Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes - Periodic inspection and testing (ISO 18119:2018)

This International Standard is applicable to seamless steel and aluminium-alloy transportable gas cylinders
(single or those that comprise a bundle) intended for compressed and liquefied gases under pressure, of
water capacity from 0,5 l up to 150 l. It also applies, as far as practical, to cylinders of less than 0,5 l water
capacity and greater than 150 l.
This International Standard specifies the requirements for periodic inspection and testing to verify the integrity
of such gas cylinders to be re-introduced into service for a further period of time.
This International Standard does not apply to periodic inspection and maintenance of acetylene cylinders or to
the periodic inspection and testing of composite cylinders.

Gasflaschen - Nahtlose Gasflaschen und Großflaschen aus Stahl und Aluminiumlegierungen - Wiederkehrende Inspektion und Prüfung (ISO 18119:2018)

Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en alliages d'aluminium, sans soudure - Contrôles et essais périodiques (ISO 18119:2018)

Le présent document spécifie les exigences en matière de contrôles et d'essais périodiques destinés à vérifier l'intégrité des bouteilles et tubes avant leur remise en service pour une nouvelle période d'utilisation.
Le présent document est applicable aux bouteilles à gaz transportables en acier et en alliages d'aluminium sans soudure (seules ou comprenant un cadre) prévues pour des gaz comprimés et liquéfiés sous pression, d'une contenance en eau de 0,5 l à 150 l, ainsi qu'aux tubes à gaz transportables, en acier et en alliages d'aluminium sans soudure (seuls ou comprenant un cadre) prévus pour des gaz comprimés et liquéfiés sous pression, d'une contenance en eau supérieure à 150 l. Dans la mesure du possible, il s'applique également aux bouteilles d'une contenance en eau inférieure à 0,5 l.
Le présent document ne s'applique pas au contrôle et à la maintenance périodiques des bouteilles d'acétylène ni aux contrôles et essais périodiques des bouteilles en matériaux composites.
NOTE       Sauf mention contraire, le terme «bouteille» désigne aussi bien une bouteille qu'un tube dans le présent document.

Plinske jeklenke - Plinske jeklenke in velike jeklenke iz celega iz jekla in aluminijevih zlitin - Periodični pregled in preskušanje (ISO 18119:2018)

Ta mednarodni standard se uporablja za prenosne nevarjene plinske jeklenke ter velike jeklenke iz jekla in aluminijevih zlitin (posamične ali v sklopu) za stisnjene in utekočinjene pline pod tlakom s prostornino vode od 0,5 l do 150 l. Uporablja se tudi za jeklenke s prostornino vode manj kot 0,5 l in več kot 150 l, če je to smotrno. Ta mednarodni standard določa zahteve za redne preglede in preskuse za namene preverjanja celovitosti tovrstnih plinskih jeklenk, predvidene za nadaljnjo vnovično uporabo. Ta mednarodni standard se ne uporablja za redne preglede in vzdrževanje jeklenk z acetilenom ali redne preglede in preskušanje kompozitnih jeklenk.

General Information

Status
Published
Public Enquiry End Date
29-Sep-2015
Publication Date
09-Dec-2018
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
21-Nov-2018
Due Date
26-Jan-2019
Completion Date
10-Dec-2018

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SLOVENSKI STANDARD
SIST EN ISO 18119:2019
01-januar-2019
Plinske jeklenke - Plinske jeklenke in velike jeklenke iz celega iz jekla in
aluminijevih zlitin - Periodični pregled in preskušanje (ISO 18119:2018)
Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes -
Periodic inspection and testing (ISO 18119:2018)
Gasflaschen - Nahtlose Gasflaschen und Großflaschen aus Stahl und
Aluminiumlegierungen - Wiederkehrende Inspektion und Prüfung (ISO 18119:2018)
Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en alliages d'aluminium, sans
soudure - Contrôles et essais périodiques (ISO 18119:2018)
Ta slovenski standard je istoveten z: EN ISO 18119:2018
ICS:
23.020.35 Plinske jeklenke Gas cylinders
77.150.10 Aluminijski izdelki Aluminium products
SIST EN ISO 18119:2019 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 18119:2019

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SIST EN ISO 18119:2019


EN ISO 18119
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2018
EUROPÄISCHE NORM
ICS 23.020.35
English Version

Gas cylinders - Seamless steel and seamless aluminium-
alloy gas cylinders and tubes - Periodic inspection and
testing (ISO 18119:2018)
Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en Gasflaschen - Nahtlose Gasflaschen und Großflaschen
alliages d'aluminium, sans soudure - Contrôles et aus Stahl und Aluminiumlegierungen -
essais périodiques (ISO 18119:2018) Wiederkehrende Inspektion und Prüfung (ISO
18119:2018)
This European Standard was approved by CEN on 17 May 2018.

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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18119:2018 E
worldwide for CEN national Members.

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (E)
European foreword
This document (EN ISO 18119:2018) has been prepared by Technical Committee ISO/TC 58 "Gas
cylinders" in collaboration with 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 2019, and conflicting national standards shall be
withdrawn at the latest by April 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 18119:2018 has been approved by CEN as EN ISO 18119:2018 without any modification.

3

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SIST EN ISO 18119:2019

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SIST EN ISO 18119:2019
INTERNATIONAL ISO
STANDARD 18119
First edition
2018-05
Gas cylinders — Seamless steel
and seamless aluminium-alloy gas
cylinders and tubes — Periodic
inspection and testing
Bouteilles à gaz — Bouteilles et tubes à gaz en acier et en alliages
d'aluminium, sans soudure — Contrôles et essais périodiques
Reference number
ISO 18119:2018(E)
©
ISO 2018

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SIST EN ISO 18119:2019
ISO 18119:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

---------------------- Page: 8 ----------------------
SIST EN ISO 18119:2019
ISO 18119:2018(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms and symbols . 2
5 Intervals between periodic inspections and tests . 3
6 List of procedures for periodic inspections and tests. 3
7 Identification of cylinder and preparation for inspection and tests .4
8 Depressurization and de-valving procedures . 4
8.1 General . 4
8.2 Cylinders requiring de-valving . 5
8.3 Cylinders not requiring de-valving . 5
8.4 Cylinders requiring shot blasting. 5
9 External visual inspection . 5
9.1 Preparation . 5
9.2 Inspection procedure . 6
10 Inspection of cylinder neck . 6
10.1 Cylinder-to-valve threads . 6
10.2 Other neck surfaces . 9
10.3 Damaged internal neck threads . 9
10.4 Neckring and collar attachment . 9
11 Check of internal condition . 9
11.1 General . 9
11.2 Internal visual inspection .10
11.2.1 Preparation .10
11.2.2 Inspection requirements.10
11.2.3 Cylinders with footrings .11
11.2.4 Cylinders with internal coatings .11
12 Supplementary tests .11
12.1 General .11
12.2 Additional test for seamless aluminium-alloy cylinders possibly subjected to heat
damage .11
12.3 Hammer test on cylinders with footrings .12
13 Cylinder repairs .12
14 Pressure test or UT .12
14.1 General .12
14.2 Proof pressure test .13
14.2.1 General.13
14.2.2 Test equipment .13
14.2.3 Test criteria .13
14.2.4 Acceptance criteria .14
14.3 Hydraulic volumetric expansion test .14
14.4 UT .14
14.4.1 General.14
14.4.2 Requirements .14
14.4.3 Calibration .19
14.4.4 Performing the examination .23
© ISO 2018 – All rights reserved iii

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SIST EN ISO 18119:2019
ISO 18119:2018(E)

14.4.5 Interpretation of results .24
14.4.6 Records .25
15 Inspection of valve and other accessories .25
16 Replacement of cylinder parts .26
17 Final operations .26
17.1 Drying, cleaning and painting .26
17.1.1 Drying and cleaning .26
17.1.2 Painting and coating .26
17.2 Re-valving of the cylinder .27
17.3 Check of cylinder tare .27
17.4 Retest marking .28
17.4.1 General.28
17.4.2 Stamping .28
17.5 Reference to next periodic inspection and test date .28
17.6 Identification of contents .28
17.7 Records .28
18 Rejection and rendering cylinder unserviceable .29
18.1 General .29
18.2 Cylinders with a valve attached .29
18.3 Cylinders with no valves attached .29
Annex A (informative) Periodic inspection and test periods .30
Annex B (normative) Description, evaluation of defects and conditions for rejection of
seamless steel and seamless aluminium-alloy cylinders at the time of periodic
inspection .31
Annex C (informative) List of gases corrosive to cylinder material .43
Annex D (informative) Volumetric expansion testing of cylinders .44
Annex E (informative) Test date rings for cylinders .52
Annex F (informative) Cleaning of seamless aluminium-alloy cylinders .53
Bibliography .54
iv © ISO 2018 – All rights reserved

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SIST EN ISO 18119:2019
ISO 18119:2018(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 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 the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by ISO/TC 58, Gas cylinders, Subcommittee SC 4, Operational requirements
for gas cylinders.
This first edition cancels and replaces ISO 6406:2005 and ISO 10461:2005, which have been technically
revised. It also incorporates the Amendment ISO 10461:2005/Amd 1:2006.
The main changes are:
— a section has been added for symbols used in the document;
— a detailed account of steps to be taken if the actual cylinder wall thickness is less than the minimum
design wall thickness has been added;
— a clearer way to ultrasonically test cylinders with a built-in footring, especially for seamless steel
cylinders with a convex base, has been added;
— improved guidelines have been added for dealing with the effects of heating of seamless aluminium-
alloy cylinders.
© ISO 2018 – All rights reserved v

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SIST EN ISO 18119:2019
ISO 18119:2018(E)

Introduction
This document provides information and procedures for the periodic inspection and testing of seamless
steel and seamless aluminium-alloy cylinders and the condition of the test equipment. The principal
aim of periodic inspection and testing is that at the completion of the test the cylinders have been
requalified and are suitable to be reintroduced into service for a further period of time.
This document requires that well-trained and competent personnel undertake the work as described
in this document, who consult the cylinder’s manufacturer if there are doubts about aspects of the
document, so that the cylinder manufacturer's current recommendations are taken into account.
[23]
This document has been written so that it is suitable to be referenced in the UN Model Regulations .
vi © ISO 2018 – All rights reserved

