EN ISO 13686:2005
(Main)Natural gas - Quality designation (ISO 13686:1998)
Natural gas - Quality designation (ISO 13686:1998)
Erdgas - Bestimmung der Beschaffenheit (ISO 13686:1998)
Die vorliegende Internationale Norm legt Parameter zur Beschreibung von fertig aufbereitetem Erdgas fest und, wo diese erforderlich sind, von Erdgasgemischen. Dieses Gas wird nachstehend als Erdgas" bezeichnet.
Der Hauptteil der vorliegenden Norm enthält eine Liste dieser Parameter mit Einheiten und Verweisen auf Messnormen. Darüber hinaus werden in informativen Anhängen zu dieser Norm Beispiele für typische Werte dieser Parameter gegeben, wobei das Hauptaugenmerk auf Gesundheit und Sicherheit gelegt wird.
Bei der Festlegung von Parametern für die Gaszusammensetzung, für physikalische Eigenschaften und Spurenbestandteile wurden zur Sicherstellung ihrer Gültigkeit vorhandene Erdgase entsprechend berücksichtigt.
Das Thema Austauschbarkeit wird in Anhang A, A.2, behandelt.
Gaz naturel - Désignation de la qualité (ISO 13686:1998)
L'ISO 13686:1998 traite des paramètres requis pour décrire le gaz naturel dans son état de traitement final et après ajustement, si nécessaire. Ce type de gaz est désigné sous l'appellation "gaz naturel".
Elle comporte une partie principale renfermant une liste de paramètres, les unités dans lesquelles ceux-ci s'expriment et les références à des normes de mesurage, ainsi que des annexes informatives donnant des exemples de valeurs types de ces paramètres avec un accent particulier mis sur l'hygiène et la sécurité.
Tout en fournissant des paramètres de composition, de propriétés physiques et de constituants en traces, état est fait des gaz naturels existants de façon à garantir leur viabilité.
Des détails concernant l'interchangeabilité sont donnés en Annexe.
Zemeljski plin – Označevanje kakovosti (ISO 13686:1998)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2005
=HPHOMVNLSOLQ±2]QDþHYDQMHNDNRYRVWL ,62
Natural gas - Quality designation (ISO 13686:1998)
Erdgas - Bestimmung der Beschaffenheit (ISO 13686:1998)
Gaz naturel - Désignation de la qualité (ISO 13686:1998)
Ta slovenski standard je istoveten z: EN ISO 13686:2005
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 13686
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2005
ICS 75.060
English version
Natural gas - Quality designation (ISO 13686:1998)
Gaz naturel - Désignation de la qualité (ISO 13686:1998)
This European Standard was approved by CEN on 17 April 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, 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
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13686:2005: E
worldwide for CEN national Members.
Foreword
The text of ISO 13686:1998 has been prepared by Technical Committee ISO/TC 193 "Natural
gas” of the International Organization for Standardization (ISO) and has been taken over as EN
ISO 13686:2005 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 November 2005, and conflicting national
standards shall be withdrawn at the latest by November 2005.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 13686:1998 has been approved by CEN as EN ISO 13686:2005 without any
modifications.
INTERNATIONAL IS0
STANDARD 13686
First edition
1998-05-01
Natural gas -
Quality designation
Gaz nature/ - Dhignation de la qua/it6
Reference number
IS0 13686: 1998(E)
IS0 13686:1998(E)
Contents
V
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Scope .*.,.,.,.,.,.,.,.,,.,,,,.~.~,,~,,~~,~,~,~,~~~~,,~
2 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . .*.*.
3 Definitions . . . . . . . . . . . . . . . . . . . .~.~.~.
4 Symbols, abbreviations and units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*.
5 Quality designation parameters .
..............................................................................................
5.1 Gas composition
5.2 Gas properties .
6 Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .~~.~~~.~~~~.~~~.~~~.~.~~~.~.~.~~.~~~.~~~,,~~.~,~,~,~~~~,,,
..........................................
Annex A (informative) Introduction to informative annexes
A 1 Quality specification .
A 2 Interchangeability .
...........................................................
A 3 Natural gas, Local distribution system
A 4 Condensation curves .
.....................................................................................................
A.5 Odorization
...................................................
A 6 Nominal range of natural gas components
0 IS0 1998
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 the publisher.
International Organization for Standardization
Case postale 56 l CH-1211 Geneve 20 l Switzerland
Internet central @I iso.ch
x.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii
IS0 13686: 1998(E)
@ IS0
Annex B (informative) German Regulations Code of Practice DVGW G 260 I:
.................. .22
1983, G 260/l I: 1990 Extract of the relevant parts for natural gases
B 1 Basic gases, substitute gases, additive gases .
............................................................................................... 22
B 2 Standard state
B 3 Standard values .
B 4 Gas families, groups .
............................................................................................
