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BS ISO 11119-3:2020:2021 Edition

$198.66

Gas cylinders. Design, construction and testing of refillable composite gas cylinders and tubes – Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with non-load-sharing metallic or non-metallic liners or without liners

Published By Publication Date Number of Pages
BSI 2021 58
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This document specifies minimum requirements for the material, design, construction and workmanship, manufacturing processes, examination and testing at time of manufacture for:

  • type 4 composite fully wrapped cylinders or tubes with a non-load sharing liner and composite reinforcement on both the cylindrical portion and the dome ends;

  • type 5 fully wrapped cylinders or tubes without liners and with a test pressure of less than 60 bar and composite reinforcement on both the cylindrical portion and the dome ends;

  • water capacities up to 450 l;

  • for the storage and conveyance of compressed or liquefied gases;

  • cylinders and tubes with composite reinforcement of carbon fibre, aramid fibre or glass fibre (or a mixture thereof) within a matrix;

  • a minimum design life of 15 years.

Cylinders and tubes manufactured and tested according to this document are not intended to contain toxic, oxidizing or corrosive gases.

This document does not address the design, fitting and performance of removable protective sleeves.

NOTE 1

References to cylinders in this document include composite tubes if appropriate.

NOTE 2

ISO 11439 applies to cylinders intended for use as fuel containers on natural gas vehicles and ISO 11623 covers periodic inspection and re-testing of composite cylinders.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
12 4 Symbols
5 Inspection and testing
6 Materials
6.1 Liner materials
13 6.2 Composite materials
7 Design and manufacture
7.1 General
14 7.2 Design submission
16 7.3 Manufacturing
8 Type approval procedure
8.1 General requirements
8.2 Prototype tests
17 8.3 New design
18 8.4 Design variants
21 8.5 Type approval test procedures and criteria
8.5.1 Proof pressure test
8.5.2 Hydraulic elastic expansion test
22 8.5.3 Cylinder burst test
8.5.4 Ambient cycle test
24 8.5.5 Vacuum test
25 8.5.6 Environmental cycle test
26 8.5.7 Environmentally assisted stress rupture test
8.5.8 Flaw test
28 8.5.9 Drop/impact test
31 8.5.10 High velocity impact (gunfire) test
32 8.5.11 Fire resistance test
34 8.5.12 Permeability test
35 8.5.13 Torque test on cylinder neck boss
8.5.14 Salt water immersion test
36 8.5.15 Leak test
8.5.16 Pneumatic cycle test
37 8.5.17 Liner burst test
38 8.5.18 Resin shear strength
8.5.19 Glass transition temperature
8.6 Failure of type approval tests
9 Batch inspection and testing
9.1 Liner
39 9.2 Failure of liner batch tests
9.3 Overwrap materials
9.4 Composite cylinder
41 9.5 Cylinder failure during type approval or batch testing
10 Cylinder marking
10.1 General
42 10.2 Additional marking
43 Annex A (informative) Examples of design approval certificate
44 Annex B (informative) Specimen test reports
48 Annex C (informative) Test report for equivalency
50 Annex D (informative) Standardized test requirements for thermally activated pressure relief devices
55 Bibliography
BS ISO 11119-3:2020
$198.66