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SIST EN ISO 18119:2019
INTERNATIONAL STANDARD ISO 18119:2018(E)
Gas cylinders — Seamless steel and seamless
aluminium-alloy gas cylinders and tubes — Periodic
inspection and testing
CAUTION — Some of the tests specified in this document involve the use of processes that could
lead to a hazardous situation.
1 Scope
This document specifies the requirements for periodic inspection and testing to verify the integrity of
cylinders and tubes to be re-introduced into service for a further period of time.
This document is applicable to seamless steel and seamless aluminium-alloy transportable gas cylinders
(single or those that comprise a bundle) intended for compressed and liquefied gases under pressure, of
water capacity from 0,5 l up to 150 l and to seamless steel and seamless aluminium-alloy transportable
gas tubes (single or those that comprise a bundle) intended for compressed and liquefied gases under
pressure, of water capacity greater than 150 l. It also applies, as far as practical, to cylinders of less than
0,5 l water capacity.
This document does not apply to the periodic inspection and maintenance of acetylene cylinders or to
the periodic inspection and testing of composite cylinders.
NOTE Unless noted by exception, the use of the word “cylinder” in this document refers to both cylinders
and tubes.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
ISO 7866, Gas cylinders — Refillable seamless aluminium alloy gas cylinders — Design, construction
and testing
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
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 10286, Gas cylinders — Terminology
ISO 11621, Gas cylinders — Procedures for change of gas service
1)
ISO 13769 , Gas cylinders — Stamp marking
ISO 22434, Transportable gas cylinders — Inspection and maintenance of cylinder valves
ISO 25760, Gas cylinders — Operational procedures for the safe removal of valves from gas cylinders
1) To be published. Stage at the time of publication: ISO/FDIS 13769:2018.
© ISO 2018 – All rights reserved 1

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SIST EN ISO 18119:2019
ISO 18119:2018(E)

3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10286 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http: //www .electropedia .org/
— ISO Online browsing platform: available at https: //www .iso .org/obp
3.1
liquefied gas
gas, which, when packaged under pressure, is partially liquid at temperatures above −50 °C
Note 1 to entry: A distinction is made between
a) high pressure liquefied gas: a gas with a critical temperature between −50 °C and 65 °C, and
b) low pressure liquefied gas: a gas with a critical temperature above 65 °C.
3.2
rejected cylinder
cylinder not fit for service
3.3
competent authority
any national body or authority designated or otherwise recognized as such, having jurisdiction for the
transport of dangerous goods and the approval of gas cylinders
[23]
Note 1 to entry: Adapted from UN Model Regulations .
3.4
minimum design wall thickness
thickness of the cylinder wall calculated from the design standard, taking into account the material
properties and dimensions at time of manufacture
3.5
stove
treat by heating in a stove or an oven in order to apply a desired surface coating
4 Abbreviated terms and symbols
FBH flat bottom hole
PE permanent expansion
SBT sidewall-to-base transition region
UT ultrasonic testing
−1
C compressibility (expressed in m²/N or Pa )
D depth of notch in ultrasonic test sample (expressed in mm)
K factor for individual temperature (listed in Table C.1)
L length of notch in ultrasonic test sample (expressed in mm)
P pressure (expressed in bar)
V cylinder water capacity (expressed in l)
2 © ISO 2018 – All rights reserved

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SIST EN ISO 18119:2019
ISO 18119:2018(E)

W width of notch in ultrasonic test sample (expressed in mm)
X flaw length (expressed in mm)
Y flaw depth ratio
t minimum measured wall thickness of the calibration specimen (expressed in mm)
mc
t minimum design wall thickness (expressed in mm)
m
5 Intervals between periodic inspections and tests
A cylinder shall be due for periodic inspection and testing on its first receipt by a filler following the
expiry of the established interval or, in the absence of regulations, in accordance with the UN Model
[23] th
Regulations . Annex A lists the intervals for period inspection and testing as outlined in the 19
revised edition of the UN Model Regu
...

SLOVENSKI STANDARD
SIST EN ISO 18119:2019
01-januar-2019
Plinske jeklenke - Nevarjene plinske jeklenke in velike jeklenke iz jekla in
aluminijevih zlitin - Periodični pregled in preskušanje (ISO 18119:2018)
Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes -
Periodic inspection and testing (ISO 18119:2018)
Gasflaschen - Nahtlose Gasflaschen und Großflaschen aus Stahl und
Aluminiumlegierungen - Wiederkehrende Inspektion und Prüfung (ISO 18119:2018)
Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en alliages d'aluminium, sans
soudure - Contrôles et essais périodiques (ISO 18119:2018)
Ta slovenski standard je istoveten z: EN ISO 18119:2018
ICS:
23.020.35 Plinske jeklenke Gas cylinders
77.150.10 Aluminijski izdelki Aluminium products
SIST EN ISO 18119:2019 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 18119:2019

---------------------- Page: 2 ----------------------
SIST EN ISO 18119:2019


EN ISO 18119
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2018
EUROPÄISCHE NORM
ICS 23.020.35
English Version

Gas cylinders - Seamless steel and seamless aluminium-
alloy gas cylinders and tubes - Periodic inspection and
testing (ISO 18119:2018)
Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en Gasflaschen - Nahtlose Gasflaschen und Großflaschen
alliages d'aluminium, sans soudure - Contrôles et aus Stahl und Aluminiumlegierungen -
essais périodiques (ISO 18119:2018) Wiederkehrende Inspektion und Prüfung (ISO
18119:2018)
This European Standard was approved by CEN on 17 May 2018.

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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18119:2018 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
SIST EN ISO 18119:2019
EN ISO 18119:2018 (E)
Contents Page
European foreword . 3

2

---------------------- Page: 4 ----------------------
SIST EN ISO 18119:2019
EN ISO 18119:2018 (E)
European foreword
This document (EN ISO 18119:2018) has been prepared by Technical Committee ISO/TC 58 "Gas
cylinders" in collaboration with 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 2019, and conflicting national standards shall be
withdrawn at the latest by April 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 18119:2018 has been approved by CEN as EN ISO 18119:2018 without any modification.

3

---------------------- Page: 5 ----------------------
SIST EN ISO 18119:2019

---------------------- Page: 6 ----------------------
SIST EN ISO 18119:2019
INTERNATIONAL ISO
STANDARD 18119
First edition
2018-05
Gas cylinders — Seamless steel
and seamless aluminium-alloy gas
cylinders and tubes — Periodic
inspection and testing
Bouteilles à gaz — Bouteilles et tubes à gaz en acier et en alliages
d'aluminium, sans soudure — Contrôles et essais périodiques
Reference number
ISO 18119:2018(E)
©
ISO 2018

---------------------- Page: 7 ----------------------
SIST EN ISO 18119:2019
ISO 18119:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

---------------------- Page: 8 ----------------------
SIST EN ISO 18119:2019
ISO 18119:2018(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms and symbols . 2
5 Intervals between periodic inspections and tests . 3
6 List of procedures for periodic inspections and tests. 3
7 Identification of cylinder and preparation for inspection and tests .4
8 Depressurization and de-valving procedures . 4
8.1 General . 4
8.2 Cylinders requiring de-valving . 5
8.3 Cylinders not requiring de-valving . 5
8.4 Cylinders requiring shot blasting. 5
9 External visual inspection . 5
9.1 Preparation . 5
9.2 Inspection procedure . 6
10 Inspection of cylinder neck . 6
10.1 Cylinder-to-valve threads . 6
10.2 Other neck surfaces . 9
10.3 Damaged internal neck threads . 9
10.4 Neckring and collar attachment . 9
11 Check of internal condition . 9
11.1 General . 9
11.2 Internal visual inspection .10
11.2.1 Preparation .10
11.2.2 Inspection requirements.10
11.2.3 Cylinders with footrings .11
11.2.4 Cylinders with internal coatings .11
12 Supplementary tests .11
12.1 General .11
12.2 Additional test for seamless aluminium-alloy cylinders possibly subjected to heat
damage .11
12.3 Hammer test on cylinders with footrings .12
13 Cylinder repairs .12
14 Pressure test or UT .12
14.1 General .12
14.2 Proof pressure test .13
14.2.1 General.13
14.2.2 Test equipment .13
14.2.3 Test criteria .13
14.2.4 Acceptance criteria .14
14.3 Hydraulic volumetric expansion test .14
14.4 UT .14
14.4.1 General.14
14.4.2 Requirements .14
14.4.3 Calibration .19
14.4.4 Performing the examination .23
© ISO 2018 – All rights reserved iii

---------------------- Page: 9 ----------------------
SIST EN ISO 18119:2019
ISO 18119:2018(E)

14.4.5 Interpretation of results .24
14.4.6 Records .25
15 Inspection of valve and other accessories .25
16 Replacement of cylinder parts .26
17 Final operations .26
17.1 Drying, cleaning and painting .26
17.1.1 Drying and cleaning .26
17.1.2 Painting and coating .26
17.2 Re-valving of the cylinder .27
17.3 Check of cylinder tare .27
17.4 Retest marking .28
17.4.1 General.28
17.4.2 Stamping .28
17.5 Reference to next periodic inspection and test date .28
17.6 Identification of contents .28
17.7 Records .28
18 Rejection and rendering cylinder unserviceable .29
18.1 General .29
18.2 Cylinders with a valve attached .29
18.3 Cylinders with no valves attached .29
Annex A (informative) Periodic inspection and test periods .30
Annex B (normative) Description, evaluation of defects and conditions for rejection of
seamless steel and seamless aluminium-alloy cylinders at the time of periodic
inspection .31
Annex C (informative) List of gases corrosive to cylinder material .43
Annex D (informative) Volumetric expansion testing of cylinders .44
Annex E (informative) Test date rings for cylinders .52
Annex F (informative) Cleaning of seamless aluminium-alloy cylinders .53
Bibliography .54
iv © ISO 2018 – All rights reserved

---------------------- Page: 10 ----------------------
SIST EN ISO 18119:2019
ISO 18119:2018(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 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 the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by ISO/TC 58, Gas cylinders, Subcommittee SC 4, Operational requirements
for gas cylinders.
This first edition cancels and replaces ISO 6406:2005 and ISO 10461:2005, which have been technically
revised. It also incorporates the Amendment ISO 10461:2005/Amd 1:2006.
The main changes are:
— a section has been added for symbols used in the document;
— a detailed account of steps to be taken if the actual cylinder wall thickness is less than the minimum
design wall thickness has been added;
— a clearer way to ultrasonically test cylinders with a built-in footring, especially for seamless steel
cylinders with a convex base, has been added;
— improved guidelines have been added for dealing with the effects of heating of seamless aluminium-
alloy cylinders.
© ISO 2018 – All rights reserved v

---------------------- Page: 11 ----------------------
SIST EN ISO 18119:2019
ISO 18119:2018(E)

Introduction
This document provides information and procedures for the periodic inspection and testing of seamless
steel and seamless aluminium-alloy cylinders and the condition of the test equipment. The principal
aim of periodic inspection and testing is that at the completion of the test the cylinders have been
requalified and are suitable to be reintroduced into service for a further period of time.
This document requires that well-trained and competent personnel undertake the work as described
in this document, who consult the cylinder’s manufacturer if there are doubts about aspects of the
document, so that the cylinder manufacturer's current recommendations are taken into account.
[23]
This document has been written so that it is suitable to be referenced in the UN Model Regulations .
vi © ISO 2018 – All rights reserved

