EN ISO 6326-3:1997

Natural gas - Determination of sulfur compounds - Part 3: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry (ISO 6326-3:1989)

Specifies a potentiometric method for components in natural gas in the concentration range equal to or above 1 mg/m3. The gas must be free of dust, mist, oxygen, hydrogen cyanide and carbon disulfide. The method is not recommended for gases containing more than approximately 1,5 % (V/V) carbon dioxide.

Erdgas - Bestimmung von Schwefelverbindungen - Teil 3: Bestimmung von Schwefelwasserstoff, Mercaptanschwefel und Kohlenstoffoxidsulfidschwefel durch Potentiometrie (ISO 6326-3:1989)

Dieser Teil von ISO 6326 legt ein potentiometrisches Verfahren zur Bestimmung von Schwefelwasserstoff, Mercaptanschwefel und Kohlenstoffoxidsulfidschwefel in Erdgas im Konzentrationsbereich größer/gleich 1 mg/m3. Das Gas muß frei von Staub, Nebel, Sauerstoff, Cyanwasserstoff und Schwefelkohlenstoff sein. Das Verhältnis von Schwefelwasserstoff zu Mercaptanschwefel und auch das Verhältnis von Mercaptanschwefel zu Schwefelwasserstoff soll 50 : 1  nicht überschreiten. Das Verfahren wird nicht für Gase empfohlen, die mehr als etwa 1,5 % (V/V) Kohlenstoffdioxid enthalten.

Gaz naturel - Détermination des composés soufrés - Partie 3: Détermination du sulfure d'hydrogène, des thiols et du sulfure de carbonyle par potentiométrie (ISO 6326-3:1989)

La présente partie de l'ISO 6326 prescrit une méthode potentiométrique pour la détermination du sulfure d'hydrogène, des thiols et du sulfure de carbonyle dans le gaz naturel, dans une plage de concentrations supérieures ou égales à 1 mg/m3. Le gaz doit être exempt de poussière, de fumées, d'oxygène, de cyanure d'hydrogène et de sulfure de carbone. Le rapport sulfure d'hydrogène/thiols ainsi que le rapport thiols/sulfure d'hydrogène ne doivent pas dépasser 50 : 1. La méthode n'est pas recommandée pour les gaz contenant plus d'environ 1,5 % (V/V) de dioxyde de carbone.
NOTE -- Dans toutes les parties de l'ISO 6326, 1 m3 de gaz est exprimé pour les conditions normales (0 °C; 101,325 kPa).

Zemeljski plin - Določevanje žveplovih spojin - 3. del: Določevanje vodikovega sulfida, merkaptanskega žvepla in ogljikosulfidnega žvepla s potenciometrijo (ISO 6326-3:1989)

General Information

• Status: Withdrawn
• Publication Date: 16-Dec-1997
• Withdrawal Date: 11-Feb-2020
• 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: 12-Feb-2020
• Ref Project: SIST EN ISO 6326-3:2000 - Natural gas - Determination of sulfur compounds - Part 3: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry (ISO 6326-3:1989)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 6326-3:2000
01-december-2000
=HPHOMVNLSOLQ'RORþHYDQMHåYHSORYLKVSRMLQGHO'RORþHYDQMHYRGLNRYHJD
VXOILGDPHUNDSWDQVNHJDåYHSODLQRJOMLNRVXOILGQHJDåYHSODVSRWHQFLRPHWULMR,62

Natural gas - Determination of sulfur compounds - Part 3: Determination of hydrogen
sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry (ISO 6326-3:1989)
Erdgas - Bestimmung von Schwefelverbindungen - Teil 3: Bestimmung von
Schwefelwasserstoff, Mercaptanschwefel und Kohlenstoffoxidsulfidschwefel durch
Potentiometrie (ISO 6326-3:1989)
Gaz naturel - Détermination des composés soufrés - Partie 3: Détermination du sulfure
d'hydrogene, des thiols et du sulfure de carbonyle par potentiométrie (ISO 6326-3:1989)
Ta slovenski standard je istoveten z: EN ISO 6326-3:1997
ICS:
75.060 Zemeljski plin Natural gas
SIST EN ISO 6326-3:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 6326-3:2000

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SIST EN ISO 6326-3:2000

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SIST EN ISO 6326-3:2000

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SIST EN ISO 6326-3:2000
INTERNATIONAL
ISO
STANDARD 6326-3
First edition
1989-07-01
Natura1 gas - Determination of Sulfur
compounds -
Part 3 :
Determination of hydrogen sulfide, mercaptan Sulfur
and carbonyl sulfide Sulfur by potentiometry
Gaz naturel - Determination des composh soufrks -
Partie 3 : D6 termina tion du sulfure d’h ydrogkne, des thiols et du sulfure de
par po ten tiome trie
carbon yfe
Reference number
ISO 6326-3 : 1989 (El

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SIST EN ISO 6326-3:2000
ISO 6326-3 : 1989 (El
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. Esch 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, govern-
mental 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.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 6326-3 was prepared by Technical Committee ISO/TC 158,
Analysis of gases.
ISO 6326 consists of the following Parts, under the general title Natura/ gas -
Determination of Sulfur compounds :
- Part 7: General introduction
- Part 2: Gas chromatographic method using detector for the
an elec trochemical
determination of odoriferous Sulfur compounds
- Part 3: Determination of hydrogen sulfide, mercap tan Sulfur and carbon yl
suffide Sulfur b y po ten tiometry
-
Part 4: Determination of individual Sulfur compounds chroma tograph y
bY PS
with a flame pho tome tric de tec tor
- Part 5: Lingener combustion method
0 ISO 1989
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any
means, electronie or mechanical, including photocopying and microfilm, without Permission in
writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-121 1 Geneve 20 l Switzerland
Printed in Switzerland
ii

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SIST EN ISO 6326-3:2000
ISO 6326-3 : 1989 (El
lntroduction
The standardization of several methods for the determination of Sulfur compounds in
natura1 gas is necessary in view of the diversity of these compounds [hydrogen sulfide,
carbonyl sulfide, thiols (mercaptans), tetrahydrothiophene (THT), etc.] and the pur-
poses of the determinations (required accuracy, measurement at the drilling head or in
the transmission pipes, etc. 1.
In Order to enable the user to choose the method most appropriate to his needs and to
perform the measurements under the best conditions, ISO 6326 has been prepared in
several Parts.
rapid com
ISO 6326-1 gives a parison of standardized methods and therefore provides
information for the choice of the method.
The other Parts of ISO 6326, including this Part, describe in detail the various stan-
dardized methods.
The determination of total Sulfur is specified in ISO 4260 : 1987, Petroleum products
Determination of Sulfur content - Wickbold combustion
and hydrocarbons -
method.

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