SIST EN ISO 11372:2012

SLOVENSKI STANDARD
SIST EN ISO 11372:2012
01-maj-2012
1DGRPHãþD
SIST EN 12754:2002
SIST EN 1801:1999
SIST EN 1801:1999/AC:2000
Plinske jeklenke - Jeklenke za acetilen - Pogoji in kontrola polnjenja (ISO
11372:2011)
Gas cylinders - Acetylene cylinders - Filling conditions and filling inspection (ISO
11372:2011)
Gasflaschen - Acetylenflaschen - Füllbedingungen und Inspektion beim Füllen (ISO
11372:2011)
Bouteilles à gaz - Bouteilles d'acétylène - Conditions de remplissage et de contrôle au
remplissage (ISO 11372:2011)
Ta slovenski standard je istoveten z: EN ISO 11372:2011
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
SIST EN ISO 11372:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11372:2012

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SIST EN ISO 11372:2012


EUROPEAN STANDARD
EN ISO 11372

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2011
ICS 23.020.30 Supersedes EN 12754:2001, EN 1801:1998
English Version
Gas cylinders - Acetylene cylinders - Filling conditions and filling
inspection (ISO 11372:2011)
Bouteilles à gaz - Bouteilles d'acétylène - Conditions de Gasflaschen - Acetylenflaschen - Füllbedingungen und
remplissage et de contrôle au remplissage (ISO Inspektion beim Füllen (ISO 11372:2011)
11372:2011)
This European Standard was approved by CEN on 15 October 2011.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11372:2011: E
worldwide for CEN national Members.

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SIST EN ISO 11372:2012
EN ISO 11372:2011 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 11372:2012
EN ISO 11372:2011 (E)
Foreword
This document (EN ISO 11372:2011) 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 June 2012, and conflicting national standards shall be withdrawn at
the latest by June 2012.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1801:1998, EN 12754:2001.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 11372:2011 has been approved by CEN as a EN ISO 11372:2011 without any modification.


3

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SIST EN ISO 11372:2012

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SIST EN ISO 11372:2012

INTERNATIONAL ISO
STANDARD 11372
Third edition
2011-12-15


Gas cylinders — Acetylene cylinders —
Filling conditions and filling inspection
Bouteilles à gaz — Bouteilles d'acétylène — Conditions de remplissage
et de contrôle au remplissage




Reference number
ISO 11372:2011(E)
©
ISO 2011

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SIST EN ISO 11372:2012
ISO 11372:2011(E)

COPYRIGHT PROTECTED DOCUMENT


©  ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland

ii © ISO 2011 – All rights reserved

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SIST EN ISO 11372:2012
ISO 11372:2011(E)
Contents Page
Foreword . iv
Introduction . v
1  Scope . 1
2  Terms and definitions . 1
3  Filling inspection . 3
3.1  General . 3
3.2  Pre-fill inspection . 3
3.3  Solvent content . 4
3.4  Inspection during filling . 5
3.5  Post-fill inspection . 6
4  Specific filling inspection of solvent-free acetylene cylinders . 6
4.1  Pre-fill inspection . 6
4.2  Post-fill inspection . 7
Annex A (informative) Safe operating diagram . 8
Annex B (normative) Determination of the solvent content in acetylene cylinders . 11
Bibliography . 13

© ISO 2011 – All rights reserved iii

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SIST EN ISO 11372:2012
ISO 11372:2011(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.
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 11372 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 4,
Operational requirements for gas cylinders.
This third edition cancels and replaces the second edition (ISO 11372:2005), with the following main technical
revisions:
a) ISO 11372:2005 was revised taking into account EN 12754 and EN 1801.
b) The clauses concerning filling inspection were restructured in order to better reflect the actual proceeding
of the filling inspection.
c) A new subclause 3.3 with requirements and information regarding the solvent content was added.
d) A new Clause 4 concerning the specific filling inspection of solvent-free acetylene cylinders was added.
e) A new informative Annex A introducing the Safe operating diagram was added in order to improve the
understanding of the importance of correct filling conditions for acetylene cylinders.
f) A new normative Annex B outlining the calculations necessary for determination of the solvent content
was added.

iv © ISO 2011 – All rights reserved

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SIST EN ISO 11372:2012
ISO 11372:2011(E)
Introduction
This International Standard aims at the harmonization of the different operating and filling conditions of
individual acetylene cylinders and covers requirements that reflect current practice and experience regarding
the inspection at the time of filling.
ISO 11372 is intended to be used under a variety of national regulatory regimes but has been written so that it
[1]
is suitable for the application of the UN Model Regulations .
Where there is any conflict between this International Standard and any applicable regulation, the regulation
always takes precedence.
In International Standards, weight is equivalent to a force, expressed in newtons. However, in common
parlance (as used in terms defined in this International Standard), the word “weight” continues to be used to
mean “mass”, but this practice is deprecated (see ISO 80000-4).
In this International Standard the unit bar is used, due to its universal use in the field of technical gases. It
should, however, be noted that bar is not an SI unit, and that the corresponding SI unit for pressure is
pascals (Pa).
Pressure values given in this International Standard are given as gauge pressure (pressure exceeding
atmospheric pressure) unless noted otherwise.

