ISO 10239:2008 covers permanently installed liquefied petroleum gas (LPG) systems and LPG burning appliances on small craft of hull length up to 24 m, except for systems used on LPG-fuelled propulsion engines or LPG-driven generators. ISO 10239:2008 does not cover appliances with directly attached gas cylinders, such as portable self-contained camping stoves and portable gas lamps.