EN ISO 6974-2:2002

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 2: Measuring-system characteristics and statistics for processing of data (ISO 6974-2:2001)

Migrated from Progress Sheet (TC Comment) (2000-07-10): WIs 020-025 = result of the splitting of WI 011 (CC/991102 at the request of ++ R. R{migy and A. Pirlet)

Erdgas - Bestimmung der Zusammensetzung mit definierter Unsicherheit durch Gaschromatographie - Teil 2: Messsystem charakteristiken und Statistiken für die Datenverarbeitung (ISO 6974-2:2001)

Dieser Teil von ISO 6974 beschreibt die Datenverarbeitung für die maßgeschneiderte Erdgasanalyse. Er beinhaltet die Bestimmung der Charakteristiken des Messsystems und den statistischen Ansatz zur Datenbearbeitung und Fehlerbetrachtung mit dem Ziel, die Unsicherheiten der Molenbrüche der gemessenen Komponenten zu definieren.
Dieser Teil von ISO 6974 ist nur in Zusammenhang mit Teil 1 von ISO 6974 anwendbar.

Gaz naturel - Détermination de la composition avec une incertitude définie par chromatographie en phase gazeuse - Partie 2: Caractéristiques du système de mesure et statistiques pour le traitement des données (ISO 6974-2:2001)

L'ISO 6974-2:2001 décrit le traitement des données pour l'analyse sur mesure du gaz naturel. Elle comprend la détermination des caractéristiques du système de mesurage et de l'approche statistique pour le traitement des données et le calcul des erreurs, avec pour objectif la définition de l'incertitude des fractions molaires du constituant mesuré.
L'ISO 6974-2:2001 n'est applicable que conjointement avec l'ISO 6974-1.

Zemeljski plin - Določevanje sestave z določeno negotovostjo s plinsko kromatografijo - 2. del: Značilnosti merilnega sistema in statistike za obdelavo podatkov (ISO 6974-2:2001)

General Information

• Status: Withdrawn
• Publication Date: 19-Mar-2002
• Withdrawal Date: 14-May-2012
• ICS: 75.060 - Natural gas
• Technical Committee: CEN/SS N21 - Gaseous fuels and combustible gas
• Drafting Committee: CEN/SS N21 - Gaseous fuels and combustible gas
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 15-May-2012
• Completion Date: 15-May-2012
• Ref Project: SIST EN ISO 6974-2:2002 - Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 2: Measuring-system characteristics and statistics for processing of data (ISO 6974-2:2001)

Relations

• Replaced By: EN ISO 6974-2:2012 - Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 2: Uncertainty calculations (ISO 6974-2:2012)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.LQVNRErdgas - Bestimmung der Zusammensetzung mit definierter Unsicherheit durch Gaschromatographie - Teil 2: Messsystem charakteristiken und Statistiken für die Datenverarbeitung (ISO 6974-2:2001)Gaz naturel - Détermination de la composition avec une incertitude définie par chromatographie en phase gazeuse - Partie 2: Caractéristiques du systeme de mesure et statistiques pour le traitement des données (ISO 6974-2:2001)Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 2: Measuring-system characteristics and statistics for processing of data (ISO 6974-2:2001)75.060Zemeljski plinNatural gasICS:Ta slovenski standard je istoveten z:EN ISO 6974-2:2002SIST EN ISO 6974-2:2002en01-september-2002SIST EN ISO 6974-2:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 6974-2March 2002ICS 75.060English versionNatural gas - Determination of composition with defineduncertainty by gas chromatography - Part 2: Measuring-systemcharacteristics and statistics for processing of data (ISO 6974-2:2001)Gaz naturel - Détermination de la composition avec uneincertitude définie par chromatographie en phase gazeuse -Partie 2: Caractéristiques du système de mesure etstatistiques pour le traitement des données (ISO 6974-2:2001)Erdgas - Bestimmung der Zusammensetzung mitdefinierter Unsicherheit durch Gaschromatographie - Teil 2:Messsystem charakteristiken und Statistiken für dieDatenverarbeitung (ISO 6974-2:2001)This European Standard was approved by CEN on 5 January 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 6974-2:2002 ESIST EN ISO 6974-2:2002

