Gas cylinders - Non-refillable metallic gas cylinders - Specification and test methods (ISO 11118:2015)

Will specify minimum requirements for the material, design, construction and workmanship, manufacturing processes and tests at manufacture of non-refillable metallic gas cylinders of welded, brazed or seamless construction for compressed, liquefied and dissolved gases exposed to extreme worldwide ambient temperatures.

Gasflaschen - Metallische Einwegflaschen - Spezifikation und Prüfmethoden (ISO 11118:2015)

Diese Internationale Norm legt Mindestanforderungen bezüglich Werkstoff, Auslegung, Inspektionen, Bau und Ausführung, Herstellungsprozesse und Herstellungsprüfungen von geschweißten, hartgelöteten oder nahtlosen metallischen Einwegflaschen für verdichtete, verflüssigte und unter Druck gelöste Gase, welche extremen weltweiten Umgebungstemperaturen ausgesetzt werden, fest.
ANMERKUNG      Die spezifischen Gase, welche in nach dieser Norm konstruierte Flaschen gefüllt werden dürfen, können durch Nationale oder Internationale Anforderungen begrenzt werden.
Diese Internationale Norm ist für Flaschen anwendbar, bei denen:
a)   der maximal zulässige Arbeitsdruck 250 bar (d. h. pms  250 bar) nicht überschreitet; und
b)   das Produkt aus maximal zulässigem Arbeitsdruck und Fassungsraum 1000 bar l (d. h. pms  * V  1000 bar l) nicht überschreitet; und
c)   der Fassungsraum 5 l nicht überschreitet, sofern der maximal zulässige Arbeitsdruck 35 bar überschreitet (d. h. für pms > 35 bar, folgt V  5 l).
Diese Internationale Norm ist nicht für Flaschen anwendbar, die diese Druck- und Volumengrenzen überschreiten. Für diese Flaschen kann auf Normen für wiederbefüllbare Flaschen verwiesen werden.
Diese Internationale Norm ist ebenfalls nicht für Kartuschen/Druckgaspackungen  und Kugelbehälter anwendbar.

Bouteilles à gaz - Bouteilles à gaz métalliques non rechargeables - Spécifications et méthodes d'essai (ISO 11118:2015)

ISO 11118:2015 spécifie les exigences minimales applicables aux matériaux, à la conception, aux contrôles, à la fabrication et à la qualité d'exécution ainsi qu'aux procédés de fabrication et aux essais chez le fabricant de bouteilles à gaz métalliques non rechargeables, soudées, brasées ou sans soudure, utilisées pour les gaz comprimés et liquéfiés, y compris les exigences pour leurs dispositifs d'étanchéité non réutilisables et leur méthode d'essai.
NOTE          Les gaz spécifiques autorisés pour les bouteilles non rechargeables construites en conformité avec la présente Norme internationale peuvent être limités par des exigences nationales ou internationales.
La présente Norme internationale est applicable aux bouteilles non rechargeables dont:
a)    la pression d'épreuve ne dépasse pas 250 bar (c'est-à-dire ph ≤ 250 bar) pour les gaz liquéfiés et 450 bar pour les gaz comprimés;
b)    le produit de la pression d'épreuve par la contenance en eau ne dépasse pas 1 000 bar·litres (soit ph V ≤ 1 000 bar l);
c)    la pression d'épreuve dépasse 45 bar et la contenance en eau ne dépasse pas 5 l (c'est-à-dire que pour ph > 45 bar, alors V ≤ 5 l).

Plinske jeklenke - Kovinske plinske jeklenke za enkratno polnitev - Specifikacija in preskusne metode (ISO 11118:2015)

Standard določa minimalne zahteve za material, konstruiranje, izdelavo in izvedbo, postopke izdelave in preskuse ob času proizvodnje varjenih, trdo spajkanih ali nevarjenih kovinskih plinskih jeklenk za enkratno polnitev za stisnjene, utekočinjene in raztopljene pline, izpostavljene ekstremnim temperaturam po vsem svetu.

