The mixture of gases which contains and moves the contaminant material. Components of the carrier gas are not considered to cause air pollution or react with the contaminant material.

a diluent that contains small amounts of the sample gas and is used to transport it into the plasma region

mobile phase in gas chromatography. Usually helium, hydrogen or nitrogen.

Carrier Gas: The gas used to carry powdered material from the powder feeder or hopper to the thermal spray gun

Usually nitrogen or argon gas that carries powder into the thermal spray process. Casehardening See Carburising

an inert gas used to carry some other substance into a process For example a carrier gas would be bubbled through a bubbler to carry vapor into a process. The carrier gas is inert to the extent that it does not take part in the process reaction.