Gas cylinders - Cylinder bundles - Design, manufacture, testing and inspection (ISO 10961:2019)

This document specifies the requirements for the design, construction, testing and initial inspection of a transportable cylinder bundle.
It is applicable to cylinder bundles containing cylinders containing compressed gas, liquefied gas and mixtures thereof. It is also applicable to cylinder bundles for acetylene. Additional requirements for acetylene cylinder bundles containing acetylene in a solvent are provided in Annex B. This document does not, however, cover acetylene cylinder bundles with solvent‐free acetylene cylinders.
This document specifies the additional requirements that apply when individual cylinders are assembled into a bundle. Unless otherwise stated, individual cylinders within a cylinder bundle conform to applicable standards for single cylinders.
This document is intended primarily for industrial gases other than liquefied petroleum gas (LPG), but it can also be used for LPG.
This document does not apply to packages in which cylinders are manifolded together in a frame that is designed to be fixed permanently to a road vehicle, to a railway wagon or to the ground as a customer storage vessel. It also does not apply to cylinder bundles that are designed for use in extreme environmental or operational conditions (e.g. offshore cylinder bundles) when additional and extraordinary requirements are imposed to maintain safety standards, reliability and performance.

Gasflaschen - Flaschenbündel - Auslegung, Herstellung, Prüfung und Inspektion (ISO 10961:2019)

Dieses Dokument legt die Anforderungen an Auslegung, Bau, Prüfung und Erstinspektion eines ortsbeweglichen Flaschenbündels fest.
Es gilt für Flaschenbündel, die aus Flaschen bestehen, die verdichtete Gase, verflüssigte Gase und deren Gemische enthalten. Es gilt auch für Acetylen-Flaschenbündel. Zusätzliche Anforderungen an Acetylen-Flaschenbündel, die Acetylen in einem Lösemittel enthalten, sind in Anhang B angegeben. Dieses Dokument gilt jedoch nicht für Acetylen-Flaschenbündel mit lösemittelfreien Acetylenflaschen.
Dieses Dokument legt die zusätzlichen Anforderungen fest, die gelten, wenn einzelne Flaschen in einem Bündel zusammengefasst werden. Sofern nicht anders angegeben, entsprechen in einem Flaschenbündel enthaltene einzelne Flaschen den anwendbaren Normen für einzelne Flaschen.
Dieses Dokument gilt in erster Linie für andere Industriegase als Flüssiggas (en: liquefied petroleum gas, LPG), es kann jedoch auch im Falle von LPG angewendet werden.
Dieses Dokument gilt nicht für Einheiten, in denen die Flaschen über Sammelleitungen in einem Stützrahmen miteinander verbunden sind, der für die dauerhafte Befestigung an einem Straßenfahrzeug, einem Eisenbahnwagen oder am Boden als Lagerbehälter beim Kunden ausgelegt ist. Es gilt auch nicht für Flaschenbündel, die für die Verwendung unter extremen Umwelt- oder Betriebsbedingungen ausgelegt sind (z. B. Offshore-Flaschenbündel), bei denen zusätzliche und außergewöhnliche Anforderungen gelten, um Sicherheitsstandards, Zuverlässigkeit und Leistungsfähigkeit aufrechtzuerhalten.

Bouteilles à gaz - Cadres de bouteilles - Conception, fabrication, essais et inspection (ISO 10961:2019)

Le présent document spécifie les exigences de conception, de fabrication, d'essai et d'inspection initiale d'un cadre de bouteilles transportable.
Il s'applique aux cadres de bouteilles remplies de gaz comprimé, de gaz liquéfié et de mélange de gaz comprimés et liquéfiés. Il s'applique également aux cadres de bouteilles d'acétylène. L'Annexe B fournit des exigences supplémentaires pour les cadres de bouteilles d'acétylène remplies d'acétylène dans un solvant. En revanche, le présent document ne traite pas des cadres de bouteilles remplies d'acétylène sans solvant.
Cette norme spécifie les exigences supplémentaires applicables aux bouteilles assemblées dans un cadre. Sauf mention contraire, chaque bouteille dans un cadre de bouteille doit se conformer aux normes applicables aux bouteilles.
Le présent document est prioritairement prévu pour les gaz industriels autres que le gaz de pétrole liquéfié (GPL), mais il peut également être utilisé pour le GPL.
Le présent document ne s'applique pas aux assemblages dans lesquels les bouteilles sont reliées à un tuyau collecteur commun dans un châssis conçu pour être fixé de manière permanente à un véhicule routier, à un wagon ferroviaire ou au sol en tant que réservoir de stockage client. Il n'est pas non plus applicable aux cadres de bouteilles conçus pour une utilisation dans des conditions environnementales ou d'exploitation extrêmes (par exemple les cadres de bouteilles pour une utilisation en mer), lorsque des exigences exceptionnelles sont imposées pour le maintien des normes de sécurité, de la fiabilité et de la performance.

