scope:

These rules apply to materials used for all kind of UWT systems.

Application

The requirements in this chapter apply to steel materials for pressure hulls and pressure vessels for human occupancy, steel materials and non-iron materials for structures, and appropriate means of corrosion protection, as well as to fibre reinforced plastics (FRP), acrylic materials and syntactic foams.

Materials other than those mentioned in this chapter may be used provided they have been proven to be suitable for the intended application. If no recognized standards are available, the relevant specifications shall be submitted to the Society for assessment and approval.