---------------------- Page: 12 ----------------------
SIST EN ISO 18119:2019
INTERNATIONAL STANDARD ISO 18119:2018(E)
Gas cylinders — Seamless steel and seamless
aluminium-alloy gas cylinders and tubes — Periodic
inspection and testing
CAUTION — Some of the tests specified in this document involve the use of processes that could
lead to a hazardous situation.
1 Scope
This document specifies the requirements for periodic inspection and testing to verify the integrity of
cylinders and tubes to be re-introduced into service for a further period of time.
This document is applicable to seamless steel and seamless aluminium-alloy transportable gas cylinders
(single or those that comprise a bundle) intended for compressed and liquefied gases under pressure, of
water capacity from 0,5 l up to 150 l and to seamless steel and seamless aluminium-alloy transportable
gas tubes (single or those that comprise a bundle) intended for compressed and liquefied gases under
pressure, of water capacity greater than 150 l. It also applies, as far as practical, to cylinders of less than
0,5 l water capacity.
This document does not apply to the periodic inspection and maintenance of acetylene cylinders or to
the periodic inspection and testing of composite cylinders.
NOTE Unless noted by exception, the use of the word “cylinder” in this document refers to both cylinders
and tubes.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
ISO 7866, Gas cylinders — Refillable seamless aluminium alloy gas cylinders — Design, construction
and testing
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
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 10286, Gas cylinders — Terminology
ISO 11621, Gas cylinders — Procedures for change of gas service
1)
ISO 13769 , Gas cylinders — Stamp marking
ISO 22434, Transportable gas cylinders — Inspection and maintenance of cylinder valves
ISO 25760, Gas cylinders — Operational procedures for the safe removal of valves from gas cylinders
1) To be published. Stage at the time of publication: ISO/FDIS 13769:2018.
© ISO 2018 – All rights reserved 1

---------------------- Page: 13 ----------------------
SIST EN ISO 18119:2019
ISO 18119:2018(E)

3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10286 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http: //www .electropedia .org/
— ISO Online browsing platform: available at https: //www .iso .org/obp
3.1
liquefied gas
gas, which, when packaged under pressure, is partially liquid at temperatures above −50 °C
Note 1 to entry: A distinction is made between
a) high pressure liquefied gas: a gas with a critical temperature between −50 °C and 65 °C, and
b) low pressure liquefied gas: a gas with a critical temperature above 65 °C.
3.2
rejected cylinder
cylinder not fit for service
3.3
competent authority
any national body or authority designated or otherwise recognized as such, having jurisdiction for the
transport of dangerous goods and the approval of gas cylinders
[23]
Note 1 to entry: Adapted from UN Model Regulations .
3.4
minimum design wall thickness
thickness of the cylinder wall calculated from the design standard, taking into account the material
properties and dimensions at time of manufacture
3.5
stove
treat by heating in a stove or an oven in order to apply a desired surface coating
4 Abbreviated terms and symbols
FBH flat bottom hole
PE permanent expansion
SBT sidewall-to-base transition region
UT ultrasonic testing
−1
C compressibility (expressed in m²/N or Pa )
D depth of notch in ultrasonic test sample (expressed in mm)
K factor for individual temperature (listed in Table C.1)
L length of notch in ultrasonic test sample (expressed in mm)
P pressure (expressed in bar)
V cylinder water capacity (expressed in l)
2 © ISO 2018 – All rights reserved

---------------------- Page: 14 ----------------------
SIST EN ISO 18119:2019
ISO 18119:2018(E)

W width of notch in ultrasonic test sample (expressed in mm)
X flaw length (expressed in mm)
Y flaw depth ratio
t minimum measured wall thickness of the calibration specimen (expressed in mm)
mc
t minimum design wall thickness (expressed in mm)
m
5 Intervals between periodic inspections and tests
A cylinder shall be due for periodic inspection and testing on its first receipt by a filler following the
expiry of the established interval or, in the absence of regulations, in accordance with the UN Model
[23] th
Regulations . Annex A lists the intervals for period inspection and testing as outlined in the 19
revised edition of the UN Model Regu
...

SLOVENSKI STANDARD
SIST EN ISO 18119:2019
01-januar-2019
3OLQVNHMHNOHQNH1HYDUMHQHSOLQVNHMHNOHQNHLQYHOLNHMHNOHQNHL]MHNODLQ
DOXPLQLMHYLK]OLWLQ3HULRGLþQLSUHJOHGLQSUHVNXãDQMH ,62
Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes -
Periodic inspection and testing (ISO 18119:2018)
Gasflaschen - Nahtlose Gasflaschen und Großflaschen aus Stahl und
Aluminiumlegierungen - Wiederkehrende Inspektion und Prüfung (ISO 18119:2018)
Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en alliages d'aluminium, sans
soudure - Contrôles et essais périodiques (ISO 18119:2018)
Ta slovenski standard je istoveten z: EN ISO 18119:2018
ICS:
23.020.35 Plinske jeklenke Gas cylinders
77.150.10 Aluminijski izdelki Aluminium products
SIST EN ISO 18119:2019 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN ISO 18119:2019

---------------------- Page: 2 ----------------------

SIST EN ISO 18119:2019


EN ISO 18119
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2018
EUROPÄISCHE NORM
ICS 23.020.35
English Version

Gas cylinders - Seamless steel and seamless aluminium-
alloy gas cylinders and tubes - Periodic inspection and
testing (ISO 18119:2018)
Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en Gasflaschen - Nahtlose Gasflaschen und Großflaschen
alliages d'aluminium, sans soudure - Contrôles et aus Stahl und Aluminiumlegierungen -
essais périodiques (ISO 18119:2018) Wiederkehrende Inspektion und Prüfung (ISO
18119:2018)
This European Standard was approved by CEN on 17 May 2018.

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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18119:2018 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN ISO 18119:2019
EN ISO 18119:2018 (E)
Contents Page
European foreword . 3

2

---------------------- Page: 4 ----------------------

SIST EN ISO 18119:2019
EN ISO 18119:2018 (E)
European foreword
This document (EN ISO 18119:2018) has been prepared by Technical Committee ISO/TC 58 "Gas
cylinders" in collaboration with 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 2019, and conflicting national standards shall be
withdrawn at the latest by April 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 18119:2018 has been approved by CEN as EN ISO 18119:2018 without any modification.

3

---------------------- Page: 5 ----------------------

SIST EN ISO 18119:2019

---------------------- Page: 6 ----------------------

SIST EN ISO 18119:2019
INTERNATIONAL ISO
STANDARD 18119
First edition
2018-05
Gas cylinders — Seamless steel
and seamless aluminium-alloy gas
cylinders and tubes — Periodic
inspection and testing
Bouteilles à gaz — Bouteilles et tubes à gaz en acier et en alliages
d'aluminium, sans soudure — Contrôles et essais périodiques
Reference number
ISO 18119:2018(E)
©
ISO 2018

---------------------- Page: 7 ----------------------

SIST EN ISO 18119:2019
ISO 18119:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

---------------------- Page: 8 ----------------------

SIST EN ISO 18119:2019
ISO 18119:2018(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms and symbols . 2
5 Intervals between periodic inspections and tests . 3
6 List of procedures for periodic inspections and tests. 3
7 Identification of cylinder and preparation for inspection and tests .4
8 Depressurization and de-valving procedures . 4
8.1 General . 4
8.2 Cylinders requiring de-valving . 5
8.3 Cylinders not requiring de-valving . 5
8.4 Cylinders requiring shot blasting. 5
9 External visual inspection . 5
9.1 Preparation . 5
9.2 Inspection procedure . 6
10 Inspection of cylinder neck . 6
10.1 Cylinder-to-valve threads . 6
10.2 Other neck surfaces . 9
10.3 Damaged internal neck threads . 9
10.4 Neckring and collar attachment . 9
11 Check of internal condition . 9
11.1 General . 9
11.2 Internal visual inspection .10
11.2.1 Preparation .10
11.2.2 Inspection requirements.10
11.2.3 Cylinders with footrings .11
11.2.4 Cylinders with internal coatings .11
12 Supplementary tests .11
12.1 General .11
12.2 Additional test for seamless aluminium-alloy cylinders possibly subjected to heat
damage .11
12.3 Hammer test on cylinders with footrings .12
13 Cylinder repairs .12
14 Pressure test or UT .12
14.1 General .12
14.2 Proof pressure test .13
14.2.1 General.13
14.2.2 Test equipment .13
14.2.3 Test criteria .13
14.2.4 Acceptance criteria .14
14.3 Hydraulic volumetric expansion test .14
14.4 UT .14
14.4.1 General.14
14.4.2 Requirements .14
14.4.3 Calibration .19
14.4.4 Performing the examination .23
© ISO 2018 – All rights reserved iii

---------------------- Page: 9 ----------------------

SIST EN ISO 18119:2019
ISO 18119:2018(E)

14.4.5 Interpretation of results .24
14.4.6 Records .25
15 Inspection of valve and other accessories .25
16 Replacement of cylinder parts .26
17 Final operations .26
17.1 Drying, cleaning and painting .26
17.1.1 Drying and cleaning .26
17.1.2 Painting and coating .26
17.2 Re-valving of the cylinder .27
17.3 Check of cylinder tare .27
17.4 Retest marking .28
17.4.1 General.28
17.4.2 Stamping .28
17.5 Reference to next periodic inspection and test date .28
17.6 Identification of contents .28
17.7 Records .28
18 Rejection and rendering cylinder unserviceable .29
18.1 General .29
18.2 Cylinders with a valve attached .29
18.3 Cylinders with no valves attached .29
Annex A (informative) Periodic inspection and test periods .30
Annex B (normative) Description, evaluation of defects and conditions for rejection of
seamless steel and seamless aluminium-alloy cylinders at the time of periodic
inspection .31
Annex C (informative) List of gases corrosive to cylinder material .43
Annex D (informative) Volumetric expansion testing of cylinders .44
Annex E (informative) Test date rings for cylinders .52
Annex F (informative) Cleaning of seamless aluminium-alloy cylinders .53
Bibliography .54
iv © ISO 2018 – All rights reserved

