2011 Manufacture of industrial gases

[0]

Includes

- manufacture of liquefied or compressed inorganic industrial or medical gases:
-- elemental gases
-- liquid or compressed air
-- refrigerant gases
-- mixed industrial gases
-- inert gases such as carbon dioxide
-- isolating gases [0]

Also includes

[0]

Does not include

- extraction of methane, ethane, butane or propane, see 0620
- manufacture of fuel gases such as ethane, butane or propane in a petroleum refinery, see 1920
- manufacture of gaseous fuels from coal, waste etc., see 3521 [0]

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