EN ISO 6143 2025.docx

ENISO6143June2025EUROPEANSTANDARDNORMEEUROPEENNEEuropaischenormICS71.040.40SupersedesENISO6143:2006EnglishVersionGasanalysis-ComparisonmethodsfordeterminingandcheckingthecompositionofcalibrationgasmixturesISO6143:2025Analysedesgaz-MethodesdeComparaisonpourladeterminationetlaverificationdelacompositiondesmelangesdegazd,etalonnage(ISO6143:2025)Gasanalyse-VergleichsverfahrenzurBestimmungundUberpriifungderZusammensetzungvonKalibriergasgemischen(ISO6143:2025)ThisEuropeanStandardwasapprovedbyCENon3June2025.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEEUROPEENDENORMALISATIONEuropaischeskomiteefurnormungCEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels©2025CENAllrightsofexploitationinanyformandbyanymeansreservedRef.No.ENISO6143:2025EworldwideforCENnationalMembers.EuropeanforewordThisdocument(ENISO6143:2025)hasbeenpreparedbyTechnicalCommitteeISO/TC158"Analysisofgases"incollaborationwithTechnicalCommitteeCEN/TC238"Testgases,testpressures,appliancecategoriesandgasappliancetypes"thesecretariatofwhichisheldbyAFNOR.ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyDecember2025,andconflictingnationalstandardsshallbewithdrawnatthelatestbyDecember2025.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CENshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ThisdocumentsupersedesENISO6143:2006.Anyfeedbackandquestionsonthisdocumentshouldbedirectedtotheusers'nationalstandardsbody/nationalcommittee.AcompletelistingofthesebodiescanbefoundontheCENwebsite.AccordingtotheCEN-CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandtheUnitedKingdom.EndorsementnoticeThetextofISO6143:2025hasbeenapprovedbyCENasENISO6143:2025withoutanymodification.ContentsPageForewordivIntroductionvi1 Scope12 Normativereferences13 Termsanddefinitions14 Symbolsandabbreviatedterms35 Principle46 Generalprocedure56.1 Determinationoftheanalysisfunction56.2 Validationoftheanalysisfunction96.2.1 Purpose96.2.2 Validationoftheresponsemodel96.2.3 Examiningconformancewithuncertaintyrequirements106.2.4 Driftcontrolofthemeasuringsystem106.2.5 Validationofapplicabilitytomismatchingcalibrationgases116.3 Determinationofthecompositionofacalibrationgasmixture126.4 Supplementaryinstructions136.4.1 Exceptionaluncertainties136.4.2 Correlationbetweenreferencegasmixtures137 Specialprocedures147.1 Checkingofapre-assignedcomposition147.2 Comparisonofseveralcalibrationgasmixtures148 Reportofresults15Annex A (informative)Proceduresfordataevaluation16Annex B (informative)Examples22Annex C (informative)Computerimplementationofrecommendedmethods31Annex D (informativeAdditionalinformationondataevaluation33Bibliography40ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmentabinliaisonwithIS0,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticular,thedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentshouldbenoted.Thisdocumentwasdraftedinaccordancewiththeeditorialr