General Information

Status
Published
Public Enquiry End Date
25-Mar-2010
Publication Date
21-Dec-2015
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
10-Dec-2015
Due Date
14-Feb-2016
Completion Date
22-Dec-2015

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11118:2016
01-februar-2016
1DGRPHãþD
SIST EN 12205:2002
SIST EN ISO 13340:2002
Plinske jeklenke - Kovinske plinske jeklenke za enkratno polnitev - Specifikacija in
preskusne metode (ISO 11118:2015)
Gas cylinders - Non-refillable metallic gas cylinders - Specification and test methods
(ISO 11118:2015)
Gasflaschen - Metallische Einwegflaschen - Spezifikation und Prüfmethoden (ISO
11118:2015)
Bouteilles à gaz - Bouteilles à gaz métalliques non rechargeables - Spécifications et
méthodes d'essai (ISO 11118:2015)
Ta slovenski standard je istoveten z: EN ISO 11118:2015
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
SIST EN ISO 11118:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11118:2016

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SIST EN ISO 11118:2016


EN ISO 11118
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2015
EUROPÄISCHE NORM
ICS 23.020.30 Supersedes EN ISO 13340:2001
English Version

Gas cylinders - Non-refillable metallic gas cylinders -
Specification and test methods (ISO 11118:2015)
Bouteilles à gaz - Bouteilles à gaz métalliques non Gasflaschen - Metallische Einwegflaschen -
rechargeables - Spécifications et méthodes d'essai (ISO Festlegungen und Prüfverfahren (ISO 11118:2015)
11118:2015)
This European Standard was approved by CEN on 22 August 2015.

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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11118:2015 E
worldwide for CEN national Members.

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SIST EN ISO 11118:2016
EN ISO 11118:2015 (E)
Contents Page
European foreword . 3
2

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SIST EN ISO 11118:2016
EN ISO 11118:2015 (E)
European foreword
This document (EN ISO 11118:2015) has been prepared by Technical Committee ISO/TC 58 "Gas
cylinders" in collaboration with the Technical Committee CEN/TC 23 “Transportable gas cylinders” the
secretariat of which is held by BSI.
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 April 2016, and conflicting national standards shall be
withdrawn at the latest by April 2016.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 13340:2001.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 11118:2015 has been approved by CEN as EN ISO 11118:2015 without any modification.

3

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SIST EN ISO 11118:2016

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SIST EN ISO 11118:2016
INTERNATIONAL ISO
STANDARD 11118
Second edition
2015-09-15
Gas cylinders — Non-refillable
metallic gas cylinders — Specification
and test methods
Bouteilles à gaz — Bouteilles à gaz métalliques non rechargeables —
Spécifications et méthodes d’essai
Reference number
ISO 11118:2015(E)
©
ISO 2015

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SIST EN ISO 11118:2016
ISO 11118:2015(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved

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SIST EN ISO 11118:2016
ISO 11118:2015(E)

Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols . 3
5 Materials . 3
5.1 General requirements . 3
5.2 Material types . 4
5.2.1 Carbon and low-alloy steels . 4
5.2.2 Aluminium and aluminium alloy . 4
5.2.3 Austenitic stainless steels . 4
5.3 Chemical compositions . 5
5.3.1 Carbon and low-alloy steels . 5
5.3.2 Aluminium and aluminium alloys . 5
6 Inspection and testing . 6
7 Design . 6
7.1 General requirements . 6
7.2 Calculation of pressure containing parts . 6
7.3 Design drawings . 7
8 Construction and workmanship . 7
8.1 Construction . 7
8.1.1 Types of construction of cylinder shell . 7
8.1.2 Cylinder non-refillability.11
8.1.3 Pressure relief devices .11
8.2 Workmanship .11
9 Type approval procedure .12
9.1 General requirements .12
9.2 Prototype tests .12
9.2.1 General.12
9.2.2 Material tests . .12
9.2.3 Tensile tests .13
9.2.4 Burst tests .13
9.2.5 Drop tests .15
9.2.6 Dimension checks .16
9.2.7 Valve to cylinder interface test .16
9.3 Design type approval .16
10 Batch tests .17
10.1 General requirements .17
10.2 Failure to meet test requirements .17
11 Tests on every cylinder .17
12 Markings .18
12.1 General .18
12.2 Manufacturing and operational markings .18
12.3 Other markings .19
13 Test reports and certificate of compliance .19
Annex A (normative) Non-refillable sealing devices — Specifications and prototype testing .20
Annex B (informative) Type approval certificate .26
© ISO 2015 – All rights reserved iii

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SIST EN ISO 11118:2016
ISO 11118:2015(E)

Annex C (informative) Certificate of compliance .28
Annex D (informative) Yield point elongation (YPE) .30
Bibliography .33
iv © ISO 2015 – All rights reserved

