DS/ISO 11119-3:2020/Amd 1:2023

Gas cylinders - Design, construction and testing of refillable composite gas cylinders and tubes - Part 3: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with non-load-sharing metallic or non-metallic liners or without liners - Amendment 1

This document specifies minimum requirements for the material, design, construction and workmanship, manufacturing processes, examination and testing at time of manufacture for:*– type 4 composite fully wrapped cylinders or tubes with a non-load sharing liner and composite reinforcement on both the cylindrical portion and the dome ends;*– type 5 fully wrapped cylinders or tubes without liners and with a test pressure of less than 60 bar and composite reinforcement on both the cylindrical portion and the dome ends;*– water capacities up to 450 l;*– for the storage and conveyance of compressed or liquefied gases;*– cylinders and tubes with composite reinforcement of carbon fibre, aramid fibre or glass fibre (or a mixture thereof) within a matrix;*– a minimum design life of 15 years.*Cylinders and tubes manufactured and tested according to this document are not intended to contain toxic, oxidizing or corrosive gases.*This document does not address the design, fitting and performance of removable protective sleeves.*NOTE 1 – References to cylinders in this document include composite tubes if appropriate.*NOTE 2 – ISO 11439 applies to cylinders intended for use as fuel containers on natural gas vehicles and ISO 11623 covers periodic inspection and re-testing of composite cylinders.