---------------------- Page: 10 ----------------------

SIST EN ISO 18119:2019
ISO 18119:2018(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 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 the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by ISO/TC 58, Gas cylinders, Subcommittee SC 4, Operational requirements
for gas cylinders.
This first edition cancels and replaces ISO 6406:2005 and ISO 10461:2005, which have been technically
revised. It also incorporates the Amendment ISO 10461:2005/Amd 1:2006.
The main changes are:
— a section has been added for symbols used in the document;
— a detailed account of steps to be taken if the actual cylinder wall thickness is less than the minimum
design wall thickness has been added;
— a clearer way to ultrasonically test cylinders with a built-in footring, especially for seamless steel
cylinders with a convex base, has been added;
— improved guidelines have been added for dealing with the effects of heating of seamless aluminium-
alloy cylinders.
© ISO 2018 – All rights reserved v

---------------------- Page: 11 ----------------------

SIST EN ISO 18119:2019
ISO 18119:2018(E)

Introduction
This document provides information and procedures for the periodic inspection and testing of seamless
steel and seamless aluminium-alloy cylinders and the condition of the test equipment. The principal
aim of periodic inspection and testing is that at the completion of the test the cylinders have been
requalified and are suitable to be reintroduced into service for a further period of time.
This document requires that well-trained and competent personnel undertake the work as described
in this document, who consult the cylinder’s manufacturer if there are doubts about aspects of the
document, so that the cylinder manufacturer's current recommendations are taken into account.
[23]
This document has been written so that it is suitable to be referenced in the UN Model Regulations .
vi © ISO 2018 – All rights reserved

---------------------- Page: 12 ----------------------

SIST EN ISO 18119:2019
INTERNATIONAL STANDARD ISO 18119:2018(E)
Gas cylinders — Seamless steel and seamless
aluminium-alloy gas cylinders and tubes — Periodic
inspection and testing
CAUTION — Some of the tests specified in this document involve the use of processes that could
lead to a hazardous situation.
1 Scope
This document specifies the requirements for periodic inspection and testing to verify the integrity of
cylinders and tubes to be re-introduced into service for a further period of time.
This document is applicable to seamless steel and seamless aluminium-alloy transportable gas cylinders
(single or those that comprise a bundle) intended for compressed and liquefied gases under pressure, of
water capacity from 0,5 l up to 150 l and to seamless steel and seamless aluminium-alloy transportable
gas tubes (single or those that comprise a bundle) intended for compressed and liquefied gases under
pressure, of water capacity greater than 150 l. It also applies, as far as practical, to cylinders of less than
0,5 l water capacity.
This document does not apply to the periodic inspection and maintenance of acetylene cylinders or to
the periodic inspection and testing of composite cylinders.
NOTE Unless noted by exception, the use of the word “cylinder” in this document refers to both cylinders
and tubes.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
ISO 7866, Gas cylinders — Refillable seamless aluminium alloy gas cylinders — Design, construction
and testing
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
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 10286, Gas cylinders — Terminology
ISO 11621, Gas cylinders — Procedures for change of gas service
1)
ISO 13769 , Gas cylinders — Stamp marking
ISO 22434, Transportable gas cylinders — Inspection and maintenance of cylinder valves
ISO 25760, Gas cylinders — Operational procedures for the safe removal of valves from gas cylinders
1) To be published. Stage at the time of publication: ISO/FDIS 13769:2018.
© ISO 2018 – All rights reserved 1

---------------------- Page: 13 ----------------------

SIST EN ISO 18119:2019
ISO 18119:2018(E)

3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10286 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http: //www .electropedia .org/
— ISO Online browsing platform: available at https: //www .iso .org/obp
3.1
liquefied gas
gas, which, when packaged under pressure, is partially liquid at temperatures above −50 °C
Note 1 to entry: A distinction is made between
a) high pressure liquefied gas: a gas with a critical temperature between −50 °C and 65 °C, and
b) low pressure liquefied gas: a gas with a critical temperature above 65 °C.
3.2
rejected cylinder
cylinder not fit for service
3.3
competent authority
any national body or authority designated or otherwise recognized as such, having jurisdiction for the
transport of dangerous goods and the approval of gas cylinders
[23]
Note 1 to entry: Adapted from UN Model Regulations .
3.4
minimum design wall thickness
thickness of the cylinder wall calculated from the design standard, taking into account the material
properties and dimensions at time of manufacture
3.5
stove
treat by heating in a stove or an oven in order to apply a desired surface coating
4 Abbreviated terms and symbols
FBH flat bottom hole
PE permanent expansion
SBT sidewall-to-base transition region
UT ultrasonic testing
−1
C compressibility (expressed in m²/N or Pa )
D depth of notch in ultrasonic test sample (expressed in mm)
K factor for individual temperature (listed in Table C.1)
L length of notch in ultrasonic test sample (expressed in mm)
P pressure (expressed in bar)
V cylinder water capacity (expressed in l)
2 © ISO 2018 – All rights reserved

---------------------- Page: 14 ----------------------

SIST EN ISO 18119:2019
ISO 18119:2018(E)

W width of notch in ultrasonic test sample (expressed in mm)
X flaw length (expressed in mm)
Y flaw depth ratio
t minimum measured wall thickness of the calibration specimen (expressed in mm)
mc
t minimum design wall thickness (expressed in mm)
m
5 Intervals between periodic inspections and tests
A cylinder shall be due for periodic inspection and testing on its first receipt by a filler following the
expiry of the established interval or, in the absence of regulations, in accordance with the UN Model
[23] th
Regulations . Annex A lists the intervals for period inspection and testing as outlined in the 19
revised ed
...

SLOVENSKI STANDARD
SIST EN ISO 18119:2019
01-januar-2019
Plinske jeklenke - Plinske jeklenke in velike jeklenke iz celega iz jekla in
aluminijevih zlitin - Periodični pregled in preskušanje (ISO 18119:2018)
Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes -
Periodic inspection and testing (ISO 18119:2018)
Gasflaschen - Nahtlose Gasflaschen und Großflaschen aus Stahl und
Aluminiumlegierungen - Wiederkehrende Inspektion und Prüfung (ISO 18119:2018)
Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en alliages d'aluminium, sans
soudure - Contrôles et essais périodiques (ISO 18119:2018)
Ta slovenski standard je istoveten z: EN ISO 18119:2018
ICS:
23.020.35 Plinske jeklenke Gas cylinders
77.150.10 Aluminijski izdelki Aluminium products
SIST EN ISO 18119:2019 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 18119:2019

---------------------- Page: 2 ----------------------
SIST EN ISO 18119:2019


EN ISO 18119
EUROPÄISCHE NORM

EUROPEAN STANDARD

Oktober 2018
NORME EUROPÉENNE
ICS 23.020.35
Deutsche Fassung

Gasflaschen - Nahtlose Gasflaschen und Großflaschen aus
Stahl und Aluminiumlegierungen - Wiederkehrende
Inspektion und Prüfung (ISO 18119:2018)
Gas cylinders - Seamless steel and seamless aluminium- Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en
alloy gas cylinders and tubes - Periodic inspection and alliages d'aluminium, sans soudure - Contrôles et essais
testing (ISO 18119:2018) périodiques (ISO 18119:2018)
Diese Europäische Norm wurde vom CEN am 17. Mai 2018 angenommen.

Die CEN-Mitglieder sind gehalten, die CEN/CENELEC-Geschäftsordnung zu erfüllen, in der die Bedingungen festgelegt sind, unter
denen dieser Europäischen Norm ohne jede Änderung der Status einer nationalen Norm zu geben ist. Auf dem letzten Stand
befindliche Listen dieser nationalen Normen mit ihren bibliographischen Angaben sind beim CEN-CENELEC-Management-
Zentrum oder bei jedem CEN-Mitglied auf Anfrage erhältlich.

Diese Europäische Norm besteht in drei offiziellen Fassungen (Deutsch, Englisch, Französisch). Eine Fassung in einer anderen
Sprache, die von einem CEN-Mitglied in eigener Verantwortung durch Übersetzung in seine Landessprache gemacht und dem
Management-Zentrum mitgeteilt worden ist, hat den gleichen Status wie die offiziellen Fassungen.

CEN-Mitglieder sind die nationalen Normungsinstitute von Belgien, Bulgarien, Dänemark, Deutschland, der ehemaligen
jugoslawischen Republik Mazedonien, Estland, Finnland, Frankreich, Griechenland, Irland, Island, Italien, Kroatien, Lettland,
Litauen, Luxemburg, Malta, den Niederlanden, Norwegen, Österreich, Polen, Portugal, Rumänien, Schweden, der Schweiz,
Serbien, der Slowakei, Slowenien, Spanien, der Tschechischen Republik, der Türkei, Ungarn, dem Vereinigten Königreich und
Zypern.





EUROPÄISCHES KOMITEE FÜR NORMUNG
EUROPEAN COMMITTEE FOR STANDARDIZATION

COMITÉ EUROPÉEN DE NORMALISATION

CEN-CENELEC Management-Zentrum: Rue de la Science 23, B-1040 Brüssel
© 2018 CEN Alle Rechte der Verwertung, gleich in welcher Form und in welchem Ref. Nr. EN ISO 18119:2018 D
Verfahren, sind weltweit den nationalen Mitgliedern von CEN
vorbehalten.

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
Inhalt
Seite
Europäisches Vorwort . 6
Vorwort . 7
Einleitung . 8
1 Anwendungsbereich . 9
2 Normative Verweisungen . 9
3 Begriffe . 10
4 Abkürzungen und Symbole . 11
5 Zeitabstände zwischen den wiederkehrenden Inspektionen und Prüfungen . 11
6 Liste der Verfahren für wiederkehrende Inspektionen und Prüfungen . 12
7 Identifizierung der Gasflasche und Vorbereitung für Inspektion und Prüfungen . 13
8 Verfahren für Druckentlastung und Ventilausbau . 13
8.1 Allgemeines . 13
8.2 Gasflaschen, die Ventilausbau erfordern . 13
8.3 Gasflaschen, die keinen Ventilausbau erfordern . 13
8.4 Gasflaschen, die Kugelstrahlen erfordern . 14
9 Äußere Sichtprüfung . 14
9.1 Vorbereitung . 14
9.2 Inspektionsverfahren . 14
10 Inspektion des Flaschenhalses . 15
10.1 Flaschenventilgewinde . 15
10.2 Sonstige Halsoberflächen . 17
10.3 Beschädigte Hals-Innengewinde . 17
10.4 Anbringen von Halsring und -kragen . 18
11 Überprüfung des inneren Zustands . 18
11.1 Allgemeines . 18
11.2 Innere Sichtprüfung . 18
11.2.1 Vorbereitung . 18
11.2.2 Inspektionsanforderungen . 19
11.2.3 Gasflaschen mit Fußringen . 19
11.2.4 Gasflaschen mit innerer Beschichtung . 20
12 Zusätzliche Prüfungen . 20
12.1 Allgemeines . 20
12.2 Zusätzliche Prüfung für nahtlose Gasflaschen aus Aluminiumlegierungen mit möglichen
Wärmeschäden . 20
12.3 Hammerprüfung an Gasflaschen mit Fußringen . 20
13 Reparatur von Flaschen . 21
14 Druckprüfung oder UT . 21
14.1 Allgemeines . 21
14.2 Druckprüfung . 22
14.2.1 Allgemeines . 22
2

