In Chemicals Industries for production of Nitric Acid, water gas and oxidation purpose.
Gas cylinders should be handled with carefully and don't slide/drop the cylinders.
Cylinder should not use to fill other gas other than one it now contains.
Use no oil and any flammable material should not be kept in the immediate vicinity of cylinder.
Gas filled cylinders should be kept in a cool dry and ventilated place.
Use never it in place of other gases.