ISO 04259-4-2021.docx

INTERNATIONA1.STANDARDISO4259-4editionFirst2021-12Petro1.eumandre1.atedproducts一Precisionofmeasurementmethodsandresu1.tsP触地statistica1.contro1.chartstova1.idate,in-statistica1.-contro1.,statusfortheexecutionofastandardtestmethodinasing1.e1.aboratoryProduitspetro1.iersetConneXeSFide1.itedesmethodesdemesureetdeIeursresu1.tatsPartie4:Uti1.isationdecanesdecontr61.eStatiSxqUCPoUrVQ1.ider1.'Gtat"sousmaitriseStatistique'poure×6cutiond,unemethode(TeSS(Iinorma1.iseedansunseu1.IahoratoireReferencenumberISO4259-4:2021(E)©ISO2021COPYRIGHTPROTECTEDDOCUMENT©ISO2021IUirhM*hedbdi1.iUedotherwiseupdhi.or啪UIBndttaeDmk<nroni(ncm11ni10tf1.*Mqn1.C6pW11opypMRHt1.onmaytheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbe1.oworISO'smemberbodyinthecountryoftherequester.f),WV>fifiHipB1.andonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥曲ite：图洲跳触OQrgPub1.ishedinSwitzer1.andContentsForewordPageIVIitroductionScone.V13NormativereferencesTerms.definitions.«Vmhn1.qandabbreviatedterms.113.1Specifictermsanddefinitions243.2StatistSymboISandabbreviatedterms21.ica1.contro1.intheexecutionofastandardtestmethodbya1.aboratory34.134.2Contro1.chartdescription44.2.2GunuhMR:ChartS44.2.31.-chartsensitirityenhancementstrategy44.2.4In-statistica1.-contro1.conditions54.3to感喇。虫ProCeSS54?2Stpp1fcont1.rhrtworknrocp¾,54.44.3.3Stage2ofcontro1.chartworkprocessQ¾.1.mafe三rtchChangetransition.-9114.4.2Procedure!.concurrenttesting.124.43Pracedurp2.Ochart125Guidanceforinsufficientvariationornon-norma1.data135.1Genera1.requirement135.2I1.owtodea1.withinsufficientvariationornon-norma1.data.135.2.ZNinifiioranaktanation13Annex A (informative)Detai1.softhecontro1.chartworkprocess15Annex B (normative)Checkprocedures34Bib1.iography36ForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsttiugh(ISOtnnhnfaaibif1.4m11ra8wcekdHPfff1.PbBGgbodyhimuramMiaftbtand所7f(11okh曲扎mitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare0f1.S01.EC(VifY1的M51b、WFhtheeditoria1.ru1.esoftheISO/IECDirectives.Part2(secwww.iso.org/direc1.ives).AnytradeusedinthisR蝴。nrightsd醐nN脚蝴阳脚MnS郦f耐破赧Nfdocff1.据阍赧subjectofanypatentrightsidentifiedduringthedeve1.opmerUW4ie÷wmwVw1.1.beintheIntroductionand/orontheISO1.istofpatentdec1.arationsreceived(seewww.iso.org/patents).constitutenameendorsement,documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsandU明泉加OrRan俱feg悯O1.ass忠Eif1.S皿窿inwJ憎i观SnBa吊2/Mdead焦PAtreS地w¼w.isO.orgisoforewordhtmI.伟饿府偎依惭怦纲曲湖然惭福对懦他it框蛆£跳僦肺龊¾帆傩眺S部也m他ee/ue/sStandardization(CEN),Iechnica1CommitteeCEN/TC19,Gaseousand1.iquidfue1.s,1.ubricantsandre1.atedproductsofpetro1.eum,syntheticandbio1.ogica1.origin,inaccordancewiththeAgreementontechnica1.cooperationbetweenISOandCEN(ViennaAgreement),AIistofa1.1.partsintheISO4259seriescanbefoundontheISOwebsite.