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
14.2.2 Prüfausrüstung. 22
14.2.3 Prüfkriterien . 22
14.2.4 Annahmekriterien . 23
14.3 Hydraulische Volumenausdehnungsprüfung . 23
14.4 UT . 24
14.4.1 Allgemeines . 24
14.4.2 Anforderungen . 24
14.4.3 Kalibrierung . 28
14.4.4 Durchführung der Untersuchung . 32
14.4.5 Auswertung der Ergebnisse . 33
14.4.6 Aufzeichnungen . 34
15 Inspektion des Ventils und anderer Zubehörteile . 34
16 Austausch von Flaschenteilen . 35
17 Abschließende Arbeitsgänge . 35
17.1 Trocknung, Reinigung und Farbanstrich . 35
17.1.1 Trocknung und Reinigung . 35
17.1.2 Farbanstrich und Beschichtung . 35
17.2 Wiedereindrehen des Ventils in die Flasche . 36
17.3 Überprüfung der Tara der Flasche. 36
17.4 Kennzeichnung der wiederkehrenden Prüfung . 37
17.4.1 Allgemeines . 37
17.4.2 Stempelung . 37
17.5 Verweisung auf das Datum der nächsten wiederkehrenden Inspektion und Prüfung . 37
17.6 Identifizierung des Inhalts . 37
17.7 Aufzeichnungen . 38
18 Zurückweisung und Außerbetriebnahme von Flaschen . 38
18.1 Allgemeines . 38
18.2 Flaschen mit angebrachtem Ventil . 38
18.3 Flaschen ohne Ventil . 39
Anhang A (informativ) Fristen für die wiederkehrende Inspektion und Prüfung . 40
Anhang B (normativ) Beschreibung, Beurteilung von Fehlern sowie Bedingungen für die
Zurückweisung von nahtlosen Gasflaschen aus Stahl und Aluminiumlegierungen zum
Zeitpunkt der wiederkehrenden Inspektion . 41
B.1 Allgemeines . 41
B.2 Physikalische oder werkstoffbezogene Fehler. 42
B.3 Korrosion . 44
B.3.1 Allgemeines . 44
B.3.2 Korrosionsarten. 44
B.3.3 Technische Grundlage für die Bestimmung der maximal zulässigen Fehlergrößen durch
UT . 47
B.4 Risse in Flaschenhals und -schulter . 51
B.4.1 Allgemeines . 51
B.4.2 Risse im Flaschenhals . 51
B.4.3 Risse in der Flaschenschulter . 51
Anhang C (informativ) Auflistung von Gasen, die eine korrosive Wirkung auf den
Flaschenwerkstoff haben . 52
Anhang D (informativ) Volumenausdehnungsprüfung von Gasflaschen . 53
D.1 Allgemeines . 53
D.2 Prüfausrüstung. 53
D.3 Volumenausdehnungsprüfung mit Wasserbad . 54
D.3.1 Allgemeines . 54
D.3.2 Volumenausdehnungsprüfung mit Wasserbad — Verfahren mit Ausgleichsbürette . 55
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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
D.3.3 Volumenausdehnungsprüfung mit Wasserbad — Verfahren mit feststehender Bürette . 56
D.4 Volumenausdehnungsprüfung ohne Wasserbad . 57
D.4.1 Allgemeines . 57
D.4.2 Prüfanforderung . 58
D.4.3 Prüfverfahren . 59
D.4.4 Berechnung der Kompressibilität von Wasser . 60
D.4.5 Berechnungsbeispiel . 61
Anhang E (informativ) Prüfdatumringe für Gasflaschen . 62
Anhang F (informativ) Reinigung von nahtlosen Gasflaschen aus Aluminiumlegierungen . 63
F.1 Innen . 63
F.2 Außen . 63
Literaturhinweise . 64

Bilder
Bild 1 — Beispiel einer kalibrierten Lochlehre für das Gewinde (Gewinde – nicht bestanden). 15
Bild 2 — Beispiel einer Grenzlochlehre (Gewinde – bestanden) . 16
Bild 3 — Überprüfung der Unrundheit . 16
Bild 4 — Risse im Flaschenhals . 17
Bild 5 — Abzweigmarkierungen . 17
Bild 6 — Beispiele zweier Arten von Ausrüstungen der UT für Flaschen . 24
Bild 7 — Beispiel für die Lage des SBT des Referenzprüfkörpers, Seitenwand und Lage der
Kerbe . 25
Bild 8 — Beispiele für die Gestaltung von Umformern . 26
Bild 9 — Beispiele von Kopplungstechniken . 26
Bild 10 — Beispiele für Fehleralarm . 27
Bild 11 — Beispiele von Referenzkerben . 30
Bild 12 — Typische FBH-Kerbe . 31
Bild 13 — Amplitude der Referenzkerbe. 31
Bild 14 — Fehlererkennung in Flaschenenden mit Fußringen . 33
Bild 15 — Erkennungsbeispiel von Rissen in Querrichtung . 34
Bild B.1 — Einschnitt oder Riefe . 46
Bild B.2 — Riss . 46
Bild B.3 — Allgemeine Korrosion . 46
Bild B.4 — Linienförmige Korrosion oder Lochfraßkette . 46
Bild B.5 — Vereinzelte Krater . 47
Bild B.6 — Maximale zulässige Fehlergrößen für nahtlose Gasflaschen aus Stahl verschiedener
Zusammensetzungen . 49
Bild B.7 — Maximale zulässige Fehlergrößen für nahtlose Gasflaschen aus
Aluminiumlegierungen . 50
Bild B.8 — Beispiel der X- und Y-Referenzpunkte für die Kerbenlage . 50
Bild B.9 — Risse in der Flaschenschulter . 51
Bild D.1 — Volumenausdehnungsprüfung mit Wasserbad (Verfahren mit Ausgleichsbürette). 55
Bild D.2 — Volumenausdehnungsprüfung mit Wasserbad (Verfahren mit feststehender Bürette) . 57
Bild D.3 — Verfahren ohne Wasserbad — Schematische Darstellung der Prüfeinrichtung für
Flaschen . 58

4

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
Tabellen
Tabelle 1 — Maximale Differenzen zwischen Gewichtsmessung mit Waage und
gekennzeichneter Tara . 37
Tabelle A.1 — Zeitabstände für wiederkehrende Inspektionen und Prüfungen . 40
Tabelle B.1 — Kriterien der Zurückweisung bezüglich physikalischer und Materialfehler im
Flaschenkörper . 42
Tabelle B.2 — Kriterien der Zurückweisung für Korrosion der Flaschenwand . 44
Tabelle B.3 — Maximale zulässige Fehlergröße für die UT-Annahme/-Zurückweisung . 48
Tabelle C.1 — Gase, die eine korrosive Wirkung auf den Flaschenwerkstoff haben . 52
Tabelle D.1 — Werte des Faktors K . 60
Tabelle E.1 — System, das Farben und Ringe nutzt, um die Daten der wiederkehrenden
Inspektion zu identifizieren . 62
Tabelle F.1 — Typische Reinigungsverfahren für das Innere einer nahtlosen Gasflasche aus
Aluminiumlegierungen . 63

5

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
Europäisches Vorwort
Dieses Dokument (EN ISO 18119:2018) wurde vom Technischen Komitee ISO/TC 58 „Gas cylinders“ in
Zusammenarbeit mit dem Technischen Komitee CEN/TC 23 „Ortsbewegliche Gasflaschen“ erarbeitet, dessen
Sekretariat von BSI gehalten wird.
Diese Europäische Norm muss den Status einer nationalen Norm erhalten, entweder durch Veröffentlichung
eines identischen Textes oder durch Anerkennung bis April 2019, und etwaige entgegenstehende nationale
Normen müssen bis April 2019 zurückgezogen werden.
Es wird auf die Möglichkeit hingewiesen, dass einige Elemente dieses Dokuments Patentrechte berühren
können. CEN ist nicht dafür verantwortlich, einige oder alle diesbezüglichen Patentrechte zu identifizieren.
Entsprechend der CEN-CENELEC-Geschäftsordnung sind die nationalen Normungsinstitute der folgenden
Länder gehalten, diese Europäische Norm zu übernehmen: Belgien, Bulgarien, Dänemark, Deutschland, die
ehemalige jugoslawische Republik Mazedonien, Estland, Finnland, Frankreich, Griechenland, Irland, Island,
Italien, Kroatien, Lettland, Litauen, Luxemburg, Malta, Niederlande, Norwegen, Österreich, Polen, Portugal,
Rumänien, Schweden, Schweiz, Serbien, Slowakei, Slowenien, Spanien, Tschechische Republik, Türkei,
Ungarn, Vereinigtes Königreich und Zypern.
Anerkennungsnotiz
Der Text von ISO 18119:2018 wurde von CEN als EN ISO 18119:2018 ohne irgendeine Abänderung
genehmigt.
6

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
Vorwort
ISO (die Internationale Organisation für Normung) ist eine weltweite Vereinigung nationaler
Normungsorganisationen (ISO-Mitgliedsorganisationen). Die Erstellung von Internationalen Normen wird
üblicherweise von Technischen Komitees von ISO durchgeführt. Jede Mitgliedsorganisation, die Interesse an
einem Thema hat, für welches ein Technisches Komitee gegründet wurde, hat das Recht, in diesem Komitee
vertreten zu sein. Internationale staatliche und nichtstaatliche Organisationen, die in engem Kontakt mit ISO
stehen, nehmen ebenfalls an der Arbeit teil. ISO arbeitet bei allen elektrotechnischen Themen eng mit der
Internationalen Elektrotechnischen Kommission (IEC) zusammen.
Die Verfahren, die bei der Entwicklung dieses Dokuments angewendet wurden und die für die weitere Pflege
vorgesehen sind, werden in den ISO/IEC-Direktiven, Teil 1 beschrieben. Es sollten insbesondere die
unterschiedlichen Annahmekriterien für die verschiedenen ISO-Dokumentenarten beachtet werden. Dieses
Dokument wurde nach den Gestaltungsregeln der ISO/IEC-Direktiven, Teil 2 erarbeitet (siehe
www.iso.org/directives).
Es wird auf die Möglichkeit hingewiesen, dass einige Elemente dieses Dokuments Patentrechte berühren
können. ISO ist nicht dafür verantwortlich, einige oder alle diesbezüglichen Patentrechte zu identifizieren.
Details zu allen während der Entwicklung des Dokuments identifizierten Patentrechten finden sich in der
Einleitung und/oder in der ISO-Liste der erhaltenen Patenterklärungen (siehe www.iso.org/patents).
Jeder in diesem Dokument verwendete Handelsname dient nur zur Unterrichtung der Anwender und
bedeutet keine Anerkennung.
Eine Erläuterung zum freiwilligen Charakter von Normen, der Bedeutung ISO-spezifischer Begriffe und
Ausdrücke in Bezug auf Konformitätsbewertungen sowie Informationen darüber, wie ISO die Grundsätze der
Welthandelsorganisation (WTO) hinsichtlich technischer Handelshemmnisse (TBT) berücksichtigt, enthält
der folgende Link: www.iso.org/iso/foreword.html.
Dieses Dokument wurde vom Technischen Komitee
...

