MIL-C-24174
时间:2024-05-03 17:49:54 来源: 标准资料网 作者：标准资料网 阅读：8688
MIL-C-24174, MILITARY SPECIFICATION: CONTROL, NAVIGATION LIGHTS, GENERAL SPECIFICATION FOR (02 OCT 1987)., This specification covers the general requirements for controls for flashing of navigational lights under conditions requiring sequence flashing (pulsation) of these lights for signalling purposes.
【英文标准名称】:Determinationofgoldingoldjewelleryalloys-Cupellationmethod(fireassay)
【原文标准名称】:金合金首饰中金含量的测定.灰吹法(火试验法)
【标准号】:BSENISO11426-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-03-15
【实施或试行日期】:1999-03-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:金合金;化学分析和试验;含量测定;试样制备;再现性;金;检定;燃烧试验法;有色金属合金;珠宝;控制样品;定量分析;萃取分析法
【英文主题词】:Alloys;Assay;Chemicalanalysisandtesting;Determinationofcontent;Determinationprocedures;Gold;Goldalloys;Gravimetricanalysis;Jewellery
【摘要】:IntendedastherefereemethodforthedeterminationoffinenessinalloyscoveredbyBS29202.
【中国标准分类号】:H68
【国际标准分类号】:39_060
【页数】:16P.;A4
【正文语种】:英语
【英文标准名称】:PracticeforValidationofProcessStreamAnalyzerSystems
【原文标准名称】:工业生产液流分析仪校验系统的实施规程
【标准号】:ANSI/ASTMD3764-2006
【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】:流动性;分析仪
【英文主题词】:Abilitiestoflow;Analyzers;Catalysts;Lubricants;Petroleumproducts
【摘要】:ThispracticedescribesproceduresandmethodologiesbasedonthestatisticalprinciplesofPracticeD6708tovalidatewhetherthedegreeofagreementbetweentheresultsproducedbyatotalanalyzersystem(oritssubsystem),versustheresultsproducedbyanindependenttestmethodthatpurportstomeasurethesameproperty,meetsuser-specifiedrequirements.Thisisaperformance-basedvalidation,tobeconductedusingasetofmaterialsthatarenotusedaprioriinthedevelopmentofanycorrelationbetweenthetwomeasurementsystemsunderinvestigation.AresultfromtheindependenttestmethodishereinreferredtoasaPrimaryTestMethodResult(PTMR).ThispracticeassumesanycorrelationnecessarytomitigatesystemicbiasesbetweentheanalyzersystemandPTMhavebeenappliedtotheanalyzerresults.Thispracticerequiresthatboththeprimarymethodagainstwhichtheanalyzeriscomparedto,andtheanalyzersystemunderinvestigation,areinstatisticalcontrol.PracticesdescribedinPracticeD6299shouldbeusedtoensurethisconditionismet.Thispracticeappliesiftheprocessstreamanalyzersystemandtheprimarytestmethodarebasedonthesamemeasurementprinciple(s),or,iftheprocessstreamanalyzersystemusesadirectandwell-understoodmeasurementprinciplethatissimilartothemeasurementprincipleoftheprimarytestmethod.Thispracticealsoappliesiftheprocessstreamanalyzersystemusesadifferentmeasurementtechnologyfromtheprimarytestmethod,providedthatthecalibrationprotocolforthedirectoutputoftheanalyzerdoesnotrequireuseofthePTMRs(seeCase1inNote1).ThispracticedoesnotapplyiftheprocessstreamanalyzersystemutilizesanindirectormathematicallymodeledmeasurementprinciplesuchaschemometricormultivariateanalysistechniqueswherePTMRsarerequiredforthechemometricormultivariatemodeldevelopment.UsersshouldrefertoPracticeD6122fordetailedvalidationproceduresforthesetypesofanalyzersystems(seeCase2in).Note0Forexample,forthemeasurementofbenzeneinsparkignitionfuels,comparisonofaMid-InfraredprocessanalyzersystembasedonTestMethodD6277toaTestMethodD3606gaschromatographyprimarytestmethodwouldbeconsideredCase1,andthispracticewouldapply.Foreachsample,theMid-Infraredspectrumisconvertedintoasingleanalyzerresultusingmethodology(TestMethodD6277)thatisindependentoftheprimarytestmethod(TestMethodD3606).However,whenthesameanalyzerusesamultivariatemodeltocorrelatethemeasuredMid-InfraredspectrumtoTestMethodD3606referencevaluesusingthemethodologyofPracticeE1655,itisconsideredCase2andPracticeD6122applies.Inthiscase2example,thedirectoutputoftheanalyzeristhespectrum,andtheconversionofthismultivariateoutputtoananalyzerresultrequireuseofPracticeD6122,henceitisnotindependentoftheprimarytestmethod.PerformanceValidationisconductedbycalculatingtheprecisionandbiasofthedifferencesbetweenresultsfromtheanalyzersystem(orsubsystem)aftertheapplicationofanynecessarycorrelation,(suchresultsarehereinreferredtoasPredictedPrimaryTestMethodResults(PPTMRs)),versusthePTMRsforthesamesampleset.Resultsusedinthecalculationareforsamplesthatarenotusedinthedevelopmentofthecorrelation.Thecalculatedprecisionandbiasarestatisticallycomparedtouser-specifiedrequirementsfortheanalyzersystemapplication.
【中国标准分类号】:N50
【国际标准分类号】:17_120_10
【页数】:
【正文语种】:英语