UNI EN 14427:2022

This document: — specifies minimum requirements for materials, design, construction, prototype testing and routine manufacturing inspections of fully wrapped composite cylinders with a water capacity from 0,5 litre up to and including 150 litres for liquefied petroleum gases (LPG) exposed to ambient temperatures, with a test pressure of at least 30 bar; — is only applicable to cylinders which are fitted with a pressure relief valve (see 4.1.3); — is applicable to cylinders with a liner of metallic material (welded or seamless) or non-metallic material (or a mixture thereof), reinforced by fibres of glass, carbon or aramid (or a mixture thereof); — is also applicable to composite cylinders without liners. Cylinders manufactured to this document are suitable for temperatures down to −40 °C.