SLOVENSKI STANDARD
SIST EN ISO 18119:2019
01-januar-2019
Plinske jeklenke - Nevarjene plinske jeklenke in velike jeklenke iz jekla in
aluminijevih zlitin - Periodični pregled in preskušanje (ISO 18119:2018)
Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes -
Periodic inspection and testing (ISO 18119:2018)
Gasflaschen - Nahtlose Gasflaschen und Großflaschen aus Stahl und
Aluminiumlegierungen - Wiederkehrende Inspektion und Prüfung (ISO 18119:2018)
Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en alliages d'aluminium, sans
soudure - Contrôles et essais périodiques (ISO 18119:2018)
Ta slovenski standard je istoveten z: EN ISO 18119:2018
ICS:
23.020.35 Plinske jeklenke Gas cylinders
77.150.10 Aluminijski izdelki Aluminium products
SIST EN ISO 18119:2019 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 18119:2019

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SIST EN ISO 18119:2019


EN ISO 18119
EUROPÄISCHE NORM

EUROPEAN STANDARD

Oktober 2018
NORME EUROPÉENNE
ICS 23.020.35
Deutsche Fassung

Gasflaschen - Nahtlose Gasflaschen und Großflaschen aus
Stahl und Aluminiumlegierungen - Wiederkehrende
Inspektion und Prüfung (ISO 18119:2018)
Gas cylinders - Seamless steel and seamless aluminium- Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en
alloy gas cylinders and tubes - Periodic inspection and alliages d'aluminium, sans soudure - Contrôles et essais
testing (ISO 18119:2018) périodiques (ISO 18119:2018)
Diese Europäische Norm wurde vom CEN am 17. Mai 2018 angenommen.

Die CEN-Mitglieder sind gehalten, die CEN/CENELEC-Geschäftsordnung zu erfüllen, in der die Bedingungen festgelegt sind, unter
denen dieser Europäischen Norm ohne jede Änderung der Status einer nationalen Norm zu geben ist. Auf dem letzten Stand
befindliche Listen dieser nationalen Normen mit ihren bibliographischen Angaben sind beim CEN-CENELEC-Management-
Zentrum oder bei jedem CEN-Mitglied auf Anfrage erhältlich.

Diese Europäische Norm besteht in drei offiziellen Fassungen (Deutsch, Englisch, Französisch). Eine Fassung in einer anderen
Sprache, die von einem CEN-Mitglied in eigener Verantwortung durch Übersetzung in seine Landessprache gemacht und dem
Management-Zentrum mitgeteilt worden ist, hat den gleichen Status wie die offiziellen Fassungen.

CEN-Mitglieder sind die nationalen Normungsinstitute von Belgien, Bulgarien, Dänemark, Deutschland, der ehemaligen
jugoslawischen Republik Mazedonien, Estland, Finnland, Frankreich, Griechenland, Irland, Island, Italien, Kroatien, Lettland,
Litauen, Luxemburg, Malta, den Niederlanden, Norwegen, Österreich, Polen, Portugal, Rumänien, Schweden, der Schweiz,
Serbien, der Slowakei, Slowenien, Spanien, der Tschechischen Republik, der Türkei, Ungarn, dem Vereinigten Königreich und
Zypern.





EUROPÄISCHES KOMITEE FÜR NORMUNG
EUROPEAN COMMITTEE FOR STANDARDIZATION

COMITÉ EUROPÉEN DE NORMALISATION

CEN-CENELEC Management-Zentrum: Rue de la Science 23, B-1040 Brüssel
© 2018 CEN Alle Rechte der Verwertung, gleich in welcher Form und in welchem Ref. Nr. EN ISO 18119:2018 D
Verfahren, sind weltweit den nationalen Mitgliedern von CEN
vorbehalten.

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
Inhalt
Seite
Europäisches Vorwort . 6
Vorwort . 7
Einleitung . 8
1 Anwendungsbereich . 9
2 Normative Verweisungen . 9
3 Begriffe . 10
4 Abkürzungen und Symbole . 11
5 Zeitabstände zwischen den wiederkehrenden Inspektionen und Prüfungen . 11
6 Liste der Verfahren für wiederkehrende Inspektionen und Prüfungen . 12
7 Identifizierung der Gasflasche und Vorbereitung für Inspektion und Prüfungen . 13
8 Verfahren für Druckentlastung und Ventilausbau . 13
8.1 Allgemeines . 13
8.2 Gasflaschen, die Ventilausbau erfordern . 13
8.3 Gasflaschen, die keinen Ventilausbau erfordern . 13
8.4 Gasflaschen, die Kugelstrahlen erfordern . 14
9 Äußere Sichtprüfung . 14
9.1 Vorbereitung . 14
9.2 Inspektionsverfahren . 14
10 Inspektion des Flaschenhalses . 15
10.1 Flaschenventilgewinde . 15
10.2 Sonstige Halsoberflächen . 17
10.3 Beschädigte Hals-Innengewinde . 17
10.4 Anbringen von Halsring und -kragen . 18
11 Überprüfung des inneren Zustands . 18
11.1 Allgemeines . 18
11.2 Innere Sichtprüfung . 18
11.2.1 Vorbereitung . 18
11.2.2 Inspektionsanforderungen . 19
11.2.3 Gasflaschen mit Fußringen . 19
11.2.4 Gasflaschen mit innerer Beschichtung . 20
12 Zusätzliche Prüfungen . 20
12.1 Allgemeines . 20
12.2 Zusätzliche Prüfung für nahtlose Gasflaschen aus Aluminiumlegierungen mit möglichen
Wärmeschäden . 20
12.3 Hammerprüfung an Gasflaschen mit Fußringen . 20
13 Reparatur von Flaschen . 21
14 Druckprüfung oder UT . 21
14.1 Allgemeines . 21
14.2 Druckprüfung . 22
14.2.1 Allgemeines . 22
2

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
14.2.2 Prüfausrüstung. 22
14.2.3 Prüfkriterien . 22
14.2.4 Annahmekriterien . 23
14.3 Hydraulische Volumenausdehnungsprüfung . 23
14.4 UT . 24
14.4.1 Allgemeines . 24
14.4.2 Anforderungen . 24
14.4.3 Kalibrierung . 28
14.4.4 Durchführung der Untersuchung . 32
14.4.5 Auswertung der Ergebnisse . 33
14.4.6 Aufzeichnungen . 34
15 Inspektion des Ventils und anderer Zubehörteile . 34
16 Austausch von Flaschenteilen . 35
17 Abschließende Arbeitsgänge . 35
17.1 Trocknung, Reinigung und Farbanstrich . 35
17.1.1 Trocknung und Reinigung . 35
17.1.2 Farbanstrich und Beschichtung . 35
17.2 Wiedereindrehen des Ventils in die Flasche . 36
17.3 Überprüfung der Tara der Flasche. 36
17.4 Kennzeichnung der wiederkehrenden Prüfung . 37
17.4.1 Allgemeines . 37
17.4.2 Stempelung . 37
17.5 Verweisung auf das Datum der nächsten wiederkehrenden Inspektion und Prüfung . 37
17.6 Identifizierung des Inhalts . 37
17.7 Aufzeichnungen . 38
18 Zurückweisung und Außerbetriebnahme von Flaschen . 38
18.1 Allgemeines . 38
18.2 Flaschen mit angebrachtem Ventil . 38
18.3 Flaschen ohne Ventil . 39
Anhang A (informativ) Fristen für die wiederkehrende Inspektion und Prüfung . 40
Anhang B (normativ) Beschreibung, Beurteilung von Fehlern sowie Bedingungen für die
Zurückweisung von nahtlosen Gasflaschen aus Stahl und Aluminiumlegierungen zum
Zeitpunkt der wiederkehrenden Inspektion . 41
B.1 Allgemeines . 41
B.2 Physikalische oder werkstoffbezogene Fehler. 42
B.3 Korrosion . 44
B.3.1 Allgemeines . 44
B.3.2 Korrosionsarten. 44
B.3.3 Technische Grundlage für die Bestimmung der maximal zulässigen Fehlergrößen durch
UT . 47
B.4 Risse in Flaschenhals und -schulter . 51
B.4.1 Allgemeines . 51
B.4.2 Risse im Flaschenhals . 51
B.4.3 Risse in der Flaschenschulter . 51
Anhang C (informativ) Auflistung von Gasen, die eine korrosive Wirkung auf den
Flaschenwerkstoff haben . 52
Anhang D (informativ) Volumenausdehnungsprüfung von Gasflaschen . 53
D.1 Allgemeines . 53
D.2 Prüfausrüstung. 53
D.3 Volumenausdehnungsprüfung mit Wasserbad . 54
D.3.1 Allgemeines . 54
D.3.2 Volumenausdehnungsprüfung mit Wasserbad — Verfahren mit Ausgleichsbürette . 55
3

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
D.3.3 Volumenausdehnungsprüfung mit Wasserbad — Verfahren mit feststehender Bürette . 56
D.4 Volumenausdehnungsprüfung ohne Wasserbad . 57
D.4.1 Allgemeines . 57
D.4.2 Prüfanforderung . 58
D.4.3 Prüfverfahren . 59
D.4.4 Berechnung der Kompressibilität von Wasser . 60
D.4.5 Berechnungsbeispiel . 61
Anhang E (informativ) Prüfdatumringe für Gasflaschen . 62
Anhang F (informativ) Reinigung von nahtlosen Gasflaschen aus Aluminiumlegierungen . 63
F.1 Innen . 63
F.2 Außen . 63
Literaturhinweise . 64