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SIST EN ISO 11118:2016
ISO 11118:2015(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 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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary Information
The committee responsible for this document is ISO/TC 58, Gas cylinders, Subcommittee SC 3,
Cylinder design.
This second edition cancels and replaces the first edition (ISO 11118:1999) and ISO 13340:2001, which
have been technically revised with the following changes:
— removed references to dissolved gases from the Scope;
— the edition aligns ISO 11118 and EN 12205;
— incorporates ISO 13340 in ISO 11118;
— incorporated new titles of ISO referenced documents;
— incorporated definitions and use of R , R , R , and R ;
ea eg ma mg
— clarified requirements for the processing of carbon steel to avoid strain aging;
— added pierceable metal membranes to cylinder non-refillability;
— added test requirement for aluminium materials for intercrystalline corrosion for seamless and
welded aluminium cylinders;
— included alternative temperatures for artificial aging of carbon steel cylinder prior to burst testing;
— modified markings to align with UN requirements;
— clarified inspection criteria for each cylinder;
— corrected references to correct Annexes;
— modified burst pressure to align with other ISO Standards;
— aligned test pressure requirement of non-refillable sealing device to the same as the cylinder;
© ISO 2015 – All rights reserved v

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SIST EN ISO 11118:2016
ISO 11118:2015(E)

— modified Annex B for completeness;
— deleted existing Annex C since it was not needed and inserted a new Annex C for accuracy;
— added new informative Annex D for informational purposes on yield point elongation (YPE).
vi © ISO 2015 – All rights reserved

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SIST EN ISO 11118:2016
ISO 11118:2015(E)

Introduction
This International Standard addresses the general requirements on design, construction, and initial
inspection and testing of non-refillable metallic gas cylinders and their non-refillable sealing devices of the
United Nations Recommendations on the Transport of Dangerous Goods: Model Regulations. The purpose
of this International Standard is to provide a specification for the design, manufacture, inspection, and
testing of non-refillable metallic gas cylinders for worldwide safe use, handling, and transport.
The objective is to balance design and economic efficiency against international acceptance and
universal utility.
This International Standard aims to eliminate the concern about climate, duplicate inspections, and
restrictions currently existing because of lack of definitive International Standards. This International
Standard does not reflect on the suitability of the practice of any nation or region.
© ISO 2015 – All rights reserved vii

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SIST EN ISO 11118:2016

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SIST EN ISO 11118:2016
INTERNATIONAL STANDARD ISO 11118:2015(E)
Gas cylinders — Non-refillable metallic gas cylinders —
Specification and test methods
1 Scope
This International Standard specifies minimum requirements for the material, design, inspections,
construction and workmanship, manufacturing processes, and tests at manufacture of non-refillable
metallic gas cylinders of welded, brazed, or seamless construction for compressed and liquefied gases
including the requirements for their non-refillable sealing devices and their methods of testing.
NOTE The specific gases permitted in cylinders constructed to this International Standard can be limited by
national or international requirements.
This International Standard is applicable to cylinders where
a) the test pressure does not exceed 250 bar (i.e. p ≤ 250 bar) for liquefied gases and 450 bar for
h
compressed gases;
b) the product of the test pressure and the water capacity does not exceed 1 000 bar·litres (i.e.
p V ≤ 1 000 bar L);
h
c) the test pressure exceeds 45 bar and the water capacity does not exceed 5 l (i.e. for p > 45 bar,
h
then V ≤ 5 l).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 3651-2, Determination of resistance to intergranular corrosion of stainless steels — Part 2: Ferritic,
austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing sulfuric acid
ISO 4706:2008, Gas cylinders — Refillable welded steel cylinders — Test pressure 60 bar and below
ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
ISO 7866:2012, Gas cylinders — Refillable seamless aluminium alloy gas cylinders — Design,
construction and testing
ISO 9329-1, Seamless steel tubes for pressure purposes — Technical delivery conditions — Part 1: Unalloyed
steels with specified room temperature properties
ISO 9606-1, Qualification testing of welders — Fusion welding — Part 1: Steels
ISO 9809-1:2010, Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and
testing — Part 1: Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa
ISO 9809-4:2014, Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and
testing — Part 4: Stainless steel cylinders with an Rm value of less than 1 100 MPa
ISO 10156, Gases and gas mixtures — Determination of fire potential and oxidizing ability for the selection
of cylinder valve outlets
ISO 10297, Gas cylinders — Cylinder valves — Specification and type testing
© ISO 2015 – All rights reserved 1

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SIST EN ISO 11118:2016
ISO 11118:2015(E)

