ISO/FDIS 19887

Gaseous Hydrogen — Fuel system components for hydrogen fuelled vehicles

Hydrogène gazeux — Composants des systèmes d'alimentation des véhicules à hydrogène

General Information

• Status: Not Published
• ICS: 27.075 - Hydrogen technologies
• ICS: 43.060.40 - Fuel systems
• Technical Committee: ISO/TC 197 - Hydrogen technologies
• Drafting Committee: ISO/TC 197 - Hydrogen technologies
• Current Stage: 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
• Start Date: 10-Jul-2024
• Completion Date: 10-Jul-2024

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/TC 197
Gaseous Hydrogen — Fuel system
Secretariat: SCC
components for hydrogen fuelled
Voting begins on:
vehicles
2024-07-10
Voting terminates on:
2024-09-04
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
FINAL DRAFT
International
Standard
ISO/TC 197
Gaseous Hydrogen — Fuel system
Secretariat: SCC
components for hydrogen fuelled
Voting begins on:
vehicles
Voting terminates on:
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 SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ii
Contents Page
Foreword .viii
Introduction .ix
1 Scope . 1
1.1 Inclusions.1
1.2 Applicability .1
1.3 Exclusions .2
2 Normative references . 2
3 Terms and definitions . 3
4 General requirements . 7
4.1 General construction and assembly .7
4.1.1 Intended use .7
4.1.2 Material requirements .8
4.1.3 Threaded openings.9
4.1.4 Service temperatures .10
4.1.5 Design service life .10
4.2 Failure modes and effects analysis (FMEA) .10
4.3 Electrical equipment and wiring .10
4.3.1 Openings .10
4.3.2 Equipment .10
4.3.3 Materials .10
4.3.4 Connectors .10
4.4 Component literature .11
4.4.1 General .11
4.4.2 Instructions – General .11
4.4.3 Instructions – Additional considerations .11
4.4.4 Installation instructions .11
4.5 Marking .11
4.5.1 General marking information .11
4.5.2 Marking methods . 12
4.5.3 Exclusion of markings. 12
5 General test methods .12
5.1 General test requirements . 12
5.1.1 Testing samples . 12
5.1.2 References to other standards . 12
5.1.3 Pressure and temperature requirements . 13
5.1.4 Test gases . 13
5.1.5 Material acceptance .14
5.1.6 Multi-functional components .14
5.1.7 Pre-cooling effects .14
5.1.8 Electrically operated components .14
5.2 Hydrostatic strength .14
5.2.1 General .14
5.2.2 Test method .14
5.3 Leakage . 15
5.3.1 General . 15
5.3.2 External leakage . 15
5.3.3 Internal leakage . 15
5.3.4 Test conditions . 15
5.4 Excess torque resistance .16
5.5 Bending moment .16
5.6 Continuous operation .17
5.6.1 General .17
5.6.2 Test method .17

iii
5.7 Corrosion resistance .18
5.7.1 General .18
5.7.2 Salt spray exposure .19
5.7.3 Accelerated cyclic corrosion .19
5.8 Ultraviolet resistance of external surfaces .21
5.8.1 General .21
5.8.2 Ultraviolet resistance test.21
5.8.3 Pass criteria . 22
5.9 Automotive fluid exposure . 22
5.9.1 General .
...

ISO/DIS FDIS 19887:2023(E)
ISO/TC 197
Secretariat: SCC/BNQ
ISO TC 197/ JWG 30
Date: 2023-11-13
Gaseous Hydrogen — Fuel system components for hydrogen fuelled
vehicles
FDIS stage
ISO/DIS FDIS 19887:2023(E2024(en)
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
EmailE-mail: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
ii
ISO/DIS FDIS 19887:2023(E2024(en)
Contents
Foreword . xv
Introduction . xvi
1 Scope . 1
1.1 Inclusions . 1
1.2 Applicability . 2
1.3 Exclusions . 2
2 Normative references . 2
3 Terms and definitions . 3
4 General requirements . 8
4.1 General construction and assembly . 8
4.1.1 Intended use . 8
4.1.2 Material requirements . 10
4.1.3 Threaded openings . 11
4.1.4 Service temperatures. 11
4.1.5 Design service life . 11
4.2 Failure modes and effects analysis (FMEA) . 12
4.3 Electrical equipment and wiring . 12
4.3.1 Openings . 12
4.3.2 Equipment . 12
4.3.3 Materials . 12
4.3.4 Connectors . 12
4.4 Component literature . 12
4.4.1 General . 12
4.4.2 Instructions – General . 12
4.4.3 Instructions – Additional considerations . 13
4.4.4 Installation instructions . 13
4.5 Marking . 13
4.5.1 General marking information . 13
4.5.2 Marking methods . 14
4.5.3 Exclusion of markings. 14
5 General test methods . 14
5.1 General test requirements . 14
5.1.1 Testing samples . 14
5.1.2 References to other standards . 14
5.1.3 Pressure and temperature requirements . 15
5.1.4 Test gases . 15
5.1.5 Material acceptance . 16
5.1.6 Multi-functional components . 16
5.1.7 Pre-cooling effects . 16
5.1.8 Electrically operated components . 16
5.2 Hydrostatic strength . 16
5.2.1 General . 16
5.2.2 Test method . 16
5.3 Leakage . 17
5.3.1 General . 17
5.3.2 External leakage . 17
iii
ISO/DIS FDIS 19887:2023(E2024(en)
5.3.3 Internal leakage . 17
5.3.4 Test conditions . 17
5.4 Excess torque resistance . 18
5.5 Bending moment . 18
5.6 Continuous operation . 20
5.6.1 General . 20
5.6.2 Test method . 20
5.7 Corrosion resistance . 21
5.7.1 General . 21
5.7.2 Salt spray exposure . 22
5.7.3 Accelerated cyclic corrosion . 22
5.8 Ultraviolet resistance of external surfaces . 26
5.8.1 General . 26
5.8.2 Ultraviolet resistance test . 26
5.8.3 Pass criteria . 26
5.9 Automotive fluid exposure . 27
5.9.1 General . 27
5.9.2 Test method . 27
5.9.3 Fluids . 27
5.9.4 Pass criteria . 27
5.10 Atmospheric exposure . 27
5.10.1 Oxygen aging . 27
5.10.2 Ozone . 28
5.11 Abnormal electrical voltages . 28
5.11.1 Overvoltage testing . 28
5.11.2 Minimum opening voltage . 29
5.12 Non-metallic material hydrogen compatibility . 29
5.12.1 General . 29
5.12.2 Hydrogen gas exposure . 30
5.12.3 Pass criteria . 30
5.13 Vibration resistance . 30
5.13.1 Test method . 30
5.13.2 Pass criteria . 31
5.14 Stress corrosion cracking resistance. 31
5.14.1 General . 31
5.14.2 Test method . 31
5.14.3 Pass criteria . 31
5.15 Insulation resistance. 31
5.16 Pre-cooled hydrogen exposure . 32
6 Quality assurance. 32
7 Production inspection and acceptance testing .
...