ISO 7291:2010/Amd 1:2015

Gas welding equipment — Pressure regulators for manifold systems used in welding, cutting and allied processes up to 30 MPa (300 bar) — Amendment 1

Matériel de soudage aux gaz — Détendeurs de centrale de bouteilles pour le soudage, le coupage et les techniques connexes jusqu'à 30 MPa (300 bar) — Amendement 1

General Information

• Status: Published
• Publication Date: 14-Apr-2015
• ICS: 25.160.30 - Welding equipment
• Technical Committee: ISO/TC 44/SC 8 - Equipment for gas welding, cutting and allied processes
• Drafting Committee: ISO/TC 44/SC 8 - Equipment for gas welding, cutting and allied processes
• Current Stage: 6060 - International Standard published
• Start Date: 15-Apr-2015
• Due Date: 08-Feb-2015
• Completion Date: 08-Feb-2015

Relations

• Consolidates: EN ISO 7291:2010/A1:2015 - Gas welding equipment - Pressure regulators for manifold systems used in welding, cutting and allied processes up to 30 MPa (300 bar) (ISO 7291:2010/AMD 1:2015)
• Effective Date: 12-Feb-2026
• Consolidates: ISO 10160:1997/Amd 1:2002 - Information and documentation — Open Systems Interconnection — Interlibrary Loan Application Service Definition — Amendment 1: Addition of annex D acknowledging the National Library of Canada as the Maintenance Agency
• Effective Date: 06-Jun-2022
• Amends: ISO 7291:2010 - Gas welding equipment — Pressure regulators for manifold systems used in welding, cutting and allied processes up to 30 MPa (300 bar)
• Effective Date: 21-Aug-2021

Overview

ISO 7291:2010/Amd 1:2015 is an international amendment to the standard for gas welding equipment, specifically addressing pressure regulators for manifold systems used in welding, cutting, and allied processes up to 30 MPa (300 bar). Published by ISO, this amendment aligns the requirements for marking pressure regulators with the updated gas letter codes established in ISO 10225. By updating technical references and marking requirements, this amendment supports improved safety and clarity for operators and manufacturers in the welding industry.

Key Topics

• Amendment to Marking Requirements: The core update involves modifying how pressure regulators for manifold systems are marked regarding the gases they handle. The amendment instructs manufacturers to comply with the gas letter code system defined in ISO 10225.
• Reference Inclusion: ISO 10225, concerning the marking for gas welding, cutting, and allied process equipment, is formally referenced, ensuring consistency in equipment identification across related standards.
• Regulatory Clarity: The amendment replaces previous language about marking gas names or symbols with a requirement to use standardized gas letter codes when full information cannot be marked.
• Table Deletion: Previous references, such as Table 5, have been removed to streamline and clarify compliance requirements for manufacturers.

Applications

The amendment to ISO 7291 is applicable to organizations and manufacturers involved in:

• Manufacturing of Gas Welding and Cutting Equipment: Ensures that pressure regulators for manifold systems used in industrial processes up to 30 MPa (300 bar) are marked according to the latest standards, facilitating safe and proper usage.
• Industrial Safety Compliance: Standardized gas identification improves workplace safety by reducing the risk of errors in gas selection, handling, and usage.
• Global Trade and Export: By aligning with ISO standards, equipment producers can more easily market products internationally, meeting regulatory requirements in multiple jurisdictions.
• Maintenance and Training: Clear, unified marking according to ISO 10225 helps technicians, trainers, and users quickly identify the correct gas for each regulator, streamlining maintenance and reducing training time.

Related Standards

• ISO 7291:2010: The base standard specifying construction and performance requirements for pressure regulators for manifold systems.
• ISO 10225: Provides the system of gas letter codes and marking requirements for equipment used in gas welding, cutting, and allied processes, referenced as the basis for the amended marking procedure.
• ISO/TC 44 Subcommittee 8: The technical committee responsible for standards development in equipment for gas welding, cutting, and allied processes.

Practical Value

Implementing ISO 7291:2010/Amd 1:2015 ensures that gas welding equipment remains compliant with international marking best practices, improving safety, uniformity, and regulatory acceptance. By aligning marking procedures with ISO 10225, this amendment delivers greater clarity for end-users and consistency in manufacturing, supporting safer operations and easier product identification throughout the life cycle of welding and cutting equipment.

Keywords: ISO 7291, gas welding equipment, pressure regulator, manifold system, welding standards, gas cutting, ISO 10225, equipment marking, industrial safety, international standardization, 30 MPa, 300 bar

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 7291
Third edition
2010-11-01
AMENDMENT 1
2015-04-15
Gas welding equipment — Pressure
regulators for manifold systems
used in welding, cutting and allied
processes up to 30 MPa (300 bar)
AMENDMENT 1
Matériel de soudage aux gaz — Détendeurs de centrale de bouteilles
pour le soudage, le coupage et les techniques connexes jusqu’à 30 MPa
(300 bar)
AMENDEMENT 1
Reference number
ISO 7291:2010/Amd.1:2015(E)
©
ISO 2015
ISO 7291:2010/Amd.1:2015(E)
© ISO 2015
All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2015 – All rights reserved

ISO 7291:2010/Amd.1:2015(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial r
...

NORME ISO
INTERNATIONALE 7291
Troisième édition
2010-11-01
AMENDEMENT 1
2015-04-15
Matériel de soudage aux gaz —
Détendeurs de centrale de bouteilles
pour le soudage, le coupage et les
techniques connexes jusqu’à 30 MPa
(300 bar)
AMENDEMENT 1
Gas welding equipment — Pressure regulators for manifold systems
used in welding, cutting and allied processes up to 30 MPa (300 bar)
AMENDMENT 1
Numéro de référence
ISO 7291:2010/Amd.1:2015(F)
©
ISO 2015
ISO 7291:2010/Amd.1:2015(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2015
Droits de reproduction réservés. Sauf indication contraire, 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, l’affichage sur
l’internet ou sur un Intranet, sans autorisation écrite préalable. Les demandes d’autorisation peuvent être adressées 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 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Publié en Suisse
ii © ISO 2015 – Tous droits réservés

ISO 7291:2010/Amd.1:2015(F)
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes
nationaux de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est
en général confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l’ISO participent également aux travaux.
L’ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui concerne
la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier de prendre note des différents
critères d’approbation requis pour les différents types de documents ISO. Le présent document a été
rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www.
iso.org/directives).
L’attention est appelée sur le fait que certains des éléments du présent document peuvent faire l’objet de
d
...