由珏拼占6“典fiftsHHiesthismRMeHftRFSh。UWwWj拓剧e=油nationa1.standardsbody.AIntroductionmeansanddataimp1.icitexpectationexpectationscustomers'11t-for-use'.Tmstworthyentities.DatatrustworthinessThisdocumentdescribesmanufacturingSectorspecificthestatistica1.Contro1.monitoringse1.ecteddemnnstratingthatinterpretedthateachrequirementIestassessnientobtainedfromqua1.ityconformancetoin-statistica1.-contro1.testmethodconsistencyapp1.icationstandardizationOnihowAddressingthein-statistica1.-contro1.necessitynecessaryInthecurrentg1.oba1.businessenvironment,measurementdatatrustworthiness*isakeybusinessdrivertheanqua1.itymeetsfromandisandregu1.atorydatacanon1.ybeproducedbymeasurementsystemsthataredemonstratedtobestab1.eandarcundercommoncausevariationon1.y.arewide1.yusedbythetheapp1.icationsofforpurposeofchartsandfromthosetheins1.atistica1.contro1.statusofa1.aboratoryintheexecutionofastandardized1.estmethodtoproducetrustworthydata.InISO42592p)rtheIaboratoryzSforresu1.tisofproducttestmethodthatisSpedf1.cation.beintermsofprecisionandbias,tobosubstantiatedbyin-housestatistica1.qua1.itycontro1.(SQC)chartsorotherequiva1.entstatistica1.techniques.Whi1.ein-housetechniquesareusedbymany1.aboratoriesfortoensurequa1.ityinassurancerofISO4259-29.toestab1.ishaforementionedisthemotivationofthisdocument,whichisbasedonASTMD6299.Petro1.eumandre1.atedproductsPrecisionofmeasurementmethodsandresu1.ts一ft琐statistica1.contro1.chartstova1.idate,in-statistica1.-controstatusfortheexecutionofastandardtestmethodinasing1.e1.aboratory1 ScopeThisdocumentspecifiestheprocessandmethodo1.ogyfortheconstruction,operation,andmaintenanceefatistica1.-contro1.andchartsCfejto1.tsitGindIaborattfrytJtttetaeonuJta1.idardtestRtetiiadisin-Itspecifiescontro1.chartsthataremostappropriateforISO/TC28testmethodswherethedominant曲嘛OnS魁丽rvar曲幅衲海帧枫悌曲跑m骷那re：n懦啷UaIoPC出即蜘陶油脚加2困J1.andeithertheexponentia1.1.yweightedmovingaverage(EWMA)orzone-basedrunru1.essimi1.artoWesternE1.ectric(WE)runru1.es(3jassensitivityenhancementstrategytosupportthe!-chart.强ingp(tom网inp1.e三M用嘛VqrO祖beA而祖;俄丽而聊捌Qctsfrommannerthatpreservesthehomogeneityofpropertiesofinterestbetweencontro1.samp1.es.Ifthetestmethodpermits,acertifiedreferencemateria1.(CRM)samp1.eisusedasacontro1.samp1.eprovidedthe(也E8ft物资柒降而演M相也然I三说1.也殳倜蛇dsAWfapurecompound；ifthisisThisdocumentisapp1.icab1.etopropertiesofinterestthatare(knowntobe)stab1.eovertime,andfor8¾%bes穿讲股吊yjF隔球HEiW由多咫卬血1网油败船8dasMmB0t旗蝌HR&W瞅IhS刚厥P<dforsituationswhereHieassumptioncannotbeva1.idated.2 NormativereferencesThefo1.1.owingdocumentsarereferredtointhetextinsuchawaythatsomeoftheircontentsupportFetpiiracwenithdofdtostahJraeMtfIWfkenihtt1.