ISO 11114-1, Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 1:
Metallic materials
ISO 11114-2, Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 2:
Non-metallic materials
ISO 15613, Specification and qualification of welding procedures for metallic materials — Qualification
based on pre-production welding test
ISO 15614-1, Specification and qualification of welding procedures for metallic materials — Welding
procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
ISO 20703:2006, Gas cylinders — Refillable welded aluminium-alloy cylinders — Design, construction and
testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
batch
quantity of completed and pressure tested cylinders made consecutively by the same manufacturer
using the same manufacturing techniques to the same design, size, and material specifications using
the same type of welding machines (when applicable), welding procedures (when applicable), and to the
same heat treatment conditions (when applicable)
Note 1 to entry: See Clause 10 for details.
3.2
cylindrical shell
portion of the cylinder excluding the cylinder ends which is parallel to the centreline axis of the cylinder
3.3
cylinder shell
empty cylinder before affixing the non-refillable sealing device (3.12), but including all other
permanent attachments
3.4
material certificate
document issued by the material manufacturer which certifies the chemical analysis, mechanical
properties, heat treatment, processing techniques, or other properties/features if required
3.5
burst pressure
highest pressure reached in a cylinder during the burst test
3.6
test pressure
required pressure applied during the pressure test
3.7
working pressure
settled pressure of compressed gas at a uniform reference temperature of 15 °C (288 K) in a full gas
cylinder
3.8
minimum operating temperature
minimum ambient temperature to which the cylinder contents can be exposed, but not exceeding −20 °C
Note 1 to entry: See 5.1.6.
2 © ISO 2015 – All rights reserved

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SIST EN ISO 11118:2016
ISO 11118:2015(E)

3.9
non-refillable cylinder
cylinder including a non-refillable sealing device (3.12) that permits the cylinder to be filled only once
Note 1 to entry: Where there is no risk of ambiguity, the short abbreviated form “cylinder” is used in this
International Standard.
3.10
water capacity
volume of water required to completely fill an empty cylinder
3.11
processor
facility that anneals, rolls, slits, or otherwise, changes the material from the form received from the
location where the steel was melted
3.12
non-refillable sealing device
device permanently attached to the cylinder which, once activated, prevents the cylinder from
being refilled
4 Symbols
a calculated minimum thickness, in millimetres, of the cylindrical shell
D nominal outside diameter of the cylinder, in millimetres
F design stress factor (variable)
P burst pressure of the cylinder, in bar
b
p test pressure, in bar above atmospheric pressure
h
p working pressure, in bar above atmospheric pressure
w
p non-refillable sealing device test pressure, in bar above atmospheric pressure
vt
R actual value of the yield strength, in megapascals, of the cylinder when tested
ea
R minimum guaranteed value of the yield strength, in megapascals, for the finished cylinder
eg
R actual value of the tensile strength, in megapascals, of the cylinder when tested
ma
R minimum guaranteed value of the tensile strength, in megapascals, for the finished cylinder
mg
V water capacity of the cylinder, in litres
5 Materials
5.1 General requirements
5.1.1 Cylinder shells shall be made of carbon or low alloy steels, austenitic stainless steel, aluminium,
or aluminium alloys. The materials used shall be specified by type (see 5.2) and chemical composition
(see 5.3). Materials shall not contain seams, cracks, laminations, or other injurious defects. For material
requirements of non-refillable sealing devices, see Annex A.
5.1.2 The cylinder manufacturer shall specify the chemical and mechanical requirements to the
material supplier.
© ISO 2015 – All rights reserved 3

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SIST EN ISO 11118:2016
ISO 11118:2015(E)

5.1.3 The cylinder manufacturer shall obtain a material certificate from the manufacturer/processor
of the material certifying the chemical analysis of the cast. The certificate shall be issued by the
manufacturer of the material and shall confirm compliance to the material specification.
5.1.4 The cylinder manufacturer shall verify that the materials are in accordance with the cylinder
manufacturer specifications.
5.1.5 All materials used in the construction of the pressure containing parts of the cylinder shall
be traceable.
5.1.6 All materials shall be suitable for use at the minimum operating temperature or at –20 °C,
whichever is the lower.
5.1.7 The materials used for manufacture of the cylinder shell shall be compatible with the intended
gas service as specified in ISO 11114-1 or ISO 11114-2.
5.1.8 Contact between dissimilar metals which could result in damage by galvanic corrosion shall be
avoided.
5.2 Material types
5.2.1 Carbon and low-alloy steels
5.2.1.1 The steel used for the fabrication of gas cylinder shells shall be made in an electric furnace
or, by the basic oxygen process, shall have non-ageing properties and shall be fully killed by aluminium
and/or silicon.
5.2.1.2 Carbon steel for cold deep drawn seamless, welded, or brazed cylinder shells shall have non-
ageing properties, processed free of stretcher strain, and shall be fully killed with aluminium and/or
silicon. The chemical composition shall meet the requirements of 5.3.1.1.
5.2.1.3 Carbon steel for other welded cylinder shells shall have a chemical composition which meets
the requirements of 5.3.1.2. The maximum tensile strength shall not exceed 700 MPa.
5.2.1.4 Carbon steel for cylinder she
...

