The UK participation in its preparation was entrusted to Technical Committee PVE/3/3, Transportable Gas ContainersCylinder Design, Construction and Testing at the Time of Manufacture NEN-EN specifies minimum requirements for the materials, design, construction, prototype testing and routine manufacturing inspections of fully wrapped composite gas cylinders for compressed, liquefied and dissolved gases. TestTorque test (for taper threads only)Test– Neck strength ILNAS-EN Every interested party, w