This class includes: - manufacture of liquefied or compressed selected inorganic industrial or medical gases: • elemental gases • liquid or compressed air • mixed industrial gases • inert gases (e.g. carbon dioxide) • isolating gases
This class also includes: - production of hydrogen, not for energy supply through a network
This class excludes: - extraction of methane, ethane, butane or propane, see 06.20 - liquefaction and regasification of natural gas for the purpose of transport, done at the mine site, see 09.10 - manufacture of fuel gases (e.g. ethane, butane or propane in a petroleum refinery), see 19.20 - manufacture of refrigerant gases of halogenated hydrocarbons, see 20.14 - manufacture of gaseous fuels from coal, waste, etc., see 35.21 - manufacture of hydrogen for the provision as a gaseous fuel through a permanent supply network, see 35.21