ISO 11626:2024
(Main)Natural gas — Determination of sulfur compounds — Determination of hydrogen sulfide content by UV absorption method
Natural gas — Determination of sulfur compounds — Determination of hydrogen sulfide content by UV absorption method
This document describes the test method for the determination of hydrogen sulfide content in natural gas by ultraviolet (UV) absorption method. This document applies to the determination of hydrogen sulfide content in natural gas, in the range from 1 mg/m3 to 50 mg/m3.
Gaz naturel — Détermination des composés soufrés — Détermination de la teneur en sulfure d'hydrogène par la méthode d'absorption UV
Le présent document décrit la méthode d'essai pour la détermination de la teneur en sulfure d'hydrogène dans le gaz naturel par la méthode d'absorption UV. Le présent document s'applique à la détermination de la teneur en sulfure d'hydrogène dans le gaz naturel dans la plage de 1 mg/m3 à 50 mg/m3.
General Information
Buy Standard
Standards Content (Sample)
International
Standard
ISO 11626
First edition
Natural gas — Determination of
2024-02
sulfur compounds — Determination
of hydrogen sulfide content by UV
absorption method
Gaz naturel — Détermination des composés soufrés —
Détermination de la teneur en sulfure d'hydrogène par la
méthode d'absorption UV
Reference number
ISO 11626:2024(en) © ISO 2024
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ISO 11626:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2024 – All rights reserved
ii
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ISO 11626:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test conditions . 1
5 Principle . 2
6 Instrument . 2
6.1 General requirements .2
6.2 Sample processing system .2
6.3 Optical analysis system .2
6.4 Data processing and recording system .3
7 Reagents and materials . 3
7.1 Zero gas .3
7.2 Hydrogen sulfide calibration gas mixture .3
7.3 Hydrogen sulfide absorption solution .3
8 Sampling . 3
8.1 Installation location .3
8.2 Materials requirement .
...
Norme
internationale
ISO 11626
Première édition
Gaz naturel — Détermination des
2024-02
composés soufrés — Détermination
de la teneur en sulfure d'hydrogène
par la méthode d'absorption UV
Natural gas — Determination of sulfur compounds —
Determination of hydrogen sulfide content by UV absorption method
Numéro de référence
ISO 11626:2024(fr) © ISO 2024
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ISO 11626:2024(fr)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2024
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
© ISO 2024 – Tous droits réservés
ii
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ISO 11626:2024(fr)
Sommaire Page
Avant-propos .iv
1 Domaine d'application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Conditions d'essai . 1
5 Principe. 2
6 Instrument . 2
6.1 Exigences générales .2
6.2 Système de traitement d'échantillons .2
6.3 Système d'analyse optique .3
6.4 Système de traitement et d'enregistrement des données .3
7 Réactifs et matériaux . 3
7.1 Gaz de référence .3
7.2 Mélange de gaz étalon de sulfure d'hydrogène .3
7.3 Solution d'absorption de sulfure d'hydrogène .3
8 Échantillonnage . 3
8.1 Emplacement d'installation .3
8.2 Exigence relative aux matériaux .
...
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 11626
ISO/TC 193/SC 1
Natural gas — Determination of
Secretariat: NEN
sulfur compounds — Determination
Voting begins on:
2023-12-07 of hydrogen sulfide content by UV
absorption method
Voting terminates on:
2024-02-01
Gaz naturel — Détermination des composés soufrés — Détermination
de la teneur en sulfure d'hydrogène par la méthode d'absorption UV
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 11626:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 1 ----------------------
ISO/FDIS 11626:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 11626
ISO/TC 193/SC 1
Natural gas — Determination of
Secretariat: NEN
sulfur compounds — Determination
Voting begins on:
of hydrogen sulfide content by UV
absorption method
Voting terminates on:
Gaz naturel — Détermination des composés soufrés — Détermination
de la teneur en sulfure d'hydrogène par la méthode d'absorption UV
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
ISO/FDIS 11626:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
© ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 2 ----------------------
ISO/FDIS 11626:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test conditions .1
5 Principle . 2
6 Instrument . 2
6.1 General requirements . 2
6.2 Sample processing system . 2
6.3 Optical analysis system . 3
6.4 Data processing and recording system .
...
ISO/FDIS 11626:2023 (E)
ISO/TC 193/SC 1/WG 24
Date: 2023-10-18
Secretariat: NEN
Date: 2023-11-23
Natural gas — Determination of sulfur compounds —
Determination of hydrogen sulfide content by UV absorption
method
Gaz naturel — Détermination des composés soufrés — Détermination de la teneur en sulfure d'hydrogène
par la méthode d'absorption UV
FDIS stage
© ISO 2023 – All rights reserved
---------------------- Page: 1 ----------------------
ISO/FDIS 11626:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this
publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical,
including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can
be requested from either ISO at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 11626:2023(E)
Contents
Foreword . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test conditions . 1
5 Principle . 2
6 Instrument . 2
6.1 General requirements . 2
6.2 Sample processing system . 2
6.3 Optical analysis system . 2
6.4 Data processing and recording system . 2
7 Reagents and materials . 3
7.1 Zero gas . 3
7.2 Hydrogen sulfide calibration gas mixture . 3
7.3 Hydrogen sulfide absorption solution . 3
8 Sampling . 3
8.1 Installation location . 3
8.2 Materials requirement . 3
8.3 Online sampling requirement . 3
9 Sample testing . 3
9.1 Instrument status confirmation .
...
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