SIST EN ISO 11114-6:2022
(Main)Gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 6: Oxygen pressure surge testing (ISO 11114-6:2022)
Gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 6: Oxygen pressure surge testing (ISO 11114-6:2022)
This document specifies requirements for the test apparatus and test procedure in order to apply oxygen pressure surges consistently to devices being tested for resistance to adiabatic compression and to materials for oxygen compatibility.
Gasflaschen - Verträglichkeit von Werkstoffen für Gasflaschen und Ventile mit den in Berührung kommenden Gasen - Teil 6: Sauerstoff-Druckstoßprüfung (ISO 11114-6:2022)
Dieses Dokument legt Anforderungen für Prüfgerät und Prüfverfahren fest für das einheitliche Aufbringen von Sauerstoff-Druckstößen auf Einrichtungen, die auf ihre Zündfestigkeit durch adiabati-sche Verdichtung geprüft werden, sowie auf Werkstoffe im Fall der Prüfung auf Sauerstoffverträglichkeit.
Bouteilles à gaz - Compatibilité des matériaux des bouteilles et des robinets avec les contenus gazeux - Partie 6: Essai de compression adiabatique à l’oxygène (ISO 11114-6:2022)
Le présent document spécifie les exigences relatives à l’appareillage et au mode opératoire d’essai afin d’appliquer, de façon homogène, des surpressions d’oxygène aux dispositifs soumis à des essais de résistance à l’inflammation par compression adiabatique, ainsi qu’aux matériaux afin de vérifier leur compatibilité avec l’oxygène.
Plinske jeklenke - Združljivost materialov za ventil in jeklenko s plinom - 6. del: Adiabatni tlačni preskus s kisikom (ISO 11114-6:2022)
Ta dokument določa zahteve za preskusne naprave in preskusni postopek za dosledno uporabo povišanj tlaka kisika pri napravah, pri katerih se preskuša odpornost na adiabatno krčenje, ter materialih za namene preskusa združljivosti s kisikom.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 11114-6:2022
01-november-2022
Plinske jeklenke - Združljivost materialov za ventil in jeklenko s plinom - 6. del:
Adiabatni tlačni preskus s kisikom (ISO 11114-6:2022)
Gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 6:
Oxygen pressure surge testing (ISO 11114-6:2022)
Gasflaschen - Verträglichkeit von Werkstoffen für Gasflaschen und Ventile mit den in
Berührung kommenden Gasen - Teil 6: Sauerstoff-Druckstoßprüfung (ISO 11114-6:2022)
Bouteilles à gaz - Compatibilité des matériaux des bouteilles et des robinets avec les
contenus gazeux - Partie 6: Essai de compression adiabatique à l’oxygène (ISO 11114-
6:2022)
Ta slovenski standard je istoveten z: EN ISO 11114-6:2022
ICS:
23.020.35 Plinske jeklenke Gas cylinders
SIST EN ISO 11114-6:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 11114-6:2022
---------------------- Page: 2 ----------------------
SIST EN ISO 11114-6:2022
EN ISO 11114-6
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2022
EUROPÄISCHE NORM
ICS 23.020.35
English Version
Gas cylinders - Compatibility of cylinder and valve
materials with gas contents - Part 6: Oxygen pressure
surge testing (ISO 11114-6:2022)
Bouteilles à gaz - Compatibilité des matériaux des Gasflaschen - Verträglichkeit von Werkstoffen für
bouteilles et des robinets avec les contenus gazeux - Gasflaschen und Ventile mit den in Berührung
Partie 6: Essai de compression adiabatique à l'oxygène kommenden Gasen - Teil 6: Sauerstoff-
(ISO 11114-6:2022) Druckstoßprüfung (ISO 11114-6:2022)
This European Standard was approved by CEN on 20 August 2022.
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, Türkiye 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11114-6:2022 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 11114-6:2022
EN ISO 11114-6:2022 (E)
Contents Page
European foreword . 3
2
---------------------- Page: 4 ----------------------
SIST EN ISO 11114-6:2022
EN ISO 11114-6:2022 (E)
European foreword
This document (EN ISO 11114-6:2022) 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 March 2023, and conflicting national standards shall
be withdrawn at the latest by March 2023.
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.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 11114-6:2022 has been approved by CEN as EN ISO 11114-6:2022 without any
modification.
