ISO 11117:2019/Amd 1:2026

• Status: Published
• Publication Date: 02-Nov-2026
• ICS: 11.040.10 - Anaesthetic, respiratory and reanimation equipment
• ICS: 23.020.35 - Gas cylinders
• Technical Committee: ISO/TC 58/SC 2 - Cylinder fittings
• Drafting Committee: ISO/TC 58/SC 2/WG 6 - Gas cylinder valves - Specifications and testing
• Current Stage: 6060 - International Standard published
• Start Date: 03-Nov-2026
• Completion Date: 03-Nov-2026

• Consolidates: EN ISO 11117:2019/FprA1 - Gas cylinders - Valve protection caps and guards - Design, construction and tests - Amendment 1 (ISO 11117:2019/FDAM 1:2026)
• Effective Date: 12-Feb-2026
• Consolidates: ISO 24118-1:2023 - Paper and board — Stylus contact method — Part 1: Determination of surface roughness
• Effective Date: 07-Jan-2025
• Amends: ISO 11117:2019 - Gas cylinders — Valve protection caps and guards — Design, construction and tests
• Effective Date: 19-Oct-2024

ISO 11117:2019/Amd 1 is an ISO amendment to ISO 11117:2019 for gas cylinders - valve protection caps and guards - design, construction and tests. It updates specific design, dimensional and evaluation text for valve protection caps and valve guards, with a focus on North American thread details and when further testing is needed after valve changes.

What does ISO 11117:2019/Amd 1 specify?

ISO 11117:2019/Amd 1 specifies changes to the existing ISO 11117:2019 requirements for valve protection caps and valve guards. It is an amendment document, so it revises selected clauses rather than restating the full standard.

The amendment touches the following parts of the base document:

Affected part	What it changes
4.3, Figure 5	Replaces the figure for typical North American thread profiles
4.3, Table 3	Replaces the dimensions for typical North American threads
4.3, Table 4	Replaces the tolerances for those threads
7.1	Clarifies how maximum dimensions and maximum dimensional envelope are referenced
7.2 e) 2)	Expands what is meant by the dimensional envelope for valve guards
7.7.8	Revises when changes to the valve or valve guard need further evaluation
7.7.9	Revises when additional valve changes need further evaluation
Clause 9	Removes items b) and c) and renumbers the list

In practice, this means the amendment is mainly about thread data, drawing/specification detail, and the decision logic for repeating the drop test.

What are the key requirements of ISO 11117:2019/Amd 1?

ISO 11117:2019/Amd 1 changes the technical basis for specifying and checking valve protection caps and valve guards. The most important updates are about thread dimensions, how valve guards are described, and when a changed design needs another evaluation.

Thread details for North American designs

Clause 4.3 replaces Figure 5 and Tables 3 and 4 for typical North American threads. Table 3 gives the thread dimensions in millimetres, and Table 4 gives the tolerances for those same threads.

For users, this matters when drawing, machining, or checking parts. The cap or guard thread has to fit the cylinder neck ring thread, so the updated dimensions and tolerances are the reference for compatibility.

How valve guards are described

Clause 7.1 now refers to either maximum dimensions or a maximum dimensional envelope. Clause 7.2 e) 2) says the dimensional envelope for valve guards must include external dimensions, at least L and R, and the arrangement of physical features.

In practice, a simple size statement is not enough for a valve guard. Designers and approvers need enough external geometry information, including feature arrangement, to judge the protected space.

When further evaluation is needed

Clause 7.7.8 states that changes to the valve design, such as material, connections or handwheel, do not require further evaluation for valve protection caps and valve guards. For valve guards, however, adding or changing the position, arrangement or orientation of physical features of the protected valve can trigger further evaluation to decide whether the drop test must be repeated.

Clause 7.7.9 uses the same logic for additional valve design changes. If those changes affect features such as material, connections, handwheel or feature layout, the document requires further evaluation before deciding on another drop test.

For users, this is the practical decision point: not every valve change automatically means retesting, but changes that affect the protection behavior may.

Clause 9 housekeeping change

Clause 9 removes items b) and c) and updates the numbering of the list that follows.

Who uses ISO 11117:2019/Amd 1?

ISO 11117:2019/Amd 1 is used by people who design, manufacture, test, approve or buy gas cylinder valve protection caps and valve guards. It is especially relevant to:

• gas cylinder and fitting manufacturers
• design engineers working on caps, guards and thread interfaces
• test laboratories carrying out drop testing and dimensional checks
• quality and certification staff reviewing conformity evidence
• buyers specifying protected valve hardware for gas cylinders

These users need the amendment when they work with the updated North American thread data or when they decide whether a design change requires repeat evaluation.

What changed in ISO 11117:2019/Amd 1 from the previous edition?

ISO 11117:2019/Amd 1 is Amendment 1 to ISO 11117:2019. The stated changes are the replacement of Figure 5, Tables 3 and 4, the clarification of maximum dimensions and dimensional envelope language, revised evaluation text in 7.7.8 and 7.7.9, and removal of items b) and c) from clause 9.

