EN ISO 6974-3:2001

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns (ISO 6974-3:2000)

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 Unsicherhei1 durch Gaschromatographie - Teil 3: Bestimmung von Wasserstoff, Helium, Sauerstoff, Stickstoff, Kohlenstoffdioxid und Kohlenwasserstoffen bis zu C8 mit zwei gepackten Säulen (ISO 6974-3:2000)

Dieser Teil von ISO 6974 beschreibt ein gaschromatographisches Verfahren zur quantitativen Bestimmung des Gehaltes an Helium, Wasserstoff, Sauerstoff, Stickstoff, Kohlenstoffdioxid und C1- bis C8-Kohlenwasserstoffen  in Erdgasproben mit zwei gepackten Säulen. Dieses Verfahren kann zur Bestimmung in On-line-Prozessen und im Laboratorium eingesetzt werden. Es ist anwendbar zur Analyse von Gasen, deren Bestandteile im Bereich der in Tabelle 1 angegebenen Molfraktionen liegen und die kein Kohlenwasserstoffkondensat enthalten. Diese Bereiche stellen nicht die Detektionsgrenzen dar, sondern die Grenzen, innerhalb deren die angegebene Präzision gilt. Auch wenn eine oder mehrere Komponenten in einer Probe nicht nachgewiesen werden, kann das Verfahren trotzdem angewandt werden.
Dieser Teil von ISO 6974 kann nur in Verbindung mit den Teilen 1 und 2 von ISO 6974 angewandt werden.
Tabelle 1 - Anwendungsbereiche
Komponente   Molfraktionsbereich
%
Wasserstoff   0,01 bis 0,5
Helium   0,01 bis 0,5
Sauerstoff   0,1 bis 0,5
Stickstoff   0,1 bis 40
Kohlenstoffdioxid   0,1 bis 30
Methan   50 bis 100
Ethan   0,1 bis 15
Propan   0,001 bis 5
Butane   0,0001 bis 2
Pentane   0,0001 bis 1
Hexane bis Octane   0,0001 bis 0,5

Gaz naturel - Détermination de la composition avec une incertitude définie par chromatographie en phase gazeuse - Partie 3: Détermination de l'hydrogène, de l'hélium, de l'oxygène, de l'azote, du dioxide de carbone et des hydrocarbures jusqu'à C8 à l'aide de deux colonnes remplies (ISO 6974-3:2000)

L'ISO 6974-3:2000 décrit une méthode par chromatographie en phase gazeuse pour la détermination quantitative de la teneur en hélium, en hydrogène, en oxygène, en azote, en dioxyde de carbone et en hydrocarbures de C1 à C8 d'échantillons de gaz naturel, à l'aide de deux colonnes remplies. Cette méthode est applicable aux analyses réalisées dans des processus en continu ou en laboratoire.
L'ISO 6974-3:2000 n'est applicable que conjointement avec l'ISO 6974-1 et l'ISO 6974-2.
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Zemeljski plin - Določevanje sestave z določeno negotovostjo s plinsko kromatografijo - 3. del: Določevanje vodika, helija, kisika, dušika, ogljikovega dioksida in ogljikovodikov do C8 z dvema polnjenima kolonama (ISO 6974-3:2000)

General Information

• Status: Withdrawn
• Publication Date: 21-Aug-2001
• Withdrawal Date: 27-Nov-2018
• ICS: 75.060 - Natural gas
• Technical Committee: CEN/TC 238 - Test gases, test pressures and categories of appliances
• Drafting Committee: CEN/SS N21 - Gaseous fuels and combustible gas
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 28-Nov-2018
• Ref Project: SIST EN ISO 6974-3:2001 - Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns (ISO 6974-3:2000)

Relations

• Replaced By: EN ISO 6974-3:2018 - Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 3: Precision and bias (ISO 6974-3:2018)
• Effective Date: 05-Dec-2018

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.LQVNRErdgas - Bestimmung der Zusammensetzung mit definierter Unsicherhei1 durch Gaschromatographie - Teil 3: Bestimmung von Wasserstoff, Helium, Sauerstoff, Stickstoff, Kohlenstoffdioxid und Kohlenwasserstoffen bis zu C8 mit zwei gepackten Säulen (ISO 6974-3:2000)Gaz naturel - Détermination de la composition avec une incertitude définie par chromatographie en phase gazeuse - Partie 3: Détermination de l'hydrogene, de l'hélium, de l'oxygene, de l'azote, du dioxide de carbone et des hydrocarbures jusqu'a C8 a l'aide de deux colonnes remplies (ISO 6974-3:2000)Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns (ISO 6974-3:2000)75.060Zemeljski plinNatural gasICS:Ta slovenski standard je istoveten z:EN ISO 6974-3:2001SIST EN ISO 6974-3:2001en01-december-2001SIST EN ISO 6974-3:2001SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 6974-3August 2001ICS 75.060English versionNatural gas - Determination of composition with defineduncertainty by gas chromatography - Part 3: Determination ofhydrogen, helium, oxygen, nitrogen, carbon dioxide andhydrocarbons up to C8 using two packed columns (ISO 6974-3:2000)Gaz naturel - Détermination de la composition avec uneincertitude définie par chromatographie en phase gazeuse- Partie 3: Détermination de l'hydrogène, de l'hélium, del'oxygène, de l'azote, du dioxide de carbone et deshydrocarbures jusqu'à C8 à l'aide de deux colonnesremplies (ISO 6974-3:2000)Erdgas - Bestimmung der Zusammensetzung mitdefinierter Unsicherhei1 durch Gaschromatographie - Teil3: Bestimmung von Wasserstoff, Helium, Sauerstoff,Stickstoff, Kohlenstoffdioxid und Kohlenwasserstoffen biszu C8 mit zwei gepackten Säulen (ISO 6974-3:2000)This European Standard was approved by CEN on 22 June 2001.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, 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© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 6974-3:2001 ESIST EN ISO 6974-3:2001