*ferfennwqih*ie<toionamcrtMiint孙8例ies.undatedfW½曲4幻丽必M丽柿涧如切网仙酮-fPMiP6fasurementmethodsandresu1.ts3 Terms,definitions,symbo1.sandabbreviatedtermsForthepurposesofthisdocument,thetermsanddefinitionsgiveninISO4259-1andthefo1.1.owingapp1.y.ISOandIECmaintaintermino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses：ISOOn1.inebrowsingp1.atform:avai1.ab1.eavMtps/WWwriSeFgebpIECE1.ectropedia:avai1.ab1.eathttps:/www.e1.ectropedia.org/3.1 Specifictermsanddefinitions3.1.1commoncause3.1.21 toentry：SeeFmf¾forI1.1.ustration.commoncausevariationaspectsintentiona1.1.ymethodcannotberigid1.ycontro1.1.edaspartofthenorma1.andcorrectexecutionofa1.1.-503.1.3In-Statistica1.-Contro1.3.1.22siteprecisionconditions3.1.23 specimenstakenatrandomfromthesamemateria1.overthenorma1.dai1.yoperatingenve1.opequa1.itycontro1.samp1.etoPropertynorma1.1.ybetweenthespecimens,preparedinamannerthatpreservesthehomogeneity3.2 Symbo1.sandabbreviatedtermsARVassignedreferenceva1.ueImnTheConceptspannedi1.1.ustratedTab1.each1.evedcontro1.chartaveragesarereferredtoastheworkingrangeassociatedwithfactorsthatcontributetocommoncausevariation(3.1.2)Notevariationamongstresu1.tsco1.1.ectedundersiteprecisionconditions(3A)fromrepeatedexecutionofatestmethodonthesametestmateria1.attibutab1.etoknown,unknown,orunknowab1.efactorsthatareofthetestnotorsituationwhereinthetestresu1.tsproducedbytheuseroncontro1.samp1.esarereasonab1.yconsistentwithexpectationovertimewithcommonCaUSevariationscatteredaroundastab1.eexpectedcentreconditionsunderwhichsing1.etestresu1.tsareobtainedintimeinterva1.s,separatedbyat1.east8h,bythetestingpopu1.ationinasing1.e1.aboratoryexecutingtheSamCtestmethodusingthesameapparatusontestQCsamp1.especimentakenfromastab1.eandhomogeneousmateria1.withcompositionandpropertiessimi1.arpropertiesoofsamp1.eofinteresttestedbytest1.aboratory,storedinterestovertime,andavai1.ab1.einsufficientquantityforrepeated1.ong-termtestingADAndcrsonDar1.ingfknownSSSTab1.e1Statistica1.1.ypoo1.edstandarddeviationconceptSdfM/?knownMateria1.Property(unit)knownWorkingrangesummergaso1.inevapourpressure(kpa)0556049.85toS0,680.62wintergaso1.inevapourpressure(kpa)0后385104,67to105,910,934Statistica1.contro1.intheexecutionofastandardtestmethodbya1.aboratory4.1Genera1.Theexecutionofastandardtestmethodbya1.aboratoryisinthisdocumentconsideredastheexecutionhiivn3eriesunbownJntcr<oaoDiiukunkp<ucuiiarh1.assnhertiJtsuttjttoptvxrtW2Jutod0mebyhorizonsuchthateveryoutcomeoftheprocessisaffected.Thesecausesarereferredtoascommoncauses.Theeffectonthefina1.processoutcomeduetocommoncausesarereferredtoascommoncausevariation.Commoncausesforvariationcanbegroupedinto5categories(environment,operator,equipmentprocedureandreagentmateria1.)usingatechniqueknownasafishbonediagram.Duetocommoncause1.ong-timehorizonsamcsamp1.cin,mu1.tip1.etimes46550.1,439,45,3.1.aboratory=>aco1.1.ectionofintcrconncctcdworkprocessesspecifictoatestmethoddifferencesbetweenoutputsduetoCOmHOncausesFigure1FishbonediagramrepresentationofcommoncausevariationintheexecutionofatestmethodThecomp1.eteprocessassociatedwiththeexecutionofthespecifictestmethodissaidtobe'inscatteredaroundastab1.ecentreduetocommoncauseson1.y.determine'in-statistica1.