scope:

This International Standard specifies the requirements for lightweight refillable fuel tanks intended for the on-board storage of high-pressure compressed gaseous hydrogen or hydrogen blends on land vehicles¹.

This International Standard is not intended as a specification for fuel tanks used for solid, liquid hydrogen or hybrid cryogenic-high pressure hydrogen storage applications.

This International Standard is applicable for fuel tanks of steel, stainless steel, aluminium or non-metallic construction material, using any design or method of manufacture suitable for its specified service conditions.

This Standard applies to the following types of fuel tank designs:

- Type 1 - all - metal fuel tank;

- Type 2 - hoop wrapped fuel tank with a load sharing metal liner and composite reinforcement on the cylindrical part only;

- Type 3 - fully wrapped fuel tank with a load sharing metal liner and composite reinforcement on both the cylindrical part and dome ends;

- Type 4 - fully wrapped fuel tank with a non-load sharing liner and composite reinforcement in both the cylindrical part and dome ends.

¹ The first edition of this International Standard only covers gaseous hydrogen and hydrogen blends fuel tanks for use onboard light duty four-wheel passenger road vehicles and heavy-duty road vehicles. Fuel tanks for other applications are to be added in the next editions.