B 5 Gas composition
.............................................................. 24
B 6 Notes on the technical burning data
.25
.................
B 7 Notes on the gas constituents and gas secondary substances.
..................................................... 27
B 8 Data and guide values for the gas quality
Annex C (informative) European standard EN 437 “Test gases, test pressures
. . . . .*.*.
and categories of appliances”
................................... 31
Annex D (informative) Interchangeability A.G.A. Index Method
..............................................................................
D 1 Example for a calculation
...................... .37
Annex E (informative) British Gas Hydrocarbon Equivalence Method.
....................................................................... 37
E 1 Composition-based prediction
..................................................................... 38
E 2 Prediction of Interchangeability
.........................................................
E 3 Three Dimensional Prediction Diagram
. . . . . . . . . . . . . . . . . .*.*. 41
Annex F (informative) Weaver Index Method
Annex G (informative) French Method for Determining Gas Interchangeability
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
(Delbourg Method)
G 1. Calculation of Interchangeability Indices on the Basis of Chemical
Composition of the Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G 2. Interchangeability Limits for Second-family Gases for Domestic
Appliances at 20 mbar .,,.,.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Annex H (informative) Bibliography
@ IS0
IS0 13686:1998(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work of
preparing International Standards is normally carried out through IS0
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. IS0
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
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.
International Standard IS0 13686 was prepared by Technical Committee
ISO/TC 193, NaturaI gas.
Annexes A to H of this International Standard are for information only.
iv
@ IS0
IS0 13686: 1998(E)
Introduction
The need for an International Standard concerning the designation of natural gas
quality was a basic reason for the establishment of lSO/TC 193 in 1989.
Standardisation of the designation of quality is specifically stated in the scope of the
TC. Natural gas, supplying 20 % of the world ’s primary energy, is likely to increase
its market share greatly. Yet there is currently no generally accepted definition of
natural gas quality.
To meet this need, it was decided that a general statement of the parameters (i.e.
components and properties) required should be established and that the resulting
International Standard would not specify values of, or limits for, these parameters.
Furthermore, it was decided that general-purpose natural gas transmitted to local
distribution systems (LDS), referred to as “natural gas ”, should be the first
consideration. Thus, this International Standard was developed. Informative
annexes are attached as examples of actual natural gas quality specifications that
already exist.
This International Standard does not impose any quality restrictions on raw gas
transported via pipelines or gathering systems to processing or treating facilities.
It should be understood that this International Standard covers natural gas at the
pipeline level prior to any treatment by LDS for peakshaving purposes. This covers
the vast percentage of the natural gas that is sold in international trade and
transmitted for custody transfer to local distribution systems.
V
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IS0 13686: 1998(E)
INTERNATIONAL STANDARD o IS0
Quality designation
Natural gas -
1 Scope
This International Standard specifies the parameters required to describe
finally processed and, where required, blended natural gas. Such gas is
referred to subsequently in this text simply as “natural gas ”.
The main text of this standard contains a list of these parameters, their units
and references to measurement standards. Informative annexes give examples
of typical values for these parameters, with the main emphasis on health and
safety.
In defining the parameters governing composition, physical properties and
trace constituents, consideration has also been given to existing natural gases
to ensure their continuing viability.
The question of interchangeability is dealt with in annex A clause A.2.
2 Normative references
The following standards contain provisions which, through reference in this
text, constitute provisions of this International Standard. At the time of publica-
tion, the editions indicated were valid. All standards are subject to revision,
and parties to agreements based on this International Standard are
encouraged to investigate the possibility of applying the most recent editions of
the standards indicated below. Members of IEC and IS0 maintain registers of
currently valid International Standards.
IS0 6326-l : 1989, Natural gas - Determination of sulfur compounds -
Part I: General introduction.
IS0 6326-2: 1981,
Gas analysis - Determination of sulphur compounds
in natural gas - Part 2: Gas chromatographic method
using an electrochemical detector for the
determination of odoriferous sulphur compounds.
IS0 6326-3: 1989, Natural gas - Determination of sulfur compounds -
Part 3: Determination of hydrogen sulfide, mercaptan
sulfur and carbonyl sulfide sulfur by potentiometry.
IS0 6326-4: 1994, Natural gas - Determination of sulfur compounds -
Pat? 4: Gas chromatographic method using a flame
photometric detector for the determination of
hydrogen sulfide, carbonyl sulfide and other sulfur-
containing odorants.
0 IS0
IS0 13686: 1998(E)
IS0 632695:1989, Natural gas - Determination of sulfur compounds -
Par? 5: Lingener combustion method.
Gas analysis - Determination of the water dew point
IS0 6327:1981,
of natural gas - Cooled surface condensation
hygrometers.
Natural gas - Simple analysis by gas
IS0 6568:1981,
chromatography.
IS0 65709t1983, Nat
...
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