【英文标准名称】:PracticeforValidationofMultivariateProcessInfraredSpectrophotometers
【原文标准名称】:多变量过程红外分光光度计确认惯例
【标准号】:ANSI/ASTMD6122-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006
【实施或试行日期】:2006-07-18
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:分光光度计;证实
【英文主题词】:Controlcharts;Optics;Processinstruments;Spectrophotometers;Validation
【摘要】:Thispracticecoversrequirementsforthevalidationofmeasurementsmadebyonline,processnear-ormid-infraredanalyzers,orboth,usedinthecalculationofphysical,chemical,orqualityparameters(thatis,properties)ofliquidpetroleumproducts.Thepropertiesarecalculatedfromspectroscopicdatausingmultivariatemodelingmethods.Therequirementsincludeverificationofadequateinstrumentperformance,verificationoftheapplicabilityofthecalibrationmodeltothespectrumofthesampleundertest,andverificationofequivalencebetweentheresultcalculatedfromtheinfraredmeasurementsandtheresultproducedbytheprimarytestmethodusedforthedevelopmentofthecalibrationmodel.Whenthereisadequatevariationinpropertylevel,thestatisticalmethodologyofPracticeD6708isusedtoprovidegeneralvalidationofthisequivalenceoverthecompleteoperatingrangeoftheanalyzer.Forcaseswherethereisinadequatepropertyvariation,methodologyforlevelspecificvalidationisused.PerformanceValidationisconductedbycalculatingtheprecisionandbiasofthedifferencesbetweenresultsfromtheanalyzersystem(orsubsystem)producedbyapplicationofthemultivariatemodel,(suchresultsarehereinreferredtoasPredictedPrimaryTestMethodResults(PPTMRs)),versusthePrimaryTestMethodResults(PTMRs)forthesamesampleset.Resultsusedinthecalculationareforsamplesthatarenotusedinthedevelopmentofthemultivariatemodel.Thecalculatedprecisionandbiasarestatisticallycomparedtouser-specifiedrequirementsfortheanalyzersystemapplication.Foranalyzersusedinproductreleaseorproductqualitycertificationapplications,theprecisionandbiasrequirementforthedegreeofagreementaretypicallybasedonthesiteorpublishedprecisionofthePrimaryTestMethod.Note1Inmostapplicationsofthistype,thePTMisthespecification-citedtestmethod.Thispracticedoesnotdoesnotdescribeproceduresforestablishingprecisionandbiasrequirementsforanalyzersystemapplications.Suchrequirementsmustbebasedonthecriticalityoftheresultstotheintendedbusinessapplicationandoncontractualandregulatoryrequirements.Theusermustestablishprecisionandbiasrequirementspriortoinitiatingthevalidationproceduresdescribedherein.Thispracticedoesnotcoverproceduresforestablishingthecalibrationmodel(correlation)usedbytheanalyzer.CalibrationproceduresarecoveredinPracticesE1655andreferencestherein.Thispracticeisintendedasareviewforexperiencedpersons.Fornovices,thispracticewillserveasanoverviewoftechniquesusedtoverifyinstrumentperformance,toverifymodelapplicabilitytothespectrumofthesampleundertest,andtoverifyequivalencebetweentheparameterscalculatedfromtheinfraredmeasurementandtheresultsoftheprimarytestmethodmeasurement.Thispracticeteachesandrecommendsappropriatestatisticaltools,outlierdetectionmethods,fordeterminingwhetherthespectrumofthesampleundertestisamemberofthepopulationofspectrausedfortheanalyzercalibration.Thestatisticaltoolsareusedtodetermineiftheinfraredmeasurementresultsinavalidpropertyorparameterestimate.Theoutlierdetectionmethodsdonotdefinecriteriatodeterminewhetherthesampleortheinstrumentisthecauseofanoutliermeasurement.Thus,theoperatorwhoismeasuringsamplesonaroutinebasiswillfindcriteriatodeterminethataspectralmeasurementliesoutsidethecalibration,butwillnothavespecificinformationonthecauseoftheoutlier.Thispracticedoessuggestmethodsbywhichinstrumentperformancetestscanbeusedtoindicateiftheoutliermethodsarerespondingtochangesintheinstrumentresponse.
【中国标准分类号】:N50
【国际标准分类号】:17_180_30
【页数】:
【正文语种】:英语


【英文标准名称】:Non-destructivetesting-Metalmagneticmemory-Part3:Inspectionofweldedjoints
【原文标准名称】:无损检验.金属存储器.第3部分:焊接接口检验
【标准号】:ISO24497-3-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-11
【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/IIW/IIS
【标准类型】:()
【标准水平】:()
【中文主题词】:检验;磁化;金属管道;金属;无损检验;规范(验收);应力集中;测试;焊接接头;焊接工程
【英文主题词】:Inspection;Magnetization;Metalpipes;Metals;Non-destructivetesting;Specification(approval);Stressconcentration;Testing;Weldedjoints;Weldingengineering
【摘要】:ThispartofISO24497specifiesthegeneralrequirementsfortheapplicationofthemetalmagneticmemoryinspectionmethod(MMMinspection)asanon-destructivetestingmethodforqualityassuranceofweldedjointsofpressurizedcomponents.ThispartofISO24497maybeappliedtoweldedjointsinanytypeofproducts,pipelines,vessels,equipment,andmetalconstructions,asagreedwiththepurchaser.ThetermsanddefinitionsfortheprocessarecontainedinISO24497-1,andthegeneralrequirementsoftheprocessareinISO24497-2.
【中国标准分类号】:H26
【国际标准分类号】:19_100;25_160_40
【页数】:12P.;A4
【正文语种】:英语