Title : Guidelines for Approval of Metallic Materials in Hydrogen Service

This is related to the “Procedure for Development of Classification Technical Rules (QP-08)" 6.2 and "Instruction for Control of Internal Survey Guidelines, Circular and Technical Information (QI-03)" 5.5.

The guidelines provide the requirements for approval of metallic materials to be used for Tanks, Pressure Vessels, Piping, Valves and Equipment which are in continuous contact with Hydrogen either in liquefied or gaseous form.

[Responsible Department: Hull Rule Development Team]