Article 5 U.K. General requirements for hydrogen components and systems

Manufacturers shall ensure that:

(a)

hydrogen components and systems function in a correct and safe way and reliably withstand electrical, mechanical, thermal and chemical operating conditions without leaking or visibly deforming;

(b)

hydrogen systems are protected against over-pressurisation;

(c)

the materials used for those parts of the hydrogen components and systems which are to be in direct contact with hydrogen are compatible with hydrogen;

(d)

hydrogen components and systems reliably withstand expected temperatures and pressures during their expected lifetime;

(e)

hydrogen components and systems reliably withstand the range of operating temperatures laid down in the implementing measures;

(f)

hydrogen components are marked in accordance with the implementing measures;

(g)

hydrogen components with directional flow have the flow direction clearly indicated;

(h)

hydrogen components and systems are designed in such a way that they can be installed in accordance with the requirements of Annex VI.