Bilder
Bild 1 — Beispiel einer kalibrierten Lochlehre für das Gewinde (Gewinde – nicht bestanden). 15
Bild 2 — Beispiel einer Grenzlochlehre (Gewinde – bestanden) . 16
Bild 3 — Überprüfung der Unrundheit . 16
Bild 4 — Risse im Flaschenhals . 17
Bild 5 — Abzweigmarkierungen . 17
Bild 6 — Beispiele zweier Arten von Ausrüstungen der UT für Flaschen . 24
Bild 7 — Beispiel für die Lage des SBT des Referenzprüfkörpers, Seitenwand und Lage der
Kerbe . 25
Bild 8 — Beispiele für die Gestaltung von Umformern . 26
Bild 9 — Beispiele von Kopplungstechniken . 26
Bild 10 — Beispiele für Fehleralarm . 27
Bild 11 — Beispiele von Referenzkerben . 30
Bild 12 — Typische FBH-Kerbe . 31
Bild 13 — Amplitude der Referenzkerbe. 31
Bild 14 — Fehlererkennung in Flaschenenden mit Fußringen . 33
Bild 15 — Erkennungsbeispiel von Rissen in Querrichtung . 34
Bild B.1 — Einschnitt oder Riefe . 46
Bild B.2 — Riss . 46
Bild B.3 — Allgemeine Korrosion . 46
Bild B.4 — Linienförmige Korrosion oder Lochfraßkette . 46
Bild B.5 — Vereinzelte Krater . 47
Bild B.6 — Maximale zulässige Fehlergrößen für nahtlose Gasflaschen aus Stahl verschiedener
Zusammensetzungen . 49
Bild B.7 — Maximale zulässige Fehlergrößen für nahtlose Gasflaschen aus
Aluminiumlegierungen . 50
Bild B.8 — Beispiel der X- und Y-Referenzpunkte für die Kerbenlage . 50
Bild B.9 — Risse in der Flaschenschulter . 51
Bild D.1 — Volumenausdehnungsprüfung mit Wasserbad (Verfahren mit Ausgleichsbürette). 55
Bild D.2 — Volumenausdehnungsprüfung mit Wasserbad (Verfahren mit feststehender Bürette) . 57
Bild D.3 — Verfahren ohne Wasserbad — Schematische Darstellung der Prüfeinrichtung für
Flaschen . 58

4

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
Tabellen
Tabelle 1 — Maximale Differenzen zwischen Gewichtsmessung mit Waage und
gekennzeichneter Tara . 37
Tabelle A.1 — Zeitabstände für wiederkehrende Inspektionen und Prüfungen . 40
Tabelle B.1 — Kriterien der Zurückweisung bezüglich physikalischer und Materialfehler im
Flaschenkörper . 42
Tabelle B.2 — Kriterien der Zurückweisung für Korrosion der Flaschenwand . 44
Tabelle B.3 — Maximale zulässige Fehlergröße für die UT-Annahme/-Zurückweisung . 48
Tabelle C.1 — Gase, die eine korrosive Wirkung auf den Flaschenwerkstoff haben . 52
Tabelle D.1 — Werte des Faktors K . 60
Tabelle E.1 — System, das Farben und Ringe nutzt, um die Daten der wiederkehrenden
Inspektion zu identifizieren . 62
Tabelle F.1 — Typische Reinigungsverfahren für das Innere einer nahtlosen Gasflasche aus
Aluminiumlegierungen . 63

5

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
Europäisches Vorwort
Dieses Dokument (EN ISO 18119:2018) wurde vom Technischen Komitee ISO/TC 58 „Gas cylinders“ in
Zusammenarbeit mit dem Technischen Komitee CEN/TC 23 „Ortsbewegliche Gasflaschen“ erarbeitet, dessen
Sekretariat von BSI gehalten wird.
Diese Europäische Norm muss den Status einer nationalen Norm erhalten, entweder durch Veröffentlichung
eines identischen Textes oder durch Anerkennung bis April 2019, und etwaige entgegenstehende nationale
Normen müssen bis April 2019 zurückgezogen werden.
Es wird auf die Möglichkeit hingewiesen, dass einige Elemente dieses Dokuments Patentrechte berühren
können. CEN ist nicht dafür verantwortlich, einige oder alle diesbezüglichen Patentrechte zu identifizieren.
Entsprechend der CEN-CENELEC-Geschäftsordnung sind die nationalen Normungsinstitute der folgenden
Länder gehalten, diese Europäische Norm zu übernehmen: Belgien, Bulgarien, Dänemark, Deutschland, die
ehemalige jugoslawische Republik Mazedonien, Estland, Finnland, Frankreich, Griechenland, Irland, Island,
Italien, Kroatien, Lettland, Litauen, Luxemburg, Malta, Niederlande, Norwegen, Österreich, Polen, Portugal,
Rumänien, Schweden, Schweiz, Serbien, Slowakei, Slowenien, Spanien, Tschechische Republik, Türkei,
Ungarn, Vereinigtes Königreich und Zypern.
Anerkennungsnotiz
Der Text von ISO 18119:2018 wurde von CEN als EN ISO 18119:2018 ohne irgendeine Abänderung
genehmigt.
6

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SIST EN ISO 18119:2019
EN ISO 18119:2018 (D)
Vorwort
ISO (die Internationale Organisation für Normung) ist eine weltweite Vereinigung nationaler
Normungsorganisationen (ISO-Mitgliedsorganisationen). Die Erstellung von Internationalen Normen wird
üblicherweise von Technischen Komitees von ISO durchgeführt. Jede Mitgliedsorganisation, die Interesse an
einem Thema hat, für welches ein Technisches Komitee gegründet wurde, hat das Recht, in diesem Komitee
vertreten zu sein. Internationale staatliche und nichtstaatliche Organisationen, die in engem Kontakt mit ISO
stehen, nehmen ebenfalls an der Arbeit teil. ISO arbeitet bei allen elektrotechnischen Themen eng mit der
Internationalen Elektrotechnischen Kommission (IEC) zusammen.
Die Verfahren, die bei der Entwicklung dieses Dokuments angewendet wurden und die für die weitere Pflege
vorgesehen sind, werden in den ISO/IEC-Direktiven, Teil 1 beschrieben. Es sollten insbesondere die
unterschiedlichen Annahmekriterien für die verschiedenen ISO-Dokumentenarten beachtet werden. Dieses
Dokument wurde nach den Gestaltungsregeln der ISO/IEC-Direktiven, Teil 2 erarbeitet (siehe
www.iso.org/directives).
Es wird auf die Möglichkeit hingewiesen, dass einige Elemente dieses Dokuments Patentrechte berühren
können. ISO ist nicht dafür verantwortlich, einige oder alle diesbezüglichen Patentrechte zu identifizieren.
Details zu allen während der Entwicklung des Dokuments identifizierten Patentrechten finden sich in der
Einleitung und/oder in der ISO-Liste der erhaltenen Patenterklärungen (siehe www.iso.org/patents).
Jeder in diesem Dokument verwendete Handelsname dient nur zur Unterrichtung der Anwender und
bedeutet keine Anerkennung.
Eine Erläuterung zum freiwilligen Charakter von Normen, der Bedeutung ISO-spezifischer Begriffe und
Ausdrücke in Bezug auf Konformitätsbewertungen sowie Informationen darüber, wie ISO die Grundsätze der
Welthandelsorganisation (WTO) hinsichtlich technischer Handelshemmnisse (TBT) berücksichtigt, enthält
der folgende Link: www.iso.org/iso/foreword.html.
Dieses Dokument wurde vom Technischen Komitee
...

SLOVENSKI STANDARD
oSIST prEN ISO 18119:2015
01-september-2015
3OLQVNHMHNOHQNH1HYDUMHQHMHNOHQHLQDOXPLQLMHYH]OLWLQHSOLQVNLKMHNOHQNLQFHYL
3HULRGLþQLSUHJOHGLQSUHVNXãDQMH ,62',6
Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes -
Periodic inspection and testing (ISO/DIS 18119:2015)
Gasflaschen - Nahtlose Gasflaschenund Großflaschen aus Stahl und
Aluminiumlegierungen - Wiederkehrende Inspektion und Prüfung (ISO/DIS 18119:2015)
Bouteilles à gaz - Bouteilles à gaz en acier et en alliages d'aluminium, sans soudure -
Contrôles et essais périodiques (ISO/DIS 18119:2015)
Ta slovenski standard je istoveten z: prEN ISO 18119
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
oSIST prEN ISO 18119:2015 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 18119:2015

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oSIST prEN ISO 18119:2015
DRAFT INTERNATIONAL STANDARD
ISO/DIS 18119
ISO/TC 58/SC 4 Secretariat: ANSI
Voting begins on: Voting terminates on:
2015-07-02 2015-10-02
Gas cylinders — Seamless steel and seamless
aluminium-alloy gas cylinders and tubes --- Periodic
inspection and testing
Bouteilles à gaz — Bouteilles à gaz en acier et en alliages d’aluminium, sans soudure — Contrôles et
essais périodiques
ICS: 23.020.30
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for
Standardization (ISO), and processed under the ISO lead mode of collaboration
as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member
bodies for a parallel five month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments
received, will be submitted to a parallel two-month approval vote in ISO and
THIS DOCUMENT IS A DRAFT CIRCULATED
formal vote in CEN.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
composition will be undertaken at publication stage.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 18119:2015(E)
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. ISO 2015

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oSIST prEN ISO 18119:2015
ISO/DIS 18119:2015(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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oSIST prEN ISO 18119:2015
ISO/DIS 18119
Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols . 3
5 Intervals between periodic inspections and tests . 3
6 List of procedures for periodic inspections and tests . 4
7 Identification of cylinder and preparation for inspections and tests . 4
8 Depressurization and devalving procedures . 5
8.1 General . 5
8.2 Cylinders requiring devalving . 5
8.3 Cylinders not requiring devalving . 5
9 External visual inspection . 5
9.1 Preparation for external visual inspection . 5
9.2 Inspection procedure . 6
10 Inspection of cylinder neck . 6
10.1 Cylinder-to-valve threads . 6
10.2 Other neck surfaces. 7
10.3 Damaged internal neck threads . 7
10.4 Neckring and collar attachment . 7
11 Check of internal condition . 7
11.1 General . 7
11.2 Internal visual inspection . 7
11.2.1 Preparation for internal visual inspection . 7
11.2.2 Inspection requirements for visual internal inspection . 8
11.2.3 Cylinders with footrings . 8
12 Supplementary tests . 8
12.1 General . 8
12.2 Additional test for aluminium-alloy cylinders possibly subject to heat damage . 9
12.3 Hammer test on cylinders with footrings . 9
13 Pressure test or ultrasonic examination . 9
13.1 General . 9
13.2 Proof pressure test . 9
13.2.1 General . 9
13.2.2 Test equipment . 10
13.2.3 Test criteria. 10
13.2.4 Acceptance criteria . 10
13.3 Hydraulic volumetric expansion test . 10
13.4 Ultrasonic examination . 11
13.4.1 Scope . 11
13.4.2 Requirements . 11
13.4.3 Calibration . 15
13.4.4 Performing the examination . 19
13.4.5 Interpretation of results . 21
© ISO 2015 – All rights reserved iii