-contro,Samp1.eniu1.ti-Stepandintegratedworkprocessinvo1.vinguseof舸(jghoutF傣百ij4Migq然U1.R第'statistica1.'wi1.1.beomittedandthetermreferredtoas,contro1.charts,1S04259-4:2021(E)4.2 Contro1.chartdescription4.2.1 Genera1.Contro1.chartsappropriateformostpetro1.eumindustrytestmethodsChatyie1.dnumericresu1.tsaretheindividua1.(I)chartandthemovingrangeof2(MRz)chart.NOTE1The1.-chartisa1.soknownastheX-chartortheShewhartchartr.NOTE2Forsimp1.icity,theMRzchartisreferredtoasthemovingrange(MR)chartthroughouttherestofthisdocument.4.2.2 I-andMR-chartsThe1.-chartisagraphicdisp1.ayofindividua1.QCsamp1.etestresu1.ts(X)co1.1.ectedundersiteprecisionMi函瓯(p1.ottedifuohww1.ni?OrtknitSver1.aidhevdthrvfe11trdtb<w;Iriwtrniuiveruppd114r11bn)tro1.1.imits(1.C1._X,UC1.,X).Theprimarypurposeofthe1.-chartistomonitorprocesscentrestabi1.ityovertime.Ntt1.sitepW-W1.iW三nsinteWisatiqf1.aAWtheh(f1.11tyref11tecff1.rttori!tsbisHatidrf(<FrtprafffiHityconditions(seeISO4259-1)doesnotcontributetowardsthisobjective,asthevariationduetocommoncausesofinterestisnotcontainedinrep1.icateresu1.tsco1.Icctcdunderrepeatabi1.ityconditions.E丽art,M叫，融fi豳制新ygi拗济喻侪林窃R1.陷班itMf1.展陈由即即Woa桃Nff1.eidua康tftWittheaction,hereinreferredtoasMR-chartuppercontro1.1.imit(UC1.,MR).TheprimarypurposeoftheMR-chartistomonitorcommoncausevariationstabi1.itybetweensuccessiveQCsamp1.eresu1.tsovertime.aW¼袱Xbf1.MWn1.as'副毒R蟒BSOfrdfi?ft'thedeft掬Sprocessthatisin-statistica1.-contro1.,usingtheNorma1.distibution(1.-chart)andWdistribution(MR-chart)asthereferencestatistica1.mode1.s.Hence,these1.imitsrepresenttheexpectation1.imitsfortheprocessoutcomeifitisin-statistica1.-contro1.4.2.3 1.-chartsensitivityenhancementstrategyAsadirectconsequenceofsettingtheaction1.imitsforthei-chartbasedona1.owprobabi1.ityofchGe®danDifthtq)roccssCCntttfWtiSJtdiStiUaetone【蝇Xti»sStfyiJP1.bmigahQnwtnSittxthddi1.iot1.McnMqnaHenhancementstrategiestoovercomethisshortcoming.Thisdocumentrequiresuseofoneofthefo1.1.owingstrategiesinconjunctionwiththe1.-chart:a) Strategjr1:Zone-basedrunru1.es.Act4M÷irequiredifanyofthefo1.1.owingrunru1.econditionsispresentFordefinitionsofzonessee4.3.2： twooutofthreeconsecutiveindividua1.resu1.tsinZoneAononesideofthecentre1.ine; fouroutoffiveconsecutiveindividua1.resu1.tsbvyondZoneCononesideofthecentre1.ine; nineconsecutiveindividua1.resu1.tsonthesamesideofthecentre1.ine(aboveorbe1.ow);onb) Weightedmovingaverage(EWMA).ActionisrequiredifeitheroneoftheanyexceedanceoftheEWMAaction1.imits;nineconsecutiveindividua1.resu1.tsonthesamesideofthecentre1.ine(aboveorbe1.ow).4OneEWMAwcigh1.ing4time-wcightedmovingaverage,Ca1.cu1.atedexponentia1.1.yx1.ataPointSOfUPthiSweightrrentdetectionpowerasStrategy1.j.4.2.4 In-statistica1.