SLOVENSKI STANDARD
oSIST prEN ISO 11118:2010
01-marec-2010
Plinske jeklenke - Kovinske jeklenke za enkratno polnitev - Specifikacije in
preskusne metode (ISO/DIS 11118:2009)
Gas cylinders - Non-refillable metallic gas cylinders - Specification and test methods
(ISO/DIS 11118:2009)
Gasflaschen - Metallische Einwegflaschen - Spezifikation und Prüfmethoden (ISO/DIS
11118:2009)
Bouteilles à gaz - Bouteilles à gaz métalliques non rechargeables - Spécifications et
méthodes d'essai (ISO/DIS 11118:2009)
Ta slovenski standard je istoveten z: prEN ISO 11118
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
oSIST prEN ISO 11118:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 11118:2010

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oSIST prEN ISO 11118:2010


EUROPEAN STANDARD
DRAFT
prEN ISO 11118
NORME EUROPÉENNE

EUROPÄISCHE NORM

November 2009
ICS 23.020.30
English Version
Gas cylinders - Non-refillable metallic gas cylinders -
Specification and test methods (ISO/DIS 11118:2009)
Bouteilles à gaz - Bouteilles à gaz métalliques non Gasflaschen - Metallische Einwegflaschen - Spezifikation
rechargeables - Spécifications et méthodes d'essai und Prüfmethoden (ISO/DIS 11118:2009)
(ISO/DIS 11118:2009)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 23.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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 CEN Management Centre has the
same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

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 supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 11118:2009: E
worldwide for CEN national Members.

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oSIST prEN ISO 11118:2010
prEN ISO 11118:2009 (E)
Contents Page
Foreword .3

2

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oSIST prEN ISO 11118:2010
prEN ISO 11118:2009 (E)
Foreword
This document (prEN ISO 11118:2009) has been prepared by Technical Committee ISO/TC 58 "Gas
cylinders" in collaboration with the Technical Committee CEN/TC 23 “Transportable gas cylinders” the
secretariat of which is held by BSI.
This document is currently submitted to the parallel Enquiry.
Endorsement notice
The text of ISO/DIS 11118:2009 has been approved by CEN as a prEN ISO 11118:2009 without any
modification.

3

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oSIST prEN ISO 11118:2010

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oSIST prEN ISO 11118:2010
DRAFT INTERNATIONAL STANDARD ISO/DIS 11118
ISO/TC 58/SC 3 Secretariat: BSI
Voting begins on: Voting terminates on:
2009-11-26 2010-04-26
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Gas cylinders — Non-refillable metallic gas cylinders —
Specification and test methods
Bouteilles à gaz — Bouteilles à gaz métalliques non rechargeables — Spécifications et méthodes d'essai
[Revision of first edition (ISO 11118:1999)]
ICS 23.020.30

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©
International Organization for Standardization, 2009

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oSIST prEN ISO 11118:2010
ISO/DIS 11118
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oSIST prEN ISO 11118:2010
ISO/DIS 11118
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Terms, definitions and symbols .2
4 Symbols.4
5 Materials .4
6 Inspection and testing .7
7 Design.7
8 Construction and workmanship .8
9 Type approval procedure.13
10 Batch tests .18
11 Tests on every cylinder – Pressure and leak tests.18
12 Markings.19
13 Certificate of Design.20
14 Certificate of Compliance .20
Annex A (Informative) New Design Type Approval Certificate.22
Annex B TYPE APPROVAL TEST DATA .23
Annex C (Informative) Certificate of Compliance.25
Bibliography.27

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oSIST prEN ISO 11118:2010
ISO/DIS 11118
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. 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.
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.
ISO 11118 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 3, Cylinder
design.
This second edition cancels and replaces the first edition (ISO 11118:1999), which has been technically
revised.
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oSIST prEN ISO 11118:2010
ISO/DIS 11118
Introduction
The purpose of this International Standard is to provide a specification for the design, manufacture, inspection and
testing of non-refillable metallic gas cylinders for worldwide usage. The objective is to balance design and
economic efficiency against international acceptance and universal utility.
This International Standard aims to eliminate the concern about climate, duplicate inspections and restrictions
currently existing because of lack of definitive International Standards. This International Standard should not be
considered as reflecting on the suitability of the practice of any nation or region.

