I.S. EN ISO 11439:2013&A1:2021
Current
The latest, up-to-date edition.
Gas cylinders - High pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehicles - Amendment 1 (ISO 11439:2013/Amd 1:2021)
Hardcopy , PDF
English
12-15-2021
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Service conditions
5 Inspection and testing
6 Type approval procedure.
7 Requirements for type 1 metal cylinders
8 Requirements for type 2 hoop-wrapped cylinders
9 Requirements for type 3 fully-wrapped cylinders
10 Requirements for type 4 fully-wrapped composite cylinders
11 Marking
12 Preparation for dispatch
Annex A (normative) Test methods and criteria
Annex B (normative) Ultrasonic examination
Annex C (informative) Non-destructive examination (NDE) defect size by flawed cylinder cycling
Annex D (informative) Report forms
Annex E (informative) Standard working pressures
Annex F (informative) Verification of stress ratios using strain gauges
Annex G (informative) Manufacturer’s instructions for handling, use and inspection of cylinders
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