EN ISO 6974-1:2001
(Main)Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 1: Guidelines for tailored analysis (ISO 6974-1:2000)
Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 1: Guidelines for tailored analysis (ISO 6974-1:2000)
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 Unsicherheit durch Gaschromatographie - Teil: Richtlinien für die maßgeschneiderte Analyse (ISO 6974-1:2000)
Dieser Teil von ISO 6974 gibt Richtlinien für die quantitative Analyse von Erdgaskomponenten innerhalb des in Tabelle 1 angegebenen Anwendungsbereichs.
Die einzelnen Verfahren, wie sie in Teil 3 und den folgenden Teilen von ISO 6974 beschrieben sind, können eingeschränktere Anwendungsbereiche als die in Tabelle 1 angegebenen haben, aber in allen Fällen werden sie im Gesamtanwendungsbereich der angegebenen Grenzen liegen.
Tabelle 1 - Anwendungsbereiche
Komponente Molfraktionsbereich
%
Wasserstoff 0,001 bis 0,5
Helium 0,001 bis 0,5
Sauerstoff 0,001 bis 5
Stickstoff 0,001 bis 60
Kohlenstoffdioxid 0,001 bis 35
Methan 40 bis 100
Ethan 0,02 bis 15
Propan 0,001 bis 25
Butane 0,0001 bis 5
Pentane 0,0001 bis 1
Hexane und höhere 0,0001 bis 0,5
Gaz naturel - Détermination de la composition avec une incertitude définie par chromatographie en phase gazeuse - Partie 1: Lignes directrices pour l'analyse spéciale (ISO 6974-1:2000)
L'ISO 6974-1:2000 donne les lignes directrices pour l'analyse quantitative des constituants du gaz naturel dans les limites des gammes d'application indiquées au Tableau 1 de l'ISO 6974-1:2000.
Zemeljski plin - Določevanje sestave z določeno negotovostjo s plinsko kromatografijo - 1. del: Navodila za specialne analize (ISO 6974-1:2000)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2001
=HPHOMVNLSOLQ'RORþHYDQMHVHVWDYH]GRORþHQRQHJRWRYRVWMRVSOLQVNR
NURPDWRJUDILMRGHO 1DYRGLOD]DVSHFLDOQHDQDOL]H ,62
Natural gas - Determination of composition with defined uncertainty by gas
chromatography - Part 1: Guidelines for tailored analysis (ISO 6974-1:2000)
Erdgas - Bestimmung der Zusammensetzung mit definierter Unsicherheit durch
Gaschromatographie - Teil: Richtlinien für die maßgeschneiderte Analyse (ISO 6974-
1:2000)
Gaz naturel - Détermination de la composition avec une incertitude définie par
chromatographie en phase gazeuse - Partie 1: Lignes directrices pour l'analyse spéciale
(ISO 6974-1:2000)
Ta slovenski standard je istoveten z: EN ISO 6974-1:2001
ICS:
75.060 Zemeljski plin Natural gas
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 6974-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2001
ICS 75.060
English version
Natural gas - Determination of composition with defined
uncertainty by gas chromatography - Part 1: Guidelines for
tailored analysis (ISO 6974-1:2000)
Gaz naturel - Détermination de la composition avec une Erdgas - Bestimmung der Zusammensetzung mit
incertitude définie par chromatographie en phase gazeuse definierter Unsicherheit durch Gaschromatographie - Teil:
- Partie 1: Lignes directrices pour l'analyse spéciale (ISO Richtlinien für die maßgeschneiderte Analyse (ISO 6974-
6974-1:2000) 1:2000)
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 European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards 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 translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6974-1:2001 E
worldwide for CEN national Members.
CORRECTED 2002-03-13
Foreword
The text of the International Standard from Technical Committee ISO/TC 193 "Natural gas" of
the International Organization for Standardization (ISO) has been taken over as a European
Standard by CMC.
This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by February 2002, and conflicting national
standards shall be withdrawn at the latest by February 2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg,
Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of the International Standard ISO 6974-1:2000 has been approved by CEN as a
European Standard without any modifications.
NOTE Normative references to International Standards are listed in annex ZA (normative).