Plinske jeklenke - Snopi jeklenk - Konstruiranje, proizvodnja, preskušanje in kontrola (ISO 10961:2019)

Ta standard določa zahteve za konstruiranje, proizvodnjo, preskušanje in začetno kontrolo premičnih snopov jeklenk. Uporablja se za snope jeklenk, ki vsebujejo jeklenke s stisnjenim plinom, utekočinjenim plinom in mešanico teh plinov. Uporablja se tudi za snope jeklenk za acetilen. Dodatne zahteve za snope jeklenk za acetilen, ki vsebujejo acetilen v topilu, so podane v dodatku B. Vendar ta dokument ne zajema snopov jeklenk za acetilen, v katerih so jeklenke za acetilen brez topila. Ta dokument določa dodatne zahteve, ki veljajo, ko so posamezne jeklenke sestavljene v snop. Posamezne jeklenke znotraj snopa so skladne z veljavnimi standardi za posamezne jeklenke, razen če je navedeno drugače. Ta dokument se uporablja predvsem za industrijske pline, ki niso utekočinjen naftni plin (UNP), vendar se lahko uporablja tudi za UNP. Ta dokument se ne uporablja za embalažo, v kateri so jeklenke zbrane v okvirju, ki je namenjen stalni namestitvi na cestno vozilo, železniški vagon ali tla kot odjemalčeva posoda za shranjevanje. Prav tako se ne uporablja za snope jeklenk, ki so namenjeni za uporabo v izrednih okoljskih ali delovnih pogojih (npr. snopi jeklenk na morju), pri katerih so določene dodatne in izredne zahteve za ohranjanje varnostnih standardov, zanesljivosti in lastnosti.

General Information

Status
Published
Publication Date
03-Dec-2019
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
04-Dec-2019
Completion Date
04-Dec-2019

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SLOVENSKI STANDARD
SIST EN ISO 10961:2020
01-februar-2020
Nadomešča:
SIST EN ISO 10961:2012
Plinske jeklenke - Snopi jeklenk - Konstruiranje, proizvodnja, preskušanje in
kontrola (ISO 10961:2019)

Gas cylinders - Cylinder bundles - Design, manufacture, testing and inspection (ISO

10961:2019)

Gasflaschen - Flaschenbündel - Auslegung, Herstellung, Prüfung und Inspektion (ISO

10961:2019)

Bouteilles à gaz - Cadres de bouteilles - Conception, fabrication, essais et inspection

(ISO 10961:2019)
Ta slovenski standard je istoveten z: EN ISO 10961:2019
ICS:
23.020.35 Plinske jeklenke Gas cylinders
SIST EN ISO 10961:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 10961:2020
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SIST EN ISO 10961:2020
EN ISO 10961
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2019
EUROPÄISCHE NORM
ICS 23.020.35 Supersedes EN ISO 10961:2012
English Version
Gas cylinders - Cylinder bundles - Design, manufacture,
testing and inspection (ISO 10961:2019)

Bouteilles à gaz - Cadres de bouteilles - Conception, Gasflaschen - Flaschenbündel - Auslegung, Herstellung,

fabrication, essais et inspection (ISO 10961:2019) Prüfung und Inspektion (ISO 10961:2019)

This European Standard was approved by CEN on 12 November 2019.

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, Republic of North Macedonia, 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

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10961:2019 E

worldwide for CEN national Members.
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SIST EN ISO 10961:2020
EN ISO 10961:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 10961:2020
EN ISO 10961:2019 (E)
European foreword

This document (EN ISO 10961:2019) 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 2020, and conflicting national standards shall be

withdrawn at the latest by June 2020.

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 supersedes EN ISO 10961:2012.

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, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 10961:2019 has been approved by CEN as EN ISO 10961:2019 without any modification.