2002-04-24ForewordThe text of the International Standard from Technical Committee ISO/TC 193 "Natural gas" ofthe International Organization for Standardization (ISO) has been taken over as a EuropeanStandard by the Technical Board of CEN.This European Standard shall be given the status of a national standard, either by publication ofan identical text or by endorsement, at the latest by September 2002, and conflicting nationalstandards shall be withdrawn at the latest by September 2002.According to the CEN/CENELEC Internal Regulations, the national standards organizations ofthe following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg,Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Endorsement noticeThe text of the International Standard ISO 6974-2:2001 has been approved by CEN as aEuropean Standard without any modifications.NOTE
Normative references to International Standards are listed in annex ZA (normative).SIST EN ISO 6974-2:2002

ReferencenumberISO6974-2:2001(E)©ISO2001INTERNATIONALSTANDARDISO6974-2Firstedition2001-02-01Naturalgas—Determinationofcompositionwithdefineduncertaintybygaschromatography—Part2:Measuring-systemcharacteristicsandstatisticsforprocessingofdataGaznaturel—Déterminationdelacompositionavecuneincertitudedéfinieparchromatographieenphasegazeuse—Partie2:CaractéristiquesdusystèmedemesureetstatistiquespourletraitementdesdonnéesSIST EN ISO 6974-2:2002

ISO6974-2:2001(E)PDFdisclaimerThisPDFfilemaycontainembeddedtypefaces.InaccordancewithAdobe'slicensingpolicy,thisfilemaybeprintedorviewedbutshallnotbeeditedunlessthetypefaceswhichareembeddedarelicensedtoandinstalledonthecomputerperformingtheediting.Indownloadingthisfile,partiesacceptthereintheresponsibilityofnotinfringingAdobe'slicensingpolicy.TheISOCentralSecretariatacceptsnoliabilityinthisarea.AdobeisatrademarkofAdobeSystemsIncorporated.DetailsofthesoftwareproductsusedtocreatethisPDFfilecanbefoundintheGeneralInforelativetothefile;thePDF-creationparameterswereoptimizedforprinting.EverycarehasbeentakentoensurethatthefileissuitableforusebyISOmemberbodies.Intheunlikelyeventthataproblemrelatingtoitisfound,pleaseinformtheCentralSecretariatattheaddressgivenbelow.©ISO2001Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromeitherISOattheaddressbeloworISO'smemberbodyinthecountryoftherequester.ISOcopyrightofficeCasepostal[e-mail]©ISO2001–AllrightsreservedSIST EN ISO 6974-2:2002

ISO6974-2:2001(E)©ISO2001–AllrightsreservediiiContentsPageForeword.ivIntroduction.v1Scope.12Normativereferences.13Termsanddefinitions.14Symbolsandsubscripts.24.1Symbols.24.2Subscripts.35Procedure.45.1Step1:Determinationoftheoptimalresponsefunctions.45.2Step2:Selectionoftheresponsefunctionstobeusedinpractice.85.3Step3:Routinecalibrationwithaworking-referencegasmixture.105.4Step4:Calculationofnon-normalizedcomponentmolefractions.105.5Step5:Calculationofnon-normalizedcomponentstandarddeviations.105.6Step6:Calculationofnormalizedcomponentmolefractions.125.7Step7:Calculationofnormalizedcomponentstandarddeviations.125.8Step8:Calculationofuncertaintyandrepeatabilityoftheresults.135.9RelationshipbetweenISO6974-2andISO6976.13AnnexA(informative)Criticalvaluesoft.14AnnexB(informative)Example.15AnnexC(informative)Relativeresponsefactors(K).23Bibliography.24SIST EN ISO 6974-2:2002

