Air Liquide manufactures propane pure gas with up to 99.5% purity. It is used in a variety of applications, including chemical synthesis, refrigeration and flame gas (AAS). Propane is also available as part of various specialty gas mixtures, including two-component and multi-component gas mixtures used in multiple applications including industrial hygiene and safety, and laboratory.
Propane gas mixtures are used as span gas calibration mixtures in engine emissions testing in the automotive industry.
Air Liquide offers ScottTM brand propane gas mixtures as EPA protocols and CEM DAILY STANDARDSTM.