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SIST EN ISO 10961:2020
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SIST EN ISO 10961:2020
INTERNATIONAL ISO
STANDARD 10961
Third edition
2019-11
Gas cylinders — Cylinder bundles
— Design, manufacture, testing and
inspection
Bouteilles à gaz — Cadres de bouteilles — Conception, fabrication,
essais et inspection
Reference number
ISO 10961:2019(E)
ISO 2019
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SIST EN ISO 10961:2020
ISO 10961:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

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 2019 – All rights reserved
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SIST EN ISO 10961:2020
ISO 10961:2019(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Design .............................................................................................................................................................................................................................. 5

4.1 General ........................................................................................................................................................................................................... 5

4.2 Materials ....................................................................................................................................................................................................... 5

4.3 Frame .............................................................................................................................................................................................................. 5

4.4 Cylinders ....................................................................................................................................................................................................... 7

4.5 Cylinder valves and cylinder fittings .................................................................................................................................... 7

4.6 Manifold ........................................................................................................................................................................................................ 7

4.7 Main connection(s) and main valve(s) ............................................................................................................................... 8

4.8 Assembled bundle ................................................................................................................................................................................ 8

5 Manufacturing ......................................................................................................................................................................................................... 8

6 Identification ............................................................................................................................................................................................................ 9

6.1 General ........................................................................................................................................................................................................... 9

6.2 Product and hazard identification.......................................................................................................................................... 9

6.2.1 Precautionary labels ..................................................................................................................................................... 9

6.2.2 Colour coding ...................................................................................................................................................................... 9

6.3 Bundle identification for filling ................................................................................................................................................. 9

6.4 Other useful information ................................................................................................................................................................ 9

7 Type approval procedure ............................................................................................................................................................................ 9

7.1 General ........................................................................................................................................................................................................... 9

7.2 Type testing ............................................................................................................................................................................................10

7.2.1 Frame ......................................................................................................................................................................................10

7.2.2 Manifold ................................................................................................................................................................................10

7.2.3 Bundle ....................................................................................................................................................................................10

7.2.4 Drop tests ............................................................................................................................................................................10

7.3 Testing and inspection at time of manufacture .......................................................................................................13

7.3.1 Frame ......................................................................................................................................................................................13

7.3.2 Manifold ................................................................................................................................................................................13

7.3.3 Bundle ....................................................................................................................................................................................13

8 Documentation ....................................................................................................................................................................................................14

Annex A (normative) Special requirements for design, manufacture and testing of bundles

when cylinders are removed from the frame at the time of filling, including

acetylene cylinders .........................................................................................................................................................................................15

Annex B (normative) Additional requirements for acetylene cylinder bundles .................................................16

Annex C (informative) Example of bundle identification for filling in accordance with UN

[1]

Model Regulations .......................................................................................................................................................................................21

Bibliography .............................................................................................................................................................................................................................24

© ISO 2019 – All rights reserved iii
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SIST EN ISO 10961:2020
ISO 10961:2019(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 of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 4,

Operational requirements of gas cylinders.

This third edition cancels and replaces the second edition (ISO 10961:2010), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— the terminology was brought in line with ISO 10286, as far as possible,
— storage was added throughout the document as a possible use case,
— the descriptions of the drop tests were clarified,
— the descriptions of the leak tests were clarified,
— a new figure was added showing the angle for the vertical drop test,

— the rotating drop test has been differentiated by whether the bundle is fitted with cylinders

vertically or horizontally,
— the additional requirements for acetylene cylinder bundles were clarified,

— the information for the bundle identification for filling was moved to Annex C.

Any feedback or questions on this document should be directed to the user's national standards body. A

complete listing of these bodies can be found at https:// www .iso .org/ members .html.

iv © ISO 2019 – All rights reserved
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SIST EN ISO 10961:2020
ISO 10961:2019(E)
Introduction

For some applications, the contents of an individual gas cylinder might not satisfy the gas demand, in

which case assemblies of cylinders can be used to supply larger volumes of gas in a single unit. The

single unit, which contains a number of cylinders, is known as a cylinder bundle.

Such a cylinder bundle is a portable assembly, designed to be routinely lifted, that consists of a frame

and two or more cylinders connected to a manifold by cylinder valves or fittings so that the cylinders

can be filled, transported and emptied without disassembly.

A cylinder bundle can be subjected to rough handling in the course of normal operations.

There are types of gas cylinder assemblies that use cylinder bundle components but are designed to be

disassembled at each filling to enable the cylinders to be filled individually. Although these assemblies

do not conform to the basic definition of a cylinder bundle, they are commonly referred to as bundles.

Their special requirements are provided in Annex A.

Acetylene cylinder bundles are often filled without disassembly. The confirmation of solvent content

can be achieved with or without disassembling the bundle. Replenishing of solvent is usually done after

a defined number of fillings. Their special requirements are provided in Annex B.