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oSIST prEN ISO 11118:2010

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oSIST prEN ISO 11118:2010
DRAFT INTERNATIONAL STANDARD ISO/DIS 11118

Gas cylinders — Non-refillable metallic gas cylinders —
Specification and test methods
1 Scope
This International Standard specifies minimum requirements for the material, design, inspections, construction
and workmanship, manufacturing processes and tests at manufacture of non-refillable metallic gas cylinders
of welded, brazed or seamless construction for compressed, liquefied and dissolved gases exposed to
extreme worldwide ambient temperatures
NOTE The specific gases permitted in cylinders constructed to this standard may be limited by National or
International requirements.
This International Standard is applicable to cylinders where:
a) the maximum permissible operating pressure does not exceed 250 bar (i.e. p ≤ 250 bar); and
ms
b)  the product at the maximum permissible operating pressure and the water capacity does not exceed
.
1 000 bar litres (i.e. p . V ≤ 1 000 bar. L ); and
ms

c)  where the maximum permissible operating pressure exceeds 35 bar, the water capacity does not exceed
5 l (i.e. for p > 35 bar, then V ≤ 5 l).
ms
This International Standard is not applicable to cylinders exceeding these pressure and volume limits for
which reference may be made to refillable cylinder standards.
1)
This International Standard is also not applicable to cartridges/aerosol dispensers and spherical containers.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 3166-1, Codes for the representation of names of countries and their subdivisions — Part 1: Country
codes
ISO 3574: 1986, Cold reduced carbon steel of commercial and drawing qualities
ISO 3807-1, Cylinders for acetylene — Basic requirements — Part 1: Cylinders without fusible plugs
ISO 3807-2, Cylinders for acetylene — Basic requirements — Part 2: Cylinders with fusible plugs

1)
Cartridges are non-refillable containers which do not contain an integral dispensing device, have a maximum water
capacity of 1 litre and have a limited maximum permissible operating pressure (as defined by the country of use). Aerosol
dispensers are non-refillable thin walled containers which do contain an integral dispensing device, have a maximum
water capacity of 1 litre and have a limited maximum permissible operating pressure (as defined by the country of use).
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oSIST prEN ISO 11118:2010
ISO/DIS 11118
ISO 4706-1, Gas cylinders — Refillable welded steel cylinders — Part 1: Test pressure 60 bar and below
ISO 6892, Metallic materials — Tensile testing at ambient temperature
ISO 7866, Refillable transportable seamless aluminium alloy gas cylinders for worldwide usage — Design,
construction and testing
ISO 9328-5, Steel plates and strip for pressure purposes — Technical delivery conditions — Part 5: Austenitic
steels
ISO 9606-1, Approval testing of welders — Fusion welding — Part 1: Steels
ISO 9809-1, Gas cylinders – Refillable seamless steel gas cylinders – Design, construction and testing — Part
1: Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa
ISO 9809-2, Gas cylinders – Refillable seamless steel cylinders – Design, construction and testing — Part 2:
Quenched and tempered steel cylinders with tensile strength greater than or equal to 1100 MPa
ISO 11114-1, Transportable gas cylinders — Compatibility of cylinder and valve materials with gas contents
— Part 1: Metallic materials
ISO 13340, Transportable gas cylinders – Cylinder valves for non-refillable cylinders – Specifications and
prototype testing
ISO 15613, Specification and qualification of welding procedures for metallic materials – Qualifications based
on pre-production welding tests
ISO 15614-1, Specification and qualification of welding procedures for metallic materials – Welding procedure
test – Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
3 Terms, definitions and symbols
For the purposes of this International Standard, the following terms and definitions apply:
3.1
batch
quantity of completed and pressure tested cylinders made consecutively by the same manufacturer using the
same manufacturing techniques, to the same design, size and material specifications using the same type of
welding machines (when applicable), welding procedures (when applicable) and to the same heat treatment
conditions (when applicable)
3.2
cylindrical shell
portion of the cylinder, excluding the heads (ends), which is parallel to the centreline axis of the cylinder
3.3
heads (ends)
portions of the cylinder which are not parallel to the centreline axis of the cylinder
3.4
material certificate
document, issued by the material manufacturer, which states the chemical analysis, mechanical properties,
heat treatment, processing techniques or other properties/features if required
3.5
burst pressure
highest pressure reached in a cylinder during the burst test
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oSIST prEN ISO 11118:2010
ISO/DIS 11118
3.6
maximum permissible operating pressure
highest pressure permitted to be developed during service but not to exceed the maximum developed
pressure at 65 °C for a fully charged cylinder
3.7
test pressure
required pressure applied during the pressure test
3.8
working pressure
settled pressure of permanent gas at a uniform temperature of 15 °C (288 K)
3.9
maximum operating temperature
maximum ambient temperature to which the cylinder contents can be exposed in the country of use but not
exceeding 65 °C for a fully charged cylinder
3.10
minimum operating temperature
minimum ambient temperature to which the cylinder contents can be exposed in the country of use
3.11
non-refillable cylinder
cylinder which may be filled only once
3.12
water capacity
capacity of the empty cylinder when filled with water
3.13
processor
facility that anneals, rolls, slits or otherwise changes the material from the form received from the location
where the steel was melted
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oSIST prEN ISO 11118:2010
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4 Symbols
a calculated minimum thickness, in millimetres, of the cylindrical shell
D nominal outside diameter of the cylinder, in millimetres
F design stress factor (variable)
2)
p test pressure, in bar above atmospheric pressure
h
p maximum permissible operating pressure, in bar above atmospheric pressure
ms
R minimum guaranteed value of yield strength in megapascals, for the finished cylinder
e
R minimum guaranteed value of the tensile strength, in megapascals, for the finished cylinder
g
V water capacity of the cylinder, in litres
5 Materials
5.1 General requirements
5.1.1  Non-refillable gas cylinders shall be made of carbon or low alloy steels, austenitic stainless steel,
aluminium or aluminium alloys. The materials used shall be specified by type (see 5.2) and chemical composition
(see 5.3). Materials shall not contain seams, cracks, laminations or other injurious defects.
5.1.2  The cylinder manufacturer shall specify the chemical and mechanical requirements to the material
supplier.
5.1.3  The cylinder manufacturer shall obtain a Material Certificate from the manufacturer/processor of the
material. The certificate shall be issued by the manufacturer of the material, and shall confirm compliance to
the material specification.
5.1.4  The cylinder manufacturer shall verify that the materials are in accordance with the cylinder
manufacturers specifications.
5.1.5  All materials used in the construction of the pressure containing parts of the cylinder shall be identified
by the cast number/code.
5.1.6  All materials shall be suitable for use at the minimum operating temperature or - 20 °C, whichever is the
lower.
5.1.7  The material used for cylinder manufacture shall be compatible with the intended gas service (e.g.
corrosive gases, embrittling gases), as specified in ISO 11114-1.
5.1.8  Cylinders for service with dissolved acetylene shall incorporate an appropriate porous material. The
completed cylinder containing the porous material shall meet the requirements of ISO 3807-1 or -2.

