SIST EN ISO 11439:2013/A1:2022

SLOVENSKI STANDARD
SIST EN ISO 11439:2013/oprA1:2020
01-november-2020
Plinske jeklenke - Visokotlačne jeklenke za zemeljski plin za pogon motornih vozil,
vgrajene na vozilo - Dopolnilo A1 (ISO 11439:2013/DAM 1:2020)
Gas cylinders - High pressure cylinders for the on-board storage of natural gas as a fuel
for automotive vehicles - Amendment 1 (ISO 11439:2013/DAM 1:2020)
Gasflaschen - Hochdruck-Flaschen für die fahrzeuginterne Speicherung von Erdgas als
Treibstoff für Kraftfahrzeuge - Änderung 1 (ISO 11439:2013/DAM 1:2020)
Bouteilles à gaz - Bouteilles haute pression pour le stockage de gaz naturel utilisé
comme carburant à bord des véhicules automobiles - Amendement 1 (ISO
11439:2013/DAM 1:2020)
Ta slovenski standard je istoveten z: EN ISO 11439:2013/prA1
ICS:
23.020.35 Plinske jeklenke Gas cylinders
43.060.40 Sistemi za gorivo Fuel systems
SIST EN ISO 11439:2013/oprA1:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11439:2013/oprA1:2020

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SIST EN ISO 11439:2013/oprA1:2020
DRAFT AMENDMENT
ISO 11439:2013/DAM 1
ISO/TC 58/SC 3 Secretariat: BSI
Voting begins on: Voting terminates on:
2020-10-01 2020-12-24
Gas cylinders — High pressure cylinders for the on-board
storage of natural gas as a fuel for automotive vehicles
AMENDMENT 1
Bouteilles à gaz — Bouteilles haute pression pour le stockage de gaz naturel utilisé comme carburant à
bord des véhicules automobiles
AMENDEMENT 1
ICS: 43.060.40; 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 11439:2013/DAM 1:2020(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 2020

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SIST EN ISO 11439:2013/oprA1:2020
ISO 11439:2013/DAM 1:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO 2020 – All rights reserved

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SIST EN ISO 11439:2013/oprA1:2020
ISO 11439:2013/DAM 1:2020(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
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on the ISO list of patent declarations received (see www .iso .org/ patents).
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For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
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URL: www .iso .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 3,
Cylinder design.
© ISO 2020 – All rights reserved iii

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SIST EN ISO 11439:2013/oprA1:2020

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SIST EN ISO 11439:2013/oprA1:2020
ISO 11439:2013/DAM 1:2020(E)
Gas cylinders — High pressure cylinders for the on-board
storage of natural gas as a fuel for automotive vehicles
AMENDMENT 1

2 Normative references
Eliminating dates on standards so that latest versions are required:
ASTM D522, Standard Test Methods for Mandrel Bend Test of Attached Organic Coatings
ASTM D1308, Standard Test Method for Effect of Household Chemicals on Clear and Pigmented Organic
Finishes
ASTM D2794, Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation
(Impact)
ASTM D3170, Standard Test Method for Chipping Resistance of Coatings
ASTM G154, Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic
Materials
NACE/TM 0177, Laboratory Testing of Metals for Resistance to Sulfide Stress Cracking and Stress Corrosion
Cracking in H2S Environments

7.5.2.2  Material tests for steel cylinders
a) Tensile test
Steel from a finished cylinder shall meet the requirements of the tensile test in A.1.
b) Impact test
Steel from a finished cylinder shall meet the requirements of the impact test in A.2.
c) Sulfide stress cracking resistance test
If the upper limit of the specified tensile strength for the steel exceeds 950 MPa, the steel from a finished
cylinder shall meet the requirements of the sulfide stress cracking resistance test in A.3.  The actual tensile
strength of the steel according to A.1, shall not exceed the value obtained by more than 5%, on the samples
tested for SSC resistance.

7.6.2.1  Batch tests
Tests shall be carried out on each batch of cylinders:
a) on one cylinder, one hydrostatic pressure burst test in accordance with A.12.
b) on a further cylinder, or a heat treated witness sample representative of a finished cylinder:
1) a check of the critical dimensions against the design (see 6.4.1);
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SIST EN ISO 11439:2013/oprA1:2020
ISO 11439:2013/DAM 1:2020(E)

2) one tensile test in accordance with A.1; the test results shall satisfy the requirements of the design
(see 6.4.1);
3) for steel cylinders, three impact tests in accordance with A.2; the test results shall satisfy the
requirements specified in A.2;
4) when a protective coating is a part of the design, a coating batch test in accordance with A.24.
Where the coating fails to meet the requirements of A.24, the batch shall be 100 % inspected to
remove cylinders with similar defective coatings. The coating on all defectively coated cylinders
may be stripped and recoated. The coating batch test shall then be repeated.

8.2.3.1  Resins
The material for impregnation may be thermosetting or thermoplastic resins. Examples of suitable matrix
materials are epoxy, modified epoxy, polyester and vinyl ester thermosetting plastics, and polyethylene and
polyamide thermoplastic material.
The glass transition temperature of the resin material shall be determined in accordance with ASTM D3418,
and shall not be less than 102 °C.

8.5.2.2  Material tests for steel liners
a) Tensile test
Steel from a finished liner shall meet the requirements of the tensile test in A.1.
b) Impact test
Steel from a finished liner shall meet the requirements of the impact test in A.2.
c) Sulfide stress cracking resistance test
If the upper limit of the specified tensile strength for the steel exceeds 950 MPa, the steel from a finished
liner shall meet the requirements of the sulfide stress cracking resistance test in A.3. The actual tensile
strength of the steel according to A.1, shall not exceed the value obtained by more than 5%, on the samples
tested for SSC resistance.