In International Standards, weight is equivalent to a force, expressed in Newton. However, in common

parlance (as used in terms defined in this document), the word “weight” continues to be used to mean

“mass”, but this practice is deprecated (see ISO 80000-4).
[1]

This document has been written so that it is suitable to be referenced in the UN Model Regulations .

© ISO 2019 – All rights reserved v
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SIST EN ISO 10961:2020
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SIST EN ISO 10961:2020
INTERNATIONAL STANDARD ISO 10961:2019(E)
Gas cylinders — Cylinder bundles — Design, manufacture,
testing and inspection
1 Scope

This document specifies the requirements for the design, construction, testing and initial inspection of

a transportable cylinder bundle.

It is applicable to cylinder bundles containing cylinders containing compressed gas, liquefied gas and

mixtures thereof. It is also applicable to cylinder bundles for acetylene. Additional requirements for

acetylene cylinder bundles containing acetylene in a solvent are provided in Annex B. This document

does not, however, cover acetylene cylinder bundles with solvent-free acetylene cylinders.

This document specifies the additional requirements that apply when individual cylinders are

assembled into a bundle. Unless otherwise stated, individual cylinders within a cylinder bundle

conform to applicable standards for single cylinders.

This document is intended primarily for industrial gases other than liquefied petroleum gas (LPG), but

it can also be used for LPG.

This document does not apply to packages in which cylinders are manifolded together in a frame

that is designed to be fixed permanently to a road vehicle, to a railway wagon or to the ground

as a customer storage vessel. It also does not apply to cylinder bundles that are designed for use in

extreme environmental or operational conditions (e.g. offshore cylinder bundles) when additional and

extraordinary requirements are imposed to maintain safety standards, reliability and performance.

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 3807, Gas cylinders — Acetylene cylinders — Basic requirements and type testing

ISO 9606-1, Qualification testing of welders — Fusion welding — Part 1: Steels
ISO 10297, Gas cylinders — Cylinder valves — Specification and type testing
ISO 10286:2015, 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 13585, Brazing — Qualification test of brazers and brazing operators

ISO 14113, Gas welding equipment — Rubber and plastics hose and hose assemblies for use with industrial

gases up to 450 bar (45 MPa)

ISO 15607, Specification and qualification of welding procedures for metallic materials — General rules

ISO 15615:2013, Gas welding equipment — Acetylene manifold systems for welding, cutting and allied

processes — Safety requirements in high-pressure devices
© ISO 2019 – All rights reserved 1
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SIST EN ISO 10961:2020
ISO 10961:2019(E)
ISO 16964, Gas cylinders — Flexible hoses assemblies — Specification and testing
EN 13134, Brazing — Procedure approval
3 Terms and definitions

For the purposes of this document, the terms and definitions 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
cylinder bundle
bundle of cylinders

assembly of cylinders that are fastened together and interconnected by a manifold and transported as a

unit having a total water capacity not exceeding 3 000 l

Note 1 to entry: In ISO/TC 58 documents the term “bundle” is frequently used for simplification.

Note 2 to entry: Bundles intended for the transport of toxic gases shall be limited to 1 000 l total water capacity.

[SOURCE: ISO 10286:2015, 204, modified — preferred term and admitted term reversed, "which are"

deleted and requirement for toxic gases moved into Note 2 to entry]
3.2
frame

structural and non-structural members of a bundle that combine all other components together, whilst

providing protection for the bundle's cylinders, valves (3.3) and manifold (3.5) and which enable the

bundle to be transported
[SOURCE: ISO 10286:2015, 264]
3.3
cylinder valve

valve that is fitted into a cylinder and to which a manifold (3.5) is connected in a bundle (3.1)

3.4
cylinder fitting

component with no gas shut-off capability that serves as a method for connecting a bundle's manifold

(3.5) to its individual cylinders when cylinder valves (3.3) are not fitted to the cylinders

3.5
manifold

piping system for connecting pressure receptacle(s) valves or fittings (3.4) to the main valve(s) (3.6) or

the main connection(s) (3.7)
[SOURCE: ISO 10286:2015, 265]
3.6
main valve

valve which is fitted to the manifold (3.5) of a bundle (3.1), isolating it from the main connection(s) (3.7)

[SOURCE: ISO 10286:2015, 267, modified — battery vehicle/battery wagon/MEGC deleted]

3.7
main connection
means of making a gas connection to a bundle (3.1)
[SOURCE: ISO 10286:2015, 266, modified — battery vehicle/MEGC deleted]
2 © ISO 2019 – All rights reserved
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SIST EN ISO 10961:2020
ISO 10961:2019(E)
3.8
tare

weight of the pressure receptacle when empty, including accessories fitted as presented for filling

Note 1 to entry: Additional information regarding tare for acetylene cylinder bundles is provided in B.2.