5
2)
1 bar = 10 Pa = 0,1 MPa.

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oSIST prEN ISO 11118:2010
ISO/DIS 11118
5.2 Type
5.2.1 Carbon and low-alloy steels
5.2.1.1  The steel used for the fabrication of gas cylinders shall be made in an electric furnace or by the basic
oxygen process, shall have non-ageing properties and shall be killed by aluminium or silicon.
5.2.1.2  Carbon steel for cold deep drawn welded or brazed cylinders shall be in accordance with Table 1 of
ISO 3574:1986, having non-ageing properties, drawing quality, processed free of stretcher strain and shall
have an aluminium content in excess of 0,01% when aluminium is used for killing and 0,012% when silicon is
used for killing. The chemical composition shall meet the requirements of 5.3.1.1.
5.2.1.3  Carbon steel for other welded cylinders shall have a chemical composition which meets the
requirements of 5.3.1.2. The maximum tensile strength shall not exceed 700 MPa.
5.2.1.4  Carbon steel for cylinders made from seamless steel tubing with integrally formed ends, hot drawn
and finished shall have a chemical composition which meets the requirements of 5.3.1.3.
5.2.1.5  Low alloy steels shall conform to ISO 4706-1, ISO 9809-1or ISO 9809-2.
5.2.2 Aluminium and aluminium alloy
5.2.2.1  Aluminium alloys with a tensile strength greater than 500 MPa shall not be used.
5.2.2.2  Aluminium and aluminium alloys shall have a chemical composition which meets the requirements of
5.3.2.
5.2.2.3  Aluminium and aluminium alloys used for seamless cylinders shall conform with the material
requirements of ISO 7866.
5.2.3 Austenitic stainless steels
5.2.3.1  For austenitic stainless steels, the maximum tensile strength shall not exceed 800 MPa.
5.2.3.2  The cylinder manufacturer shall take into consideration the loss of material strength within the heat
affected zone of any weld.
5.2.3.3  Austenitic stainless steels for all types of cylinder shall conform to ISO 9328-5.
5.2.3.4  The chemical composition shall meet the requirements of 5.3.3.
NOTE 1 There is a risk of sensitization to inter-granular corrosion resulting from hot working/welding of certain
stainless steels. In such cases consideration should be given to carrying out an inter-granular corrosion test, for example
as specified in ISO 3651-2.
NOTE 2 Some grades of stainless steels can be susceptible to environmental stress corrosion cracking. Special
precautions should be taken in such cases.
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oSIST prEN ISO 11118:2010
ISO/DIS 11118
5.3 Chemical compositions
5.3.1 Carbon and low-alloy steels
5.3.1.1  Carbon steels in accordance with Table 1 of ISO 3574: 1986, having non-aging properties, drawing
quality for cold deep drawn welded or brazed cylinders shall have the following chemical composition limits, in
(m/m):
Carbon ≤ 0,12
Manganese ≤ 0,50
Phosphorus ≤ 0,025
Sulfur ≤ 0,025