3
---------------------- Page: 5 ----------------------
SIST EN ISO 11114-6:2022
---------------------- Page: 6 ----------------------
SIST EN ISO 11114-6:2022
INTERNATIONAL ISO
STANDARD 11114-6
First edition
2022-08
Gas cylinders — Compatibility of
cylinder and valve materials with gas
contents —
Part 6:
Oxygen pressure surge testing
Bouteilles à gaz — Compatibilité des matériaux des bouteilles et des
robinets avec les contenus gazeux —
Partie 6: Essai de compression adiabatique à l’oxygène
Reference number
ISO 11114-6:2022(E)
© ISO 2022
---------------------- Page: 7 ----------------------
SIST EN ISO 11114-6:2022
ISO 11114-6:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
© ISO 2022 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 11114-6:2022
ISO 11114-6:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test installation . 2
4.1 Test gas . 2
4.1.1 Test gas specification . 2
4.1.2 Temperature of test gas . 2
4.2 Condition of test sample . 2
4.3 Surge tube (cannon) . 2
5 Design of the test facility .3
5.1 General . 3
5.2 Intermediate connector on the test sample side . 5
5.3 Pressure measurement devices . 5
5.4 Temperature gauge . 5
5.5 Pressure rise time verification . 5
6 Test procedure .6
6.1 Samples . 6
6.2 Pressure . 6
6.3 Temperature(s) . 7
6.4 Visual examination . 7
7 Validity of the test .7
8 Pass/fail criteria for the test sample .7
9 Test report . 7
Annex A (informative) Oxygen pressure surge testing of accessories . 9
Bibliography .10
iii
© ISO 2022 – All rights reserved
---------------------- Page: 9 ----------------------
SIST EN ISO 11114-6:2022
ISO 11114-6:2022(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, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 23, Transportable gas
cylinders, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
A list of all parts in the ISO 11114 series can be found on the ISO website.
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 www.iso.org/members.html.
iv
© ISO 2022 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 11114-6:2022
ISO 11114-6:2022(E)
Introduction
Oxygen pressure surge testing has been required by a number of different product standards covering:
— valves used for gas cylinders, tubes, pressure drums and cylinder bundles;
— residual pressure valves (RPVs);
— self-closing valves;
— industrial and medical valves with integrated pressure regulators (VIPRs);
— industrial and medical pressure regulators;
— hoses.
Oxygen pressure surge testing is also described in other testing standards such as ISO 21010,
ASTM G175 and ASTM G74.
NOTE A list of standards is given in the Bibliography.
Requirements for the test facility and test procedures differ from standard to standard due to
modifications introduced over the years and lack of coordination. This can result in a need to modify the
testing procedures and equipment depending on the product (e.g. valves, hoses, pressure regulators)
knowing that the aim of the test remains the same.
This document aims to standardize the test equipment and the test procedure so that, in future, product
standards can refer to this document and only give additional requirements, e.g. test pressure, number
of test samples needed to be submitted for the test.
v
© ISO 2022 – All rights reserved
---------------------- Page: 11 ----------------------
SIST EN ISO 11114-6:2022
---------------------- Page: 12 ----------------------
SIST EN ISO 11114-6:2022
INTERNATIONAL STANDARD ISO 11114-6:2022(E)
Gas cylinders — Compatibility of cylinder and valve
materials with gas contents —
Part 6:
Oxygen pressure surge testing
1 Scope
This document specifies requirements for the test apparatus and test procedure in order to apply
oxygen pressure surges consistently to devices being tested for resistance to ignition by adiabatic
compression and to materials for oxygen compatibility.
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 10286, Gas cylinders — Vocabulary
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 terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
surge tube
metallic tube of defined internal diameter and length installed between the outlet plane of
the quick-opening valve (QOV) or the calibrated orifice (if applicable) and the intermediate connector
to ensure a reproducible severity of the test condition
Note 1 to entry: In some documents, the term “connecting tube”
...
SLOVENSKI STANDARD
oSIST prEN ISO 11114-6:2021
01-junij-2021
Plinske jeklenke - Združljivost materialov za ventil in jeklenko s plinom - 6. del:
Preskus prenapetosti tlaka kisika (ISO/DIS 11114-6:2021)
Gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 6:
Oxygen pressure surge testing (ISO/DIS 11114-6:2021)
Gasflaschen - Verträglichkeit von Flaschen- und Ventilwerkstoffen mit den in Berührung
kommenden Gasen - Teil 6: Sauerstoff-Druckstossprüfung (ISO/DIS 11114-6:2021)
Bouteilles à gaz - Compatibilité des matériaux des bouteilles et des robinets avec les
contenus gazeux - Partie 6: Essai de compression adiabatique à l’oxygène (ISO/DIS
11114-6:2021)
Ta slovenski standard je istoveten z: prEN ISO 11114-6
ICS:
23.020.35 Plinske jeklenke Gas cylinders
oSIST prEN ISO 11114-6:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 11114-6:2021
---------------------- Page: 2 ----------------------
oSIST prEN ISO 11114-6:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11114-6
ISO/TC 58 Secretariat: BSI
Voting begins on: Voting terminates on:
2021-05-11 2021-08-03
Gas cylinders — Compatibility of cylinder and valve
materials with gas contents —
Part 6:
Oxygen pressure surge testing
ICS: 23.020.35