3.9
maximum gross weight
sum of the tare of the bundle (3.1) and the maximum permissible filling weight

Note 1 to entry: Maximum gross weight is to be understood as "maximum gross mass" as per regional transport

regulations.
[SOURCE: ISO 10286:2015, 743, amended — Note 1 to entry added]
3.10
compressed gas

gas, which, when packaged under pressure for transport, is entirely gaseous at –50 °C

Note 1 to entry: This category includes all gases with a critical temperature less than or equal to −50 °C.

[SOURCE: ISO 10286:2015, 705]
3.11
liquefied gas

gas, which, when packaged for transport, is partially liquid (or solid) at temperatures above –50 °C

Note 1 to entry: A distinction is made between

— high pressure liquefied gas, which is a gas with a critical temperature between –50 °C and +65 °C; and

— low pressure liquefied gas, which is a gas with a critical temperature above +65 °C.

[SOURCE: ISO 10286:2015, 706, modified — Note 1 to entry added to incorporate definitions in

ISO 10286:2015, 707 and 708]
3.12
test pressure
required pressure applied during a pressure test

Note 1 to entry: In some cases, the test pressure of the bundle can be different from the test pressure of the

cylinders in the bundle.
[SOURCE: ISO 10286:2015, 729, modified — Note 1 to entry added]
3.13
burst pressure
highest pressure reached in a cylinder during a burst test
Note 1 to entry: The burst pressure also applies to hoses and manifolds.
[SOURCE: ISO 10286:2015, 732, modified — Note 1 to entry added]
3.14
working pressure

settled pressure of a compressed gas at a uniform reference temperature of 15 °C in

a full cylinder bundle

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.

© ISO 2019 – All rights reserved 3
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SIST EN ISO 10961:2020
ISO 10961:2019(E)

[SOURCE: ISO 10286:2015, 736, modified — “in a full gas cylinder” substituted with “in a full cylinder

bundle”]
3.15
maximum filling weight

product of the minimum guaranteed water capacity of the pressure receptacle and the filling ratio of

the gas contained
Note 1 to entry: For liquefied gas.
[SOURCE: ISO 10286:2015, 740]
3.16
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

5 000 ml/m (ppm)

Note 1 to entry: Other risks such as tissue corrosiveness are sometimes associated.

[SOURCE: ISO 10286:2015, 716]
3.17
filling pressure
pressure to which a cylinder bundle is filled at the time of filling

Note 1 to entry: It varies according to the gas temperature in the cylinder, which is dependent on the charging

parameters and the ambient conditions. It is normally higher than the working pressure (because of the heat of

compression) and always less than the test pressure.

[SOURCE: ISO 10286:2015, 734, modified — “cylinder” substituted with “cylinder bundle”]

3.18
bundle manufacturer

entity that assembles the various components of the bundle into its final configuration

3.19
inspection body
body that performs inspection

Note 1 to entry: An inspection body can be an organization, or part of an organization.

[SOURCE: ISO/IEC 17020:2012, 3.5]
3.20
competent authority

any body or authority designated or otherwise recognized as such for any purpose in each country by

its government
[1]

Note 1 to entry: “Competent body” is not to be used; UN Model Regulations only use “competent authority” and

“inspection body."
[SOURCE: ISO 10286:2015, 620]
3.21
saturation gas

amount of acetylene needed to saturate the solvent at atmospheric pressure and a

temperature of 15 °C
4 © ISO 2019 – All rights reserved
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SIST EN ISO 10961:2020
ISO 10961:2019(E)
4 Design
4.1 General
The design of the bundle shall allow for the:

— inspection of all parts of the manifold for leaks during filling without obstructions;

— operation of all valves without requiring removal of any items such as shielding or a grill for the

protection of the manifold.

All pressurized components shall, as a minimum requirement, be designed to operate safely (e.g.

impact transition temperature for steels) in the temperature range of −20 °C to +65 °C. Operating at

temperatures outside this range can require that cylinders, valves and fittings be designed for the

appropriate temperature range.

Bundles that are filled by weight shall use component parts that are removable only with the use of

tools, with the exception of the main valve outlet protection cap.

If the bundle is intended for acetylene or toxic liquefied gas service, it shall be designed to allow

individual cylinders to be removed from the frame for filling in accordance with Annex A to ensure that

these cylinders are not overfilled.
4.2 Materials

Materials for cylinders, valves and all parts that are in contact with the intended gas shall be selected

in a
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