5.3.1.2  Carbon steel for welded cylinders other than cold deep drawn shall have the following chemical
composition limits, in (m/m):
Carbon ≤ 0,25
Manganese ≤ 0,50
Phosphorus ≤ 0,025
Sulfur ≤ 0,025

5.3.1.3  Carbon steel for cylinders made of seamless steel tubing with integrally formed ends, hot drawn and
finished shall have the following chemical composition limits, in (m/m):
Carbon ≤ 0,55
Manganese ≤ 1,6
Phosphorus ≤ 0,025
Sulfur ≤ 0,025

5.3.1.4  Low alloy steels shall conform to 5.2.1.5.
5.3.2 Aluminium and aluminium alloys
Aluminium and aluminium alloys may be used to produce gas cylinders provided that they meet all the
requirements of this International Standard and have maximum lead and bismuth contents not exceeding 0,003 %
each.
NOTE A list of registered alloys is maintained by the Aluminium Association Inc. entitled Registration Record of
International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys.
5.3.3 Austenitic stainless steels
Austenitic stainless steel shall conform to ISO 9328-5.
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oSIST prEN ISO 11118:2010
ISO/DIS 11118
6 Inspection and testing
Evaluation of conformity is required to be performed in accordance with the relevant regulations of the
country(ies) where the cylinders are to be used. To ensure that the cylinders are in compliance with this
International Standard they shall be subject to inspection and testing in accordance with clauses 8, 9 and 10
by an authorized inspection authority (hereafter referred to as ‘the inspector’) recognized in the countries of
use. The inspector shall be competent for inspection of cylinders.
7 Design
7.1 General requirements
7.1.1  The calculation of the cylindrical wall thickness of the pressure containing parts shall be related to the
yield strength R ).
e
7.1.2  The relationship between the working pressure, maximum permissible operating pressure and the test
pressure shall be in accordance with the applicable regulation (ie; UN).
7.1.3  The design of the heads shall be such that the pressure containing parts when subjected to the test
pressure (p ) shall not show any permanent visible deformation.
h
7.2 Calculation of pressure containing parts
The minimum thickness of the cylindrical shell of the pressure containing parts shall not be less than any of
the three values determined in a), b) or c) below:
a) The minimum thickness of the cylindrical shell shall be not less than that necessary for the minimum burst
pressure to be greater than 1,6 times the test pressure (p ) and such that the requirements of 9.2.4.5 and 11
h
are met.
b) The minimum thickness of the cylindrical shell shall not be less than that calculated by the Lamé - von Mises
formula as follows:
 
 
10 - 3 p
D
FRe
h
  
a =  1 -
 
2 10
 
FR
e
 
 
where F = 0,85
c) The minimum thickness of the cylindrical shell shall not be less than that calculated using one of the
following formulae:
for steel
D
a= + 0,4
650
for aluminium and aluminium alloys
D
a= + 0,5
650
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oSIST prEN ISO 11118:2010
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7.3 Design drawings
A fully dimensioned drawing of the cylinder shall be supplied which includes as a minimum:
a) material specifications, including R and R (MPa);
e g
b) test pressure (bar);
c) minimum burst pressure (bar);
d) minimum thickness of the cylindrical shell (mm);
e) minimum water capacity (litre) (for cylinders ≤2 l, the water capacity may be reported in ml);
f) nominal cylinder outside diameter (mm);
g) dimensions of heads (mm);
h) overall length of the cylinder (mm);
i) heat treatment (if any);
j) method of construction;
k) welding/brazing procedure designation;
l) specifications for valve outlet connection or cylinder threaded connection for use;
m) cylinder design identification and approval number;
n) design standard (i.e. ISO 11118);
o) date and re
...

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