1 Scope
This document specifies minimum requirements for the materials, design, construction,
type testing and routine manufacturing inspections of composite gas cylinders and
tubes for compressed hydrogen.
NOTE 1 Unless specified in the text, for the purposes of this document, the word “cylinder” includes tubes.
This document applies to:
-
— fully wrapped composite cylinders (Type 3 and Type 4);
-
— hoop wrapped cylinders (Type 2);
with carbon fibres, intended to be permanently mounted in a frame (e.g. bundle or
trailer) with a test pressure of not less than 300 bar, with:
-
— non-metallic liners (Type 4) or seamless metallic liners (for Type 2 and Type 3);
-
— a maximum water capacity of 3 000 l;
-
— a maximum working pressure of 1 000 bar;
-
— the product of working pressure times water capacity (p × V) not exceeding 1 000 000 bar.l.
NOTE 2 A glass fibre protective layer is sometimes applied to the external surface of the cylinder.