NEN-EN-ISO 11623:2012 Ontw. en

This International Standard specifies the requirements for periodic inspection and testing of hoop wrapped and fully wrapped composite transportable gas cylinders, with aluminium alloy, steel or non-metallic liners or of linerless construction, intended for compressed, liquefied or dissolved gases under pressure, of water capacity from 0,5 l up to 450 l. This standard is written to address the periodic inspection and testing of composite cylinders constructed to ISO 11119-1, 11119-2 and 11119-3 standards and may be applied to other composite cylinders designed to comparable standards when authorized by the competent authority. As far as practicable, this International Standard also may be applied to cylinders of less than 0,5 l water capacity. This International Standard specifies the requirements for periodic inspection and testing to verify the integrity of such gas cylinders for further service.