ČSN EN 17339

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 x 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.