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Engineering ToolBox > Classification of Gases
Compressed gases can be classified as
Oxidizers are not flammable by them self, but will contribute to combustion as an oxidant. Fat or oil is not accepted in combination with oxidizers.
Some common oxidizers:
Inert gases do not take part in combustion processes, they do not react with other materials. An inert gas supplied to a room or limited space will reduce the amount of oxygen and limit a combustion process as a fire. Inert gases is used in extinguishing systems where it is important to avoid water damage - rooms with electronic devices etc.
Some inert gases:
Flammable gases together with air or oxygen in the right concentration will burn and/or explode if ignited.
If the mixture is to lean or to rich the mixture will not ignite.
Some flammable gases: