1、ICS 75.060Erdgas Bestimmung der Zusammensetzung mit definierter Unsicherheit durch Gaschromatographie Teil 4: Bestimmung von Stickstoff, Kohlenstoffdioxid und C1- bis C5- und C6+-Kohlenwasserstoffen fr einLabor- und Online-Messsystem mit zwei Sulen (ISO 6974-4 : 2000)European Standard EN ISO 6974-4
2、: 2001 has the status of a DIN Standard.A comma is used as the decimal marker.National forewordThis standard has been published in accordance with a decision taken by CEN/CMC to adopt, withoutalteration, International Standard ISO 6974-4 as a European Standard.The responsible German body involved in
3、 its preparation was the Normenausschuss Materialprfung(Materials Testing Standards Committee), Technical Committee Gasanalyse und Gasbeschaffenheit.The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN are asfollows:ISO Standard DIN StandardISO 6141 DIN IS
4、O 6142ISO 6143 DIN ISO 6143ISO 6974-1 DIN ISO 6974-1ISO 6974-2 DIN EN ISO 6974-2*)National Annex NAStandard referred to(and not included in Normative references and Bibliography)DIN EN ISO 6974-1 Natural gas Determination of composition with defined uncertainty by gaschromatography Part 1: Guideline
5、s for tailored analysis (ISO 6974-1 : 2000)Ref. No. DIN EN ISO 6974-4 : 2002-06English price group 10 Sales No. 111010.02DEUTSCHE NORM June 2002EN ISO 6974-4Continued overleaf.EN comprises 12 pages. No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr N
6、ormung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Natural gas Determination of composition with defined uncertaintyby gas chromatographyPart 4: Determination of nitrogen, carbon dioxide and C1to C5and C6+hydro-carbons for
7、 a laboratory and on-line measuring system using two columns(ISO 6974-4 : 2000)English version of DIN EN ISO 6974-4*) Currently at draft stage.ICS 75.060Descriptors: 2001. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Ref. No. EN ISO 6974-4 :
8、2001 EEN ISO 6974-4August 2001Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr Normung|English versionNatural gas Determination of composition with defineduncertainty by gas chromatographyPart 4: Determin
9、ation of nitrogen, carbon dioxide and C1to C5and C6+hydrocarbons for a laboratory and on-line measuring system using two columns(ISO 6974-4 : 2000)Erdgas Bestimmung der Zusammen-setzung mit definierter Unsicherheitdurch Gaschromatographie Teil 4:Bestimmung von Stickstoff,Kohlenstoffdioxid und C1- bi
10、s C5- undC6+-Kohlenwasserstoffen fr einLabor- und Online-Messsystem mitzwei Sulen (ISO 6974-4 : 2000)This European Standard was approved by CEN on 2001-06-22.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European Standard the
11、status of anational standard without any alteration.Up-to-date lists and bibliographical references concerning such national stand-ards may be obtained on application to the Management Centre or to anyCEN member.The European Standards exist in three official versions (English, French, German).A vers
12、ion in any other language made by translation under the responsibility of aCEN member into its own language and notified to the Management Centre hasthe same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, the CzechRepublic, Denmark, Finland, France
13、, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland,and the United Kingdom.Gaz naturel Dtermination de lacomposition avec une incertitudedfinie par chromatographie en phasegazeuse Partie 4: Dtermination delazote, du dioxyde de carbone
14、et deshydrocarbures (C1 C5et C6+) pourun laboratoire et un systme demesure en continu employant deuxcolonnes (ISO 6974-4 : 2000)Page 2EN ISO 6974-4 : 2001ForewordInternational StandardISO 6974-4 : 2000 Natural gas Determination of composition with defined uncertainty by gaschromatography Part 4: Det
15、ermination of nitrogen, carbon dioxide and C1to C5and C6+hydrocarbons for a laboratory and on-line measuring system using two columns,which was prepared by ISO/TC 193 Natural gas of the International Organization for Standardization, has beenadopted by CEN/CMC as a European Standard.This European St
16、andard shall be given the status of a national standard, either by publication of an identical textor by endorsement, and conflicting national standards withdrawn, by February 2002 at the latest.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of thefollo
17、wing countries are bound to implement this European Standard:Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom.Endorsement noticeThe text of the In
18、ternational Standard ISO 6974-4 : 2000 was approved by CEN as a European Standard withoutany modification.2334444669101010101011111212Page 3EN ISO 6974-4 : 2001Page 4EN ISO 6974-4 : 2001Page 5EN ISO 6974-4 : 2001Page 6EN ISO 6974-4 : 2001Page 7EN ISO 6974-4 : 2001Page 8EN ISO 6974-4 : 2001Page 9EN ISO 6974-4 : 2001Page 10EN ISO 6974-4 : 2001Page 11EN ISO 6974-4 : 2001Page 12EN ISO 6974-4 : 2001