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SIST EN ISO 11372:2012

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SIST EN ISO 11372:2012
INTERNATIONAL STANDARD ISO 11372:2011(E)

Gas cylinders — Acetylene cylinders — Filling conditions and
filling inspection
1 Scope
This International Standard specifies minimum requirements for the filling conditions and filling inspection of
acetylene cylinders.
This International Standard is not applicable to an assembly of cylinders connected by a manifold, e.g.
bundles (see ISO 13088).
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
acetylene cylinder
cylinder manufactured and suitable for the transport of acetylene, containing a porous material and solvent
(where applicable) for acetylene, with a valve and other accessories affixed to the cylinder
NOTE 1 For solvent-free acetylene cylinders, see Clause 4.
NOTE 2 When there is no risk of ambiguity, the word “cylinder” is used.
2.2
cylinder shell
acetylene cylinders empty cylinder manufactured and suitable for receiving and containing a porous material
for use as part of an acetylene cylinder
2.3
filler
gas cylinders trained person responsible for inspection prior to, during and immediately after filling
2.4
maximum acetylene content
acetylene cylinders specified maximum weight of acetylene including saturation acetylene in the cylinder
2.5
maximum acetylene charge
acetylene cylinders maximum acetylene content minus the saturation gas
2.6
porous material
acetylene cylinders single- or multiple-component material introduced to or formed in the cylinder shell that,
due to its porosity, allows the absorption of a solvent/acetylene solution
NOTE The porous material may be either:
 monolithic, consisting of a solid product obtained by reacting materials or by materials connected together with a
binder, or
 non-monolithic, consisting of granular, fibrous or similar materials without the addition of a binder.
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SIST EN ISO 11372:2012
ISO 11372:2011(E)
2.7
residual gas
acetylene cylinders weight of acetylene including the saturation acetylene, contained in a cylinder returned
for filling
2.8
saturation gas
acetylene cylinders acetylene that remains dissolved in the solvent in the cylinder at atmospheric pressure
(1,013 bar) and at a temperature of 15 °C
2.9
solvent
acetylene cylinders liquid that is absorbed by the porous material and is capable of dissolving and releasing
acetylene
NOTE The following abbreviations are used:
 “A” for acetone;
 “DMF” for dimethylformamide.
2.10
specified solvent content
acetylene cylinders weight of solvent that the acetylene cylinder shall contain in accordance with the type
approval
2.11
tare
acetylene cylinders reference weight of the acetylene cylinder including the specified solvent content
NOTE 1 The tare is further specified in accordance with definitions 2.11.1 to 2.11.3.
NOTE 2 For cylinders with solvent, the tare is expressed by indicating either tare S or both, tare A and tare S. For
solvent-free acetylene cylinders, the tare is expressed by indicating tare F. For the tare used for cylinders in bundles, see
ISO 13088.
2.11.1
tare A
acetylene cylinders sum of the weights of the empty cylinder shell, the porous material, the specified solvent
content, the valve, the coating, where applicable, and all other parts which are permanently attached (e.g. by
clamping or bolting) to the cylinder when it is presented to be filled
2.11.2
tare S
acetylene cylinders tare A plus the weight of the saturation gas
2.11.3
tare F
acetylene cylinders tare A minus the specified solvent content
2.12
total weight
acetylene cylinders tare A plus the maximum acetylene content or tare S plus the maximum acetylene
charge, respectively
NOTE 1 For solvent-free cylinders, the total weight is tare F plus the maximum acetylene content.
NOTE 2 The stamped value can be less than the approved value.
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SIST EN ISO 11372:2012
ISO 11372:2011(E)
2.13
working pressure
acetylene cylinders settled pressure at a uniform reference temperature of 15 °C in a cylinder containing the
specified solvent content and the maximum acetylene content
3 Filling inspection
3.1 General
Each cylinder shall be submitted to an inspection prior to, during and immediately after filling. Filling of an
acetylene cylinder includes determination of its solvent content and replenishment of its solvent, where
applicable. The items described in 3.2 to 3.5 shall be covered by a filling inspection.
Cylinders not fulfilling these requirements shall be clearly identified for further treatment according to the
written procedures of the filling station.
Cylinder owners may request that their authorization be obtained prior to their cylinders being filled. Such
ownership shall be established and this authorization obtained before filling the cylinders.
The filling conditions of acetylene cylinders are established based on type testing according to ISO 3807 or
other applicable regulations/standards. Filling conditions for acetylene cylinders are shown in the Safe
operating diagram in Annex A, for information.
3.2 Pre-fill inspection
3.2.1 Verification of stamp-marking and necessary documentation
The information required in the following lists shall be made available to the filler, for example, by providing
him with appropriate documentation and by training.
Before filling an acetylene cylinder, it shall be identified that:
a) the cylinder is permitted for filling in the country of the filling station;
b) the cylinder has not exceeded its due date for periodic inspection;
c) the cylinder does not have a current history of problems;
d) the stamp marking (in accordance with regional regulatory requirements and/or ISO 13769) and labelling
(in accordance with regional regulatory requirements and/or ISO 7225) are appropriate to acetylene;
NOTE For sovent-free acetylene cylinders, additional marking elements according to 4.1 need to be verified.
e) the colour coding (in accordance with regional regulatory requirements and/or regional industry practice),
where applicable, is appropriate to acetylene.
Before filling an acetylene cylinder, the following information shall be made available:
1) identification of the porous material;
2) type of solvent;
3) specified solvent content;
4) tare (with information whe
...