-contro1.conditionscontro1.ifa1.1.ofthefo1.1.owingconditionsaremet：b)1.essthanfiveoutof12successiveMRresu1.tsexceedMR-chartuppercontro1.1.imit,and4.3 Contro1.chartworkprocess4.3.1 Genera1.contro1.atwo-stagemu1.ti-stepworkprocessinvo1.vinguseofcontro1.chartsandQCmateria1.isspecified.ChartS,MR-Chartaetion1.imitsrepresentbytheboundarieswithinWhichthethecurrent1.imitsfuturerespectivearedep1.oyedforStage2ifa1.1.in-statistic3-contro1.conditions(see4.2.4)aremet.estab1.ishedactionCornPUtaHonChoSCnenhancementstrategyHmitsStagefromUnderMaintenance*,theStaHStiC,practice,theroot-mean-squaretechniqueisusedtocomputethesamp1.estandarddeviation4.3.2 Stage1ofcontro1.chartworkprocessChartschrono1.ogica1.1.yobtaineddatacnhancementStratcgydistribu1.ionasthcareferencemode1.Figurcmateha1.1) propertiesmu1.tip1.eQCSamp1.esnomia1.1.ytestedandthehomogeneousmateria1.withcompositionand3) visua1.1.ydiscernib1.etranscriptionchrono1.ogica1.1.yCorrectordiscardobvioustranscriptionerrors,foranyThetheisaofeachdatumreducedwithageusingTheratetornos1.decayiscontro1.1.edby.Itisre-ca1.cu1.atedwiththearriva1.ofeachnewdatumandisjudgedagainstitsownaction1.imits(hereinreferredtoastheEWM-action1.imits).nEWMWith=0,4hassimi1.arUseofStrategy2isrecommendedduetotheeaseOfimp1.ementationand1.owerexpectedfa1.sea1.armratethanStrategy1.Thecomp1.eteprocessassociatedwiththeexecutionofatestmethodisdeemedtobein-statistica1.-a)a1.1.individua1.contro1.samp1.eresu1.tsarewithinthe1-chartaction1.imits,C)noactionrequiredforthesensitivityenhancementchosen(StrategyIor2).Todetermineifthecomp1.eteprocessassociatedwiththeexecutionofatestmethodisin-statistica1.-Stage1comprisesvisua1.andstatistica1.assessmentofinitia1.testresu1.tsforanewbatchofQCmateria1.p1.ottedinachrono1.ogica1.order(knownasarunchart).Thisisfo1.1.owedbyConstiuctionoftheI-chartandTheusingtheseresu1.tsover1.ayingthemeanandactionandontotheresu1.tsandMRforthisQCmateria1.areexpectedto1.ie,ontheassumptionthattheprocessisin-statistica1.-contro1.andtheQCmateria1.remainsunchanged.Thecontro1.charts(IandMR)constructedinStage1Stage2comprisesoftwomodes,operationandmaintenance.UnderOperation*,futuretestresu1.ts(fortheQCmateria1.testedinStage1.)astheyarriveinchrono1.ogica1.orderarecomparedagainstthestatisticsusedthe1.imitsandofthecontro1.chartactionin1.Stage1arere-assessedperiodica1.1.yusingnew1.yaccruedin-statistica1.-contro)resu1.tsandupdatedasappropriate.Forthiss.TheprimaryobjectiveofStage1istoestab1.ishinitia1.meansandaction1.imits