2002-03-13ForewordThe 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 CMC.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 February 2002, and conflicting nationalstandards shall be withdrawn at the latest by February 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,Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Endorsement noticeThe text of the International Standard ISO 6974-3:2000 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 6974-3:2001

ReferencenumberISO6974-3:2000(E)©ISO2000INTERNATIONALSTANDARDISO6974-3Firstedition2000-04-01Naturalgas—Determinationofcompositionwithdefineduncertaintybygaschromatography—Part3:Determinationofhydrogen,helium,oxygen,nitrogen,carbondioxideandhydrocarbonsuptoC8usingtwopackedcolumnsGaznaturel—Déterminationdelacompositionavecuneincertitudedéfinieparchromatographieenphasegazeuse—Partie3:Déterminationdel'hydrogène,del'hélium,del'oxygène,del'azote,dudioxydedecarboneetdeshydrocarburesjusqu'àC8àl'aidededeuxcolonnesrempliesSIST EN ISO 6974-3:2001

ISO6974-3:2000(E)PDFdisclaimerThisPDFfilemaycontainembeddedtypefaces.InaccordancewithAdobe'slicensingpolicy,thisfilemaybeprintedorviewedbutshallnotbeeditedunlessthetypefaceswhichareembeddedarelicensedtoandinstalledonthecomputerperformingtheediting.Indownloadingthisfile,partiesacceptthereintheresponsibilityofnotinfringingAdobe'slicensingpolicy.TheISOCentralSecretariatacceptsnoliabilityinthisarea.AdobeisatrademarkofAdobeSystemsIncorporated.DetailsofthesoftwareproductsusedtocreatethisPDFfilecanbefoundintheGeneralInforelativetothefile;thePDF-creationparameterswereoptimizedforprinting.EverycarehasbeentakentoensurethatthefileissuitableforusebyISOmemberbodies.Intheunlikelyeventthataproblemrelatingtoitisfound,pleaseinformtheCentralSecretariatattheaddressgivenbelow.©ISO2000Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromeitherISOattheaddressbeloworISO'smemberbodyinthecountryoftherequester.ISOcopyrightofficeCasepostal[e-mail]©ISO2000–AllrightsreservedSIST EN ISO 6974-3:2001

ISO6974-3:2000(E)©ISO2000–AllrightsreservediiiContentsPageForeword.ivIntroduction.v1Scope.12Normativereferences.13Principle.24Materials.25Apparatus.36Procedure.57Expressionofresults.88Testreport.9AnnexA(informative)Single-ovengas-chromatographicsystemconsistingoftwocolumns.10AnnexB(informative)Typicalprecisionvalues.13SIST EN ISO 6974-3:2001

ISO6974-3:2000(E)iv©ISO2000–AllrightsreservedForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3.DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting.PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote.AttentionisdrawntothepossibilitythatsomeoftheelementsofthispartofISO6974maybethesubjectofpatentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.InternationalStandardISO6974-3waspreparedbyTechnicalCommitteeISO/TC193,Naturalgas,SubcommitteeSC1,Analysisofnaturalgas.ThispartaswellastheotherfivepartsofISO6974cancelandreplaceISO6974:1984whichspecifiedonlyonemethod.ISO6974consistsofthefollowingparts,underthegeneraltitleNaturalgas—Determinationofcompositionwithdefineduncertaintybygaschromatography:—Part1:Guidelinesfortailoredanalysis—Part2:Measuring-systemcharacteristicsandstatisticsfordatatreatment—Part3:Determinationofhydrogen,helium,oxygen,nitrogen,carbondioxideandhydrocarbonsuptoC8usingtwopackedcolumns—Part4:Determinationofnitrogen,carbondioxideandC1toC5andC6+hydrocarbonsforalaboratoryandon-linemeasuringsystemusingtwocolumns—Part5:Determinationofnitrogen,carbondioxideandC1toC5andC6+hydrocarbonsforalaboratoryandon-lineprocessapplicationusingthreecolumns—Part6:Determinationofhydrogen,helium,oxygen,nitrogen,carbondioxideandhydrocarbonsuptoC8usingthreecapillarycolumnsAnnexesAandBofthispartofISO6974areforinformationonly.SIST EN ISO 6974-3:2001

