ISO 19881:2018

INTERNATIONAL ISO
STANDARD 19881
First edition
2018-10
Gaseous hydrogen — Land vehicle fuel
containers
Hydrogène gazeux — Réservoirs de carburant pour véhicules
terrestres
Reference number
©
ISO 2018
© ISO 2018
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Published in Switzerland
ii © ISO 2018 – All rights reserved

Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Service conditions . 5
4.1 General . 5
4.1.1 Standard service conditions. 5
4.1.2 Category . 6
4.1.3 Service life . 6
4.1.4 Periodic in-service inspections . 6
4.2 Pressures . 6
4.2.1 Nominal working pressures . 6
4.2.2 Maximum pressures. 6
4.3 Maximum number of filling cycles . 6
4.4 Temperature range . 7
4.4.1 Settled gas temperatures . 7
4.4.2 Container temperatures . 7
4.4.3 Transient gas temperatures . 7
4.4.4 Test temperatures . 7
4.5 Gas composition . 7
4.6 External surfaces . 7
4.7 Installation requirements . 7
5 Compliance . 8
6 Material qualification tests and requirements . 8
6.1 General . 8
6.2 Material requirements. 8
6.3 Metal containers and metal liners . 9
6.3.1 Material properties . 9
6.3.2 Impact test for steel . 9
6.3.3 Tensile tests for metals . 9
6.3.4 Sustained load cracking (SLC) test for aluminum alloys . 9
6.3.5 Corrosion tests for aluminum alloys .10
6.4 Ultraviolet resistance of external coatings .10
6.5 Fibers .10
6.6 Resins .10
6.7 Nonmetallic liners (Type 4) .10
6.8 Bosses for Type 4 containers .10
7 Wall thickness .11
7.1 Type 1 containers .11
7.2 Liners for Type 2, Type 3, and Type 4 containers .11
7.3 Composite reinforcement for Type 2, Type 3, and Type 4 containers .11
7.3.1 Stress analysis .11
7.3.2 Stress ratios .12
7.3.3 Modified stress ratio test .12
7.3.4 Hybrid designs .12
7.4 External loads on containers .12
8 Threaded openings .12
9 Manufacture .13
9.1 General .13
9.2 Metal containers and metal liners .13
9.3 Nonmetallic liners .13
9.4 Composite containers with metallic liners .13
9.5 Composite containers with nonmetallic liners .13
9.6 Brazing .14
9.7 Welding .14
9.8 End closing by forming .14
9.9 Mounting and protection .14
9.10 Batch definitions .14
9.11 Design qualification tests .14
10 Production tests and examinations .15
10.1 General .15
10.2 Hydrostatic test .15
10.3 Leak test .16
11 Batch tests .16
11.1 General .16
11.2 Batch material tests .16
11.3 Coated containers .16
11.4 Burst test .17
11.4.1 Batch burst test .17
11.4.2 Periodic burst test .17
11.5 Cycle test .
...