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated
by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 6974-3 2000 Natural gas - Determination of EN ISO 6974-3 2001
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 6974-4 2000 Natural gas - Determination of EN ISO 6974-4 2001
composition with defined
uncertainty by gas chromatography
- Part 4: Determination of nitrogen,
carbon dioxide and C1 to C5 and
C6+ hydrocarbons for a laboratory
and on-line measuring system
using two columns
ISO 6974-5 2000 Natural gas - Determination of EN ISO 6974-5 2001
composition with defined
uncertainty by gas chromatography
- Part 5: Determination of nitrogen,
carbon dioxide and C1 to C5 and
C6+ hydrocarbons for a laboratory
and on-line process application
using three columns
ISO 10715 1997 Natural gas - Sampling guidelines EN ISO 10715 2000
INTERNATIONAL ISO
STANDARD 6974-1
First edition
2000-04-01
Natural gas — Determination of
composition with defined uncertainty by
gas chromatography —
Part 1:
Guidelines for tailored analysis
Gaz naturel — Détermination de la composition avec une incertitude
définie par chromatographie en phase gazeuse —
Partie 1: Lignes directrices pour l'analyse spéciale
Reference number
ISO 6974-1:2000(E)
©
ISO 2000
ISO 6974-1:2000(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not
be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this
file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this
area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters
were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event
that a problem relating to it is found, please inform the Central Secretariat at the address given below.
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body
in the country of the requester.
ISO copyright office
Case postale 56 � CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 734 10 79
E-mail copyright@iso.ch
Web www.iso.ch
Printed in Switzerland
ii © ISO 2000 – All rights reserved
ISO 6974-1:2000(E)
Contents Page
Foreword.iv
Introduction.v
1 Scope .1
2 Normative references .1
3 Terms and definitions .2
4 Symbols and subscripts .4
5 Principles of analysis .4
6 Materials .5
7 Apparatus .5
8 Required characteristics.6
9 Sampling.6
10 Analytical procedure .6
11 Methods of test .8
12 Control chart .10
13 Uncertainty in the mole fraction of the normalized components .10
14 Test report .10
Annex A (informative) Comparative characteristics of typical analytical methods, as described in parts
3 to 6 of ISO 6974.12
Annex B (informative) Use of control charts .13
Bibliography.16
ISO 6974-1:2000(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, governmental and non-governmental, in
liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this part of ISO 6974 may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 6974-1 was prepared by Technical Committee ISO/TC 193, Natural gas, Subcommittee
SC 1, Analysis of natural gas.
This part as well as the other five parts of ISO 6974 cancel and replace ISO 6974:1984 which specified only one
method.
ISO 6974 consists of the following parts, under the general title Natural gas — Determination of composition with
defined uncertainty by gas chromatography :
— Part 1: Guidelines for tailored analysis
— Part 2: Measuring-system characteristics and statistics for data treatment
— Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C using
two packed columns
— Part 4: Determination of nitrogen, carbon dioxide and C to C and C hydrocarbons for a laboratory and on-
1 5 6+
line measuring system using two columns
— Part 5: Determination of nitrogen, carbon dioxide and C to C and C hydrocarbons for a laboratory and on-
1 5 6+
line process application using three columns
— Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C using
three capillary columns
Annexes A and B of this part of ISO 6974 are for information only.
iv © ISO 2000 – All rights reserved
ISO 6974-1:2000(E)
Introduction
This part of ISO 6974 gives guidelines for the "tailored" analysis of natural gas with the aim of determining the mole
fractions of the principal components.
ISO 6974 (all parts) describes methods of analysis of natural gas with definable levels of uncertainty. The approach
is suitable for the calculation of calorific value and other additive physical properties of the gas, again with a
definable uncertainty.
Part 2 of ISO 6974 describes the determination of the measuring system characteristics and the statistical
approach to data handling and error calculation with the aim of defining the uncertainties in the component mole
fractions.
Part 3 and subsequent parts of ISO 6974 describe different possible methodologies for tailored analyses, which
can only be applied in conjunction with parts 1 and 2 of ISO 6974.
Parts 1 and 2 represent the body of ISO 6974. The method chosen from Part 3 and subsequent parts or from any
other source requires compliance with parts 1 and 2 of ISO 6974.
Informative annex A gives a comparison of the
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.