ANNEX V

Regulation (EC) No 79/2009 of the European Parliament and of the Council of 14 January 2009 on type-approval of hydrogen-powered motor vehicles, and amending Directive 2007/46/EC (Text with EEA relevance) · European Union

| TYPE OF TEST HYDROGEN COMPONENT | Material tests | Corrosion resistance test | Endurance test | Pressure cycle test | Internal leakage test | External leakage test Pressure relief devices | | | | | | Automatic valves | | | | | | Manual valves | | | | | | Non-return valves | | | | | | Pressure relief valves | | | | | | Heat exchangers | | | | | | Refuelling connections or receptacles | | | | | | Pressure regulators | | | | | | Sensors for hydrogen systems | | | | | | Flexible fuel lines | | | | | | Fittings | | | | | | Hydrogen filters | | | | | | Removable storage system connectors | | | | | | Subject to specific requirements for any of the hydrogen components, the test procedures to be applied for the type-approval of hydrogen components, other than containers, designed to use compressed (gaseous) hydrogen must include: 1. Material tests: 1.1. | Hydrogen compatibility test set out in point (j) of Annex III. 1.2. | Ageing test: the purpose of the test is to check whether the non-metallic material used in a hydrogen component can withstand ageing. No visible cracking of the test samples is allowed. 1.3. | Ozone compatibility test: the purpose of the test is to check whether the elastomer material of a hydrogen component is compatible with ozone exposure. No visible cracking of the test samples is allowed. 2. Corrosion resistance test set out in point (e) of Annex III. 3. Endurance test set out in point (c) of Annex III. 4. Pressure cycle test set out in point (i) of Annex III. The hydrogen components must not show visible signs of deformation or extrusion and must fulfil the requirements of the internal and external leakage tests. 5. Internal leakage test: the purpose of the test is to provide evidence that the specified hydrogen components are free from internal leakage. In order to prove this, the hydrogen components are pressurised under different temperature conditions and observed for leakage. The hydrogen components must stay bubble free and must not leak internally at a higher rate than a specified number. 6. External leakage test set out in point (b) of Annex III.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-31 · Text as adopted (Official Journal); later amendments are not incorporated in this text.