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oSIST prEN ISO 18119:2015
ISO/DIS 18119
13.4.6 Records . 21
14 Inspection of valve and other accessories . 22
15 Replacement of cylinder parts . 22
16 Cylinder repairs . 22
17 Final operations . 22
17.1 Drying, cleaning and painting . 22
17.1.1 Drying and cleaning . 22
17.1.2 Painting and coating . 22
17.2 Re-valving of the cylinder . 23
17.3 Check of cylinder tare weight . 23
17.4 Retest marking . 24
17.4.1 General . 24
17.4.2 Stamping . 24
17.5 Reference to next periodic inspection and test date . 24
17.6 Identification of contents. 24
17.7 Records . 24
18 Rejection and rendering cylinder unserviceable . 25
18.1 General . 25
18.2 Cylinders with a valve attached . 25
18.3 Cylinders with no valves attached . 25
Annex A (informative) Periodic inspection and test periods . 26
Annex B (normative) Description, evaluation of defects and conditions for rejection of seamless
steel and seamless aluminium-alloy gas cylinders at the time of periodic inspection . 27
B.1 General . 27
B.2 Physical or material defects . 27
B.3 Corrosion . 27
B.3.1 General . 27
B.3.2 Types of corrosion . 27
B.3.3 Technical basis for acceptance/rejection criteria by ultrasonic examination . 32
B.4 Neck and shoulder cracks . 35
B.4.1 Neck cracks . 35
B.4.2 Shoulder cracks . 35
Annex C (informative) Volumetric expansion testing of gas cylinders . 36
C.1 General . 36
C.2 Test equipment . 36
C.3 Water jacket volumetric expansion test . 36
C.3.1 General . 36
C.3.2 Water jacket volumetric expansion test — Levelling burette method . 37
C.3.3 Water jacket volumetric expansion test — Fixed burette method . 38
C.4 Non-water jacket volumetric expansion test . 38
C.4.1 General . 38
C.4.2 Requirement for testing . 40
C.4.3 Test method . 40
C.4.4 Calculation of compressibility of water . 41
C.4.5 Calculation example . 42
Annex D (informative) Test date rings for gas cylinders . 44
Annex E (informative) Cleaning of aluminium-alloy gas cylinders . 45
E.1 Internal . 45
E.2 External . 45
Bibliography . 46

iv © ISO 2015 – All rights reserved

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oSIST prEN ISO 18119:2015
ISO/DIS 18119
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 18119 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 4,
Operational requirements for gas cylinders.
This first edition cancels and replaces the second editions of ISO 6406:2005, ISO 10461:2005, with the
following specific changes:
a) An added section for symbols used in the document
b) A detailed account of steps to be taken if the actual cylinder wall thickness is less than the minimum
design wall thickness
c) A clearer way to ultrasonically test cylinders with a built-in footring, especially for steel cylinders with a
convex base
d) Improved guidelines for dealing with the effects of any heating in the case of aluminium-alloy cylinders

© ISO 2015 – All rights reserved v

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oSIST prEN ISO 18119:2015
ISO/DIS 18119
Introduction
This International Standard provides information and procedures for the periodic inspection and testing of
seamless steel and seamless aluminium-alloy cylinders and the condition of the test equipment. The principal
aim of periodic inspection and testing is that at the completion of the test the cylinders may be reintroduced
into service for a further period of time.

This International Standard requires that well-trained and competent inspectors undertake the work as
described in this standard, who consult the cylinder’s manufacturer if there are any doubts about aspects of
the standard, so that the cylinder manufacturer's current recommendations are taken into account.

ISO 18119 is intended to be used under a variety of national and international regulatory regimes. This
International Standard has been written so that it is suitable to be reference in the UN Model Regulations [1].
Where there is any conflict between this International Standard and any applicable regulation, the regulation
always takes precedence.
vi © ISO 2015 – All rights reserved

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oSIST prEN ISO 18119:2015
DRAFT INTERNATIONAL STANDARD ISO/DIS 18119

Gas cylinders — Seamless steel and seamless aluminium-alloy
gas cylinders and tubes — Periodic inspection and testing
1 Scope
This International Standard is applicable to seamless steel and seamless aluminium-alloy transportable gas
cylinders (single or those that comprise a bundle) intended for compressed and liquefied gases under
pressure, of water capacity from 0,5 l up to 150 l and to seamless steel and seamless aluminium-alloy
transportable gas tubes (single or those that comprise a bundle) intended for compressed and liquefied gases
under pressure, of water capacity greater than 150 l. It also applies, as far as practical, to cylinders of less
than 0,5 l water capacity.
This International Standard specifies the requirements for periodic inspection and testing to verify the integrity
of such gas cylinders and tubes to be re-introduced into service for a further period of time.
This International Standard does not apply to periodic inspection and maintenance of acetylene cylinders or to
the periodic inspection and testing of composite cylinders.
Unless noted by exception, the use of "cylinder" in this International Standard refers to both cylinders and
tubes.
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 9712, Non-destructive testing — Qualification and certification of NDT personnel
1)
ISO 10286:— , Gas cylinders — Terminology
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 11621, Gas cylinders — Procedures for change of gas service
ISO 13341, Gas cylinders — Fitting of valves to gas cylinders
ISO 13769, Gas cylinders — Stamp marking
ISO 22434, Transportable gas cylinders — Inspection and maintenance of cylinder valves
ISO 25760, Gas cylinders — Operational procedures for the safe removal of valves from gas cylinders

1) To be published.
© ISO 2015 – All rights reserved 1

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oSIST prEN ISO 18119:2015
ISO/DIS 18119
ISO/TR 22694, Gas cylinders — Methods for establishing acceptance/rejection criteria for flaws in seamless
steel and aluminium alloy cylinders at time of periodic inspection
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10286 and the following apply.
3.1
working pressure
settled pressure of a compressed gas (3.4) at a uniform reference temperature of 15 °C in a full gas cylinder
NOTE 1 to entry: In North America service pressure is often used to indicate a similar condition, usually at 21,1 °C
(70 °F).
NOTE 2 to entry: In East Asia service pressure is often used to indicate a similar condition, usually at 35 °C.
2)
Source: ISO 10286:—
3.2
SBT
sidewall-to-base transition region
3.3
FBH
flat bottom hole
3.4
compressed gas
gas which, when packaged under pressure, is entirely gaseous at −50 °C (including all gases with a critical
temperature less than or equal to −50 °C)
3.5
liquefied gas
gas which, when packaged under pressure, is partially liquid at temperatures above −50 °C
NOTE 1 to entry: A distinction is made between
a) high pressure liquefied gas: a gas with a critical temperature between −50 °C and 65 °C, and
b) low pressure liquefied gas: a gas with a critical temperature above 65 °C.
3.6
toxic gas
gas which is known to be so toxic or corrosive to humans to pose a health hazard or which is presumed to be
toxic or corrosive to humans because it has a LC value for acute toxicity equal to or less than
50
3
5 000 ml/m (ppm)
NOTE 1 to entry: Other risks such as tissue corrosiveness are sometimes associated.
2)
Source: ISO 10286:—
3.7
proof test pressure
hydraulic pressure which demonstrates the structural integrity of the manifold

2) To be published.
2 © ISO 2015 – All rights reserved

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oSIST prEN ISO 18119:2015
ISO/DIS 18119
3.8
rejected cylinder
cylinder not fit for service in its present condition
3.9
competent authority
any national body or authority designated or otherwise recognized as such, having jurisdiction for the transport
of dangerous goods and the approval of gas cylinders and tubes
NOTE 1 to entry: Adapted from UN Model Regulations [1].
3.10
minimum design wall thickness
thickness of the cylinder wall calculated from the design standard, taking into account the material properties
and dimensions at time of manufacture
4 Symbols
−1);
C, compressibility in square metres/Newton (Pa
D, depth of notch in ultrasonic test sample (mm)
K, factor for individual temperature (listed in Table C.1)
L, length of notch in ultrasonic test sample (mm)
P, pressure (bar);
V, cylinder water capacity (l)
W, width of notch in ultrasonic test sample (mm)
X, flaw length (mm)
Y, flaw depth ratio
t , minimum measured wall thickness of the calibration specimen (mm)
mc
t , minimum design wall thickness, (mm)
m
5 Intervals between periodic inspections and tests
A cylinder shall be due for periodic inspection and testing on its first receipt by a filler following the expiry of
the interval established in accordance with the requirements of national or international regulations or, in the
absence of regulations, in accordance with the United Nations Model Regulations [1] (see Annex A). The
expiry date is based on the last test date stamped on the cylinder. Other means of indicating the expiry date
are permitted.
Seamless steel or seamless aluminium-alloy cylinders used for self-contained breathing apparatus or self-
contained underwater breathing apparatus that are not covered by transport regulations shall be submitted for
inspection within the interval shown in Table A.1.
Provided the cylinder has not been subjected to abusive and abnormal conditions such as being involved in
an accident, heat exposure, or other severe conditions that would render the cylinder unsafe, there is no
requirement for the user to return a gas cylinder before the contents have been used even though the periodic
inspection and testing interval has lapsed.
© ISO 2015 – All rights reserved 3

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oSIST prEN ISO 18119:2015
ISO/DIS 18119
6 List of procedures for periodic inspections and tests
Each cylinder shall be submitted to periodic inspections and tests. The following procedures, where applicable,
form the requirements for such inspections and tests and are explained more fully in subsequent clauses:
a) identification of cylinder and preparation for inspection and tests (Clause 7);
b) depressurization and devalving procedures (Clause 8);
c) external visual inspection (Clause 9);
d) inspection of cylinder neck (Clause 10);
e) check of internal condition (Clause 11);
f) supplementary tests (Clause 12);
g) pressure test or ultrasonic examination (Clause 13);
h) inspection of valve and other accessories (Clause 14);
i) replacement of cylinder parts (Clause 15);
j) cylinder repairs (Clause 16);
k) final operations (Clause 17); and
l) rejection and rendering cylinder unserviceable (Clause 18).
The inspections and tests shall be carried out only by persons who are competent in the subject and
authorized under the relevant regulations. The testing facility shall establish a procedure to ensure inspectors
are trained and qualified to perform their job function. The eyesight acuity of inspectors is critical.
It is recommended that the above listed procedures be performed in the sequence listed in order to improve
the safety of the operation and to detect potential harmful damage. In particular, the external visual inspection
(see Clause 9) shall be carried out before the pressure test, internal visual inspection (when required) or
ultrasonic examination (see Clause 13).
When a cylinder passes the above listed procedures but the condition of the cylinder remains in doubt,
additional, supplementary tests shall be performed to confirm its suitability for continued service (see
Clause 12) or the cylinder shall be rendered unserviceable.
Depending on the reason f
...

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