ISO6974-2:2001(E)iv©ISO2001–AllrightsreservedForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3.DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting.PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote.AttentionisdrawntothepossibilitythatsomeoftheelementsofthispartofISO6974maybethesubjectofpatentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.InternationalStandardISO6974-2waspreparedbyTechnicalCommitteeISO/TC193,Naturalgas,SubcommitteeSC1,Analysisofnaturalgas.ThispartaswellastheotherfivepartsofISO6974cancelandreplaceISO6974:1984whichspecifiedonlyonemethod.ISO6974consistsofthefollowingparts,underthegeneraltitleNaturalgas—Determinationofcompositionwithdefineduncertaintybygaschromatography:—Part1:Guidelinesfortailoredanalysis—Part2:Measuring-systemcharacteristicsandstatisticsforprocessingofdata—Part3:Determinationofhydrogen,helium,oxygen,nitrogen,carbondioxideandhydrocarbonsuptoC8usingtwopackedcolumns—Part4:Determinationofnitrogen,carbondioxideandC1toC5andC6+hydrocarbonsforalaboratoryandon-linemeasuringsystemusingtwocolumns—Part5:Determinationofnitrogen,carbondioxideandC1toC5andC6+hydrocarbonsforalaboratoryandon-lineprocessapplicationusingthreecolumns—Part6:Determinationofhydrogen,helium,oxygen,nitrogen,carbondioxideandhydrocarbonsuptoC8usingthreecapillarycolumnsAnnexesA,BandCofthispartofISO6974areforinformationonly.SIST EN ISO 6974-2:2002

ISO6974-2:2001(E)©ISO2001–AllrightsreservedvIntroductionThispartofISO6974describesthedataprocessingforthe“tailored”analysisofnaturalgas.Thispartistobeusedinconjunctionwithpart1ofISO6974whichgivestheguidelinesfor“tailored”analysis.Anymethodofanalysis,eitheroneofthoseinpart3ofISO6974andsubsequentpartsoranothermethodofchoicecanonlybeappliedinconjunctionwithparts1and2ofISO6974.Thecalculationofthecompositionofthegasusingresponsecurves,aworking-referencegasmixtureandrelativeresponsefactorsaredescribedinpart1ofISO6974,whiletheelaborationoftheseformulaeisdescribedinthispartofISO6974.Theworking-referencegasmixtureandthegassampleareanalysedwiththesameanalyticalsystemunderthesamesetofconditions.Componentsnotmeasuredbythismethodwillinfluencetheaccuracyofthemethodandshouldthereforebeknown.Ifnoworking-referencegasmixtureisusedfortheregularcalibrationoftheanalyticalsystem,anumberofequationsgiveninthispartofISO6974willchange.Suchchangesareindicatedforeachoftheseequations.Oncetheworkingrangesofthecomponentshavebeendefined,anevaluationiscarriedouttodeterminewhethercomponentsaretobeconsideredas:maincomponentsorgroupsofcomponentstobeanalysedusingdirectmeasurement(directlymeasuredcomponents);componentsorgroupsofcomponentstobeanalysedusingindirectmeasurement,asafunctionofadifferent,referencecomponentinthecalibrationgas(indirectlymeasuredcomponents);componentsthatarenotmeasuredandwhosemolefractioncanbeassumedtobeconstant(componentsnotmeasured).Thesumofthemolefractionsofthemaincomponents,theindirectcomponentsandthefixedcomponentsisequalto1.SIST EN ISO 6974-2:2002

INTERNATIONALSTANDARDISO6974-2:2001(E)©ISO2001–Allrightsreserved1Naturalgas—Determinationofcompositionwithdefineduncertaintybygaschromatography—Part2:Measuring-systemcharacteristicsandstatisticsforprocessingofdata1ScopeThispartofISO6974describesthedataprocessingforthetailoredanalysisofnaturalgas.Itincludesthedeterminationofthemeasuringsystemcharacteristicsandthestatisticalapproachtodatahandlinganderrorcalculationwiththeaimofdefiningtheuncertaintyinthemolefractionsofthecomponentmeasured.ThispartofISO6974isonlyapplicableinconjunctionwithpart1ofISO6974.2NormativereferencesThefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthispartofISO6974.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublicationsdonotapply.However,partiestoagreementsbasedonthispartofISO6974areencouragedtoinvestigatethepossibilityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.Forundatedreferences,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintainregistersofcurrentlyvalidInternationalStandards.ISO6974-1,Naturalgas—Determinationofcompositionwithdefineduncertaintybygaschromatography—Part1:Guidelinesfortailoredanalysis.ISO6976,Naturalgas—Calculationofcalorificvalues,density,relativedensityandWobbeindexfromcomposition.3TermsanddefinitionsForthepurposesofthispartofISO6974,thefollowingtermsanddefinitionsapply.3.1
...