名称】:荧光颜色评价双光谱光度学数据获得的标准实施规程
【标准号】:ASTME2153-2001(2006)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:E12.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:bispectral;bispectrometer;calibration;color;colorimetry;Donaldsonmatrix;Donaldsonradiancefactor;fluorescence;instrumentalmeasurement;luminescence;radiancefactor;spectrophotometry
【摘要】:Thebispectralortwo-monochromatormethodisthedefinitivemethodforthedeterminationofthegeneral(illuminant-independent)radiation-transferpropertiesoffluorescentspecimens(2).TheDonaldsonradiancefactorisaninstrument-andilluminant-independentphotometricpropertyofthespecimen,andcanbeusedtocalculateitscolorforanydesiredilluminantandobserver.Theadvantageofthismethodisthatitprovidesacomprehensivecharacterizationofthespecimenrsquo;radiation-transferproperties,withouttheinaccuraciesassociatedwithsourcesimulationandvariousmethodsofapproximation.Thispracticeprovidesaprocedureforselectingtheoperatingparametersofbispectrometersusedforprovidingdataofthedesiredprecision.Italsoprovidesforinstrumentcalibrationbymeansofmaterialstandards,andforselectionofsuitablespecimensforobtainingprecisioninthemeasurements.1.1Thispracticeaddressestheinstrumentalmeasurementrequirements,calibrationprocedures,andmaterialstandardsneededforobtainingprecisebispectralphotometricdataforcomputingthecolorsoffluorescentspecimens.1.2Thispracticeliststheparametersthatmustbespecifiedwhenbispectralphotometricmeasurementsarerequiredinspecificmethods,practices,orspecifications.1.3Thispracticeappliesspecificallytobispectrometers,whichproducephotometricallyquantitativebispectraldataasoutput,usefulforthecharacterizationofappearance,asopposedtospectrofluorimeters,whichproduceinstrument-dependentbispectralphotometricdataasoutput,usefulforthepurposeofchemicalanalysis.1.4Thescopeofthispracticeislimitedtothediscussionofobject-colormeasurementunderreflectiongeometries;itdoesnotincludeprovisionsfortheanalogouscharacterizationofspecimensundertransmissiongeometries.Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:35_240_99
【页数】:10P.;A4
【正文语种】:


【英文标准名称】:Informationtechnology-Multimediacontentdescriptioninterface-Part9:Profilesandlevels
【原文标准名称】:信息技术.多媒体内容描述界面.第9部分:轮廓和等级
【标准号】:ISO/IEC15938-9-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1/SC29
【标准类型】:()
【标准水平】:()
【中文主题词】:元数据;数据表示;信息交换;MPEG;数据编码;数据处理;界面;多媒体;信息技术;定义;轮廓
【英文主题词】:Dataenciphering;Dataprocessing;Datarepresentation;Definitions;Informationinterchange;Informationtechnology;Interfaces;Metadata;MPEG;Multimedia;Profile
【摘要】:1GeneralThispartof15938-9collectsstandardprofilesandlevelsforMPEG-7,specifiedacrossallISO/IEC15938parts.Whileallpartsarepotentialcandidatesforprofiling,currentprofilesconcentrateonthedescriptiondefinitionlanguage[ISO/IEC15938-2],visual[ISO/IEC15938-3],audio[ISO/IEC15938-4]andmultimediadescriptionschemes[ISO/IEC15938-5],whicharebasedonthenamespaceversioningdefinedinschemadefinition[ISO/IEC15938-10].2OrganizationofthedocumentISO/IEC15938-9providessixclauses.Clause1setsoutthescopeofthisdocumentwhileClause2liststhenormativeandinformativedocumentreferences.Clause3providesdefinitionsfortermsand.Clause4providestheinformativepartofdescriptionforapplicationareasandfunctionalitywiththenormativepartoftablefortoolsusedandtheirconstraintsforeachofthestandardprofilesandlevels.Clause5providesatableofURIvaluesforeachstandardprofile,whileAnnexAcontainsacollectionofprofileschemaforeachofthestandardprofiles.
【中国标准分类号】:L81
【国际标准分类号】:35_040
【页数】:19P;A4
【正文语种】:英语