8.5.2.11  High temperature creep test
In designs where glass or aramid fibre has a load sharing application, one cylinder shall be tested in
accordance with A.18.

8.6.3.1  Liner tests
d) on one liner, one hydrostatic pressure burst test in accordance with A.12.
e) on a further liner, or heat treated sample representative of a liner:
1) a check of the critical dimensions against the design (see 6.1.3.1);
2) one tensile test in accordance with A.1; the test results shall satisfy the requirements of the design
(see 6.1.3.1);
3) three impact tests in accordance with A.2; the test results shall satisfy the requirements
specified in A.2;
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SIST EN ISO 11439:2013/oprA1:2020
ISO 11439:2013/DAM 1:2020(E)

All liners represented by a batch test that fails to meet the specified requirements shall follow the procedures
specified in 8.9.

9.2.3.1  Resins
The material for impregnation may be thermosetting or thermoplastic resins. Examples of suitable matrix
materials are epoxy, modified epoxy, polyester and vinyl ester thermosetting plastics, and polyethylene
and polyamide thermoplastic material. The glass transition temperature of the resin material shall be
determined in accordance with ASTM D3418, and shall not be less than 102 °C.

9.5.2.2  Material tests for steel liners
a) Tensile test
Steel from a finished cylinder or liner shall meet the requirements of the tensile test in A.1.
b) Impact test
Steel from a finished liner shall meet the requirements of the impact test in A.2.
c) Sulfide stress cracking resistance test
If the upper limit of the specified tensile strength for the steel exceeds 950 MPa, the steel from a finished
liner shall meet the requirements in A.3. The actual tensile strength of the steel according to A.1, shall not
exceed the value obtained by more than 5 %, on the samples tested for SSC resistance.

9.5.2.11  High temperature creep test
In designs where glass or aramid fibre has a load sharing application, one cylinder shall be tested in
accordance with A.18.

9.6.2  Liner tests
On a liner, or heat treated sample representative of a finished liner:
a) a check of the critical dimensions against the design (see 6.1.3.1);
b) one tensile test in accordance with A.1; the test results shall satisfy the requirements of the design (see
6.1.3.1);
c) for steel liners, three impact tests in accordance with A.2; the test results shall satisfy the requirements
specified in A.2;
All liners represented by a batch test that fails to meet the requirements specified shall follow the procedures
specified in 9.9.

10.2.2  Resins
The material for impregnation may be thermosetting or thermoplastic resins. Examples of suitable matrix
materials are epoxy, modified epoxy, polyester and vinyl ester thermosetting plastics, and polyethylene and
polyamide thermoplastic material.
The glass transition temperature of the resin material shall be determined in accordance with ASTM D
3418, and shall not be less than 102 °C.
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SIST EN ISO 11439:2013/oprA1:2020
ISO 11439:2013/DAM 1:2020(E)


10.5.2.10  High temperature creep test
In designs where glass or aramid fibre has a load sharing application, one cylinder shall be tested in
accordance with A.18.

A.6  Leak-before-break (LBB) test
Three finished cylinders shall be pressure cycled between less than or equal to 20 bar and greater than or
equal to 1.5 × working pressure, at a rate not exceeding 10 cycles per minute in accordance with A.13.
All cylinders shall either fail by leakage or exceed 45 000 pressure cycles.

A.7  Extreme temperature pressure cycling
Finished cylinders, with the composite wrapping free of any protective coating, shall be cycle tested:
a) condition for more than 48 h at zero pressure, 65 °C or higher, and 95 % or greater relative humidity.
The intent of this relative humidity requirement shall be deemed met by spraying with a fine spray or
mist of water in a chamber held at a minimum 65 °C;
b) hydrostatically pressurize for 500 cycles multiplied by the specified service life in years between less
than or equal to 20 bar and greater than or equal to 260 bar at 65 °C or higher, and 95 % or greater
relative humidity;
c) condition the cylinder and fluid at – 40 °C or lower as measured in the fluid and on the cylinder surface;
d) pressurize from less than or equal to 20 bar to greater than or equal to 200 bar for 500 cycles multiplied
by the specified service life in years at – 40 °C or lower. Adequate recording instrumentation shall be
provided to ensure the minimum temperature of the fluid is maintained during the low temperature
cycling. At no time during the pressure cycling shall the fluid be warmer than – 40 °C.
The pressure cycling rate of b) shall not exceed 10 cycles per minute. The pressure cycling rate of d) shall
not exceed 3 cycles per minute unless a pressure transducer is installed directly within the cylinder. All
temperature, pressure, and relative humidity values shall be recorded at least every 6 seconds. Cycles that
fall outside the limits of the pressure, humidity and temperature values, shall be discounted from the total
requirement.
During this pressure cycling, the cylinder shall show no evidence of rupture, leakage or fibre unravelling.
Following pressure cycling at extreme temperatures, cylinders shall be hydrostatically pressured to
failure in accordance with A.12, and achieve a minimum burst pressure of 85 % of the minimum design
burst pressure. For type 4 designs, prior to the hydrostatic burst test the cylinder shall be leak tested in
accordance with A.10.

A.9  Coating tests
These tests are intended to validate a coating system that can be used for the same coating on other designs.
An alternative corrosion test for severe exposure conditions is provided in Annex H.
Coatings shall be evaluated using:
f) Adhesion testing, in accordance with ASTM D3359, using method A or B, as appropriate. The coating
shall exhibit an adhesion rating of either 4A or 4B, as appropriate.
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SIST EN ISO 11439:2013/oprA1:2020
ISO 11439:2013/DAM 1:2020(E)

g) Flexibility, in accordance with ASTM D522-93, using test method B with a 12,7 mm (0,5 in) mandrel at
the specified thickness at - 20 °C. Samples f
...