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
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 11114-6:2021(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 2021
---------------------- Page: 3 ----------------------
oSIST prEN ISO 11114-6:2021
ISO/DIS 11114-6:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 11114-6:2021
ISO/DIS 11114-6:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test installation . 2
4.1 Test gas . 2
4.1.1 Test gas specification . 2
4.1.2 Temperature of test gas . 2
4.2 Condition of test sample . 2
4.3 Surge tube . 2
5 Design of the test facility . 3
5.1 General . 3
5.2 Intermediate connector on the test sample side . 6
5.3 Pressure gauges. 6
5.4 Temperature gauge . 6
5.5 Pressure rise time verification . 6
6 Test procedure . 7
6.1 Samples . 7
6.2 Pressure . 7
6.3 Temperature(s) . 8
6.4 Visual examination . 8
7 Validity of the test . 8
8 Pass/fail criteria for the test sample . 8
9 Test report . 8
Annex A (informative) Oxygen pressure surge testing of accessories .10
Bibliography .11
© ISO 2021 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 11114-6:2021
ISO/DIS 11114-6:2021(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, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 23, Transportable gas
cylinders, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
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 www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 11114-6:2021
ISO/DIS 11114-6:2021(E)
Introduction
Oxygen pressure surge testing has been required by a number of different product standards covering:
— valves used for gas cylinders, tubes, pressure drums and cylinder bundles,
— Residual Pressure Valves (RPVs),
— self-closing valves,
— industrial and medical Valves with Integrated Pressure Regulators (VIPRs),
— pressure regulators,
— hoses.
Oxygen pressure surge testing is also described in other testing standards such as ISO 21010,
ASTM G175 and ASTM G74.
Note A list of standards is in the bibliography.
Requirements for the test facility and test procedures differ from standard to standard due to
modifications introduced over the years and lack of coordination. This may result in a need to modify
the testing procedures and equipment depending on the product (e.g. valves, hoses, pressure regulators)
knowing that the aim of the test remains the same.
This document aims to standardize the test equipment and the test procedure so that in future, product
standards can refer to this document and only give additional requirements e.g. test pressure, number
of test samples needed to be submitted for the test.
© ISO 2021 – All rights reserved v
---------------------- Page: 7 ----------------------
oSIST prEN ISO 11114-6:2021
---------------------- Page: 8 ----------------------
oSIST prEN ISO 11114-6:2021
DRAFT INTERNATIONAL STANDARD ISO/DIS 11114-6:2021(E)
Gas cylinders — Compatibility of cylinder and valve
materials with gas contents —
Part 6:
Oxygen pressure surge testing
1 Scope
This document specifies requirements for the test apparatus and test procedure in order to apply
oxygen pressure surges consistently to devices being tested for resistance to adiabatic compression
and to materials for oxygen compatibility.
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 10286, Gas cylinders — Terminology
3 Terms and definitions
For the purposes of this document, the definitions given in ISO 10286 and the following terms and
definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
surge tube
metallic tube of defined internal diameter and length installed between the outlet plane of the quick-
opening valve or the calibrated orifice (if applicable) and the intermediate connector to ensure a
reproducible severity of the test condition
Note 1 to entry: In some documents, the term connecting tube is used for this purpose.
3.2
test pressure
static pressure upstream the quick-opening valve in closed conditions
Note 1 to entry: The test pressure is expressed in bar.
Note 2 to entry: The test pressure is given in the product standard (see Bibliography).
3.3
pressure rise time
time required for the pressure to rise as calculated in 5.5
© ISO 2021 – All rights reserved 1
---------------------- Page: 9 ----------------------
oSIST prEN ISO 11114-6:2021
ISO/DIS 11114-6:2021(E)
3.4
product standard
standard that specifies requirements to be fulfilled by materials and/or accessories to establish their
fitness for purpose
[SOURCE: ISO/IEC Guide 2:2004, definition 5.4, modified]
Note 1 to entry: See examples of product standards in Bibliography.
4 Test installation
4.1 Test gas
4.1.1 Test gas specification
The oxygen pressure surge test shall be carried out with oxygen.
Gas specification shall correspond to Table 1.
Table 1 — Gas specification
Parameter Requirement
Minimum purity ≥ 99,5 % by volume
Hydrocarbon content ≤ 0,01 % by volume
Maximum particle size See 5.1
NOTE Most industrial oxygen grades meet the above specifications
4.1.2 Temperature of test gas
The oxygen used for calibration and testing shall be at a temperature of 60 °C (±3 °C) unless otherwise
specified by the appropriate product standard.
4.2 Condition of test sample
1)
In general, for accessories, test samples are initially (before test) at room temperature .
Some standards require the test sample to be heated (e.g. (60 ± 3) °C).
4.3 Surge tube
The surge tube shall be suitable for oxygen (see note below) and rated for the maximum pressure and
temperature which the material of the surge tube reaches during the test.
NOTE Surge
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.