ISO6974-3:2000(E)©ISO2000–AllrightsreservedvIntroductionThispartofISO6974describesapreciseandaccuratemethodfortheanalysisofnaturalgas,whichpermitsthedeterminationofthecompositionofnaturalgas.Thecompositionaldataobtainedareusedforthecalculationofcalorificvalue,relativedensityandtheWobbeindex.Thismethodrequirestheuseoftwocolumnswhichareputintooneortwogaschromatographs.Theconstituentsoftheeluentofthefirstcolumnaredetectedbyathermalconductivitydetector(TCD).TheconstituentsoftheeluentofthesecondcolumnaredetectedbyaTCDandflameionization(FID)inseries.IfthetwocolumnsareputintoonechromatographthegaschromatographicconditionsaredescribedininformativeannexA.ThispartofISO6974providesoneofthemethodsthatmaybeusedfordeterminingthecompositionofnaturalgasinaccordancewithparts1and2ofISO6974.SIST EN ISO 6974-3:2001

INTERNATIONALSTANDARDISO6974-3:2000(E)©ISO2000–Allrightsreserved1Naturalgas—Determinationofcompositionwithdefineduncertaintybygaschromatography—Part3:Determinationofhydrogen,helium,oxygen,nitrogen,carbondioxideandhydrocarbonsuptoC8usingtwopackedcolumns1ScopeThispartofISO6974describesagaschromatographicmethodforthequantitativedeterminationofthecontentofhelium,hydrogen,oxygen,nitrogen,carbondioxideandC1toC8hydrocarbonsinnaturalgassamplesusingtwopackedcolumns.Thismethodisapplicabletodeterminationsmadeinon-lineprocessesorinthelaboratory.ItisapplicabletotheanalysisofgasescontainingconstituentswithinthemolefractionrangesgiveninTable1andwhichdonotcontainanyhydrocarboncondensate.Theserangesdonotrepresentthelimitsofdetection,butthelimitswithinwhichthestatedprecisionofthemethodapplies.Althoughoneormorecomponentsinasamplemaynotbedetectedpresent,themethodcanstillbeapplicable.ThispartofISO6974isonlyapplicableinconjunctionwithparts1and2ofISO6974.Table1—ApplicationrangesComponentMolefractionrange%Helium0,01to0,5Hydrogen0,01to0,5Oxygen0,1to0,5Nitrogen0,1to40Carbondioxide0,1to30Methane50to100Ethane0,1to15Propane0,001to5Butanes0,0001to2Pentanes0,0001to1Hexanestooctanes0,0001to0,52NormativereferencesThefollowingnormativedocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthispartofISO6974.Fordatedreferences,subsequentamendmentsto,orrevisionsof,anyofthesepublicationsdonotapply.However,partiestoagreementsbasedonthispartofISO6974areencouragedtoinvestigatethepossibilityofapplyingthemostrecenteditionsofthenormativedocumentsindicatedbelow.Forundatedreferences,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofISOandIECmaintainregistersofcurrentlyvalidInternationalStandards.SIST EN ISO 6974-3:2001

ISO6974-3:2000(E)2©ISO2000–AllrightsreservedISO6974-1:2000,Naturalgas—Determinationofcompositionwithdefineduncertaintybygaschromatography—Part1:Guidelinesfortailoredanalysis.ISO6974-2:—1),Naturalgas—Determinationofcompositionwithdefineduncertaintybygaschromatography—Part2:Measuring-systemcharacteristicsandstatisticsfordatatreatment.ISO7504,Gasanalysis—Vocabulary.3PrincipleDeterminationofnitrogen,carbondioxideandhydrocarbonsfromC1toC8bygaschromatographyusingtwochromatographiccolumns.Amolecularsieve13Xcolumncoupledwithathermalconductivitydetector(TCD)isusedfortheseparationanddetectionofhydrogen,helium,oxygenandnitrogen,andaPorapakRcolumncoupledwithaTCDandaflameionizationdetector(FID)inseriesisusedfortheseparationanddetectionofnitrogen,carbondioxideandhydrocarbonsfromC1toC8.Thetwoanalysesarecarriedoutindependentlyandtheresultsarecombined.Ifoxygenisseentobepresentatamolefractiongreaterthan0,02%whenmeasuredusingthemolecularsievecolumn,thenthenitrogenvalueshallbetakenfromthemolecularsieveanalysis.Ifthemolefractionofoxygenislessthan0,02%andassumingthathydrogenisabsentfromthegassample,thenitrogenvaluecanbetakenfromthePorapakRanalysis.QuantitativeresultsareachievedbydeterminingtheresponseoftheTCDdetectorwithreference-gasmixturesandusingrelativerespo
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