What does the ISO 11117:2019/Amd 1 document contain?

ISO 11117:2019/Amd 1 contains one replaced figure, two replaced tables, revised clause wording, and a clause 9 numbering update. The figure and tables provide the North American thread profiles, dimensions and tolerances used for valve protection caps, valve guards and cylinder neck rings.

The wording changes in clause 7 help users document the geometry of valve guards more precisely and decide when a modified valve needs further evaluation. The amended text also links that decision to whether the drop test must be repeated.

For engineers and test teams, the document is mainly a change-control reference. It is used when updating drawings, checking fit, preparing test evidence, or reviewing whether a change to the valve or guard affects the previous test result.

International
Standard
ISO 11117
Third edition
Gas cylinders — Valve protection
2019-11
caps and guards — Design,
construction and tests
AMENDMENT 1
2026-11
AMENDMENT 1
Bouteilles à gaz — Chapeaux fermés et chapeaux ouverts de
protection des robinets — Conception, construction et essais
AMENDEMENT 1
Reference number
ISO 11117:2019/Amd.1:2026(en) © ISO 2026

ISO 11117:2019/Amd.1:2026(en)
© ISO 2026
All rights reserved.
This ISO publication is protected by copyright and is owned by ISO and/or its licensors.
The content of this ISO publication is provided under licence, not sold. Use is subject to the applicable licence terms issued by ISO,
an ISO member body, or an authorized third-party distributor.
Except as required for implementation or expressly permitted by a separate licence, no part of this ISO publication may be
reproduced, distributed, modified, used, or made available in any form or by any means – electronic or mechanical, including
photocopying, scanning, recording, or posting on internal or external digital platforms.
Any use beyond the scope of the granted rights is prohibited and may result in legal action.
ISO copyright office
CP 401 • CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 11117:2019/Amd.1:2026(en)
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 rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 2, Cylinder
fittings, in collaboration with the European Committee for Standardization (CEN) Technical Committee
CEN/TC 23, Transportable gas cylinders in accordance with the Agreement on tech
...

Norme
internationale
ISO 11117
Troisième édition
Bouteilles à gaz — Chapeaux fermés
2019-11
et chapeaux ouverts de protection
des robinets — Conception,
AMENDEMENT 1
construction et essais
2026-11
AMENDEMENT 1
Gas cylinders — Valve protection caps and guards — Design,
construction and tests
AMENDMENT 1
Numéro de référence
ISO 11117:2019/Amd.1:2026(fr) © ISO 2026

ISO 11117:2019/Amd.1:2026(fr)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2026
Tous droits réservés.
La présente publication de l’ISO est protégée par le droit d’auteur et demeure la propriété de l’ISO et/ou de ses concédants de
licence.
Le contenu de la présente publication de l’ISO est fourni sous licence, et n’est pas vendu. Son utilisation est soumise aux conditions
de licence applicables définies par l’ISO, un organisme membre de l’ISO, ou un distributeur tiers agréé.
Sous réserve des besoins liés à sa mise en œuvre ou d’une autorisation expresse prévue aux termes d’une licence distincte, aucune
partie de la présente publication de l’ISO ne peut être reproduite, distribuée, modifiée, utilisée ou mise à disposition sous quelque
forme ou par quelque moyen que ce soit – électronique ou mécanique, y compris la photocopie, la numérisation, l’enregistrement
ou la publication sur des plateformes numériques internes ou externes.
Toute utilisation hors du champ d’application des droits accordés est interdite et peut donner lieu à des poursuites judiciaires.
ISO copyright office
Case postale 401 • CH-1214 Vernier, Genève
Tél.: [phone]
E-mail: [e-mail]
Web: www.iso.org
Publié en Suisse
ii
ISO 11117:2019/Amd.1:2026(fr)
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 https://www.iso.org/directives).
L'attention est appelée sur le fait que certains des éléments du présent document peuvent faire l'objet
de droits de brevet. L'ISO ne saurait être tenue pour responsable de ne pas avoir identifié de tels droits
de brevet. Les détails concernant les références aux droits de brevet identifiés lors de l'élaboration du
document sont indiqués dans l'Introduction et/ou dans la liste des déclarations de brevets reçues par l'ISO
(voir www.iso.org/brevets).
Les appellations commerciales éventuellement mentionnées dans le présent document sont données pour
information, par souci de commodité, à l'intention des utilisateurs et ne sauraient constituer un engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion de
l'ISO aux principes de l'Organisation mondiale du commerce (OMC) concernant les obstacles techniques au
commerce (OTC), voir le lien suivant: www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 58, Bouteilles à gaz, sous-comité SC 2,
Accessoires de bouteilles, en collaboration avec le comité technique CEN/TC 23, Bouteilles à gaz transportables
du Comité européen de normalisation (CEN), conformément à l'Accord de coopération technique entre l'ISO
et le CEN (Accord de Vienne).
Il convient que l'utilisateur adresse to
...