Manufacture of industrial gases

This class includes

This class 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

Excludes

This class excludes:

• extraction of methane, ethane, butane or propane, see 06.20
• manufacture of fuel gases such as ethane, butane or propane in a petroleum refinery, see 19.20
• manufacture of gaseous fuels from coal, waste etc., see 35.21