Air Liquide manufactures methane pure gas with up to 99.999% purity to be used in a variety of applications, including chemical synthesis, radiation detection and flame gas. Methane is also available as part of various specialty gas mixtures, including hydrocarbon chromatographic standards and natural gas and liquid standards including calorimetric, high-ethane, extended analysis, GPA, helium, pipeline and Specific BTU.
Methane in air and/or nitrogen gas mixtures are used as a span gas calibration mixtures in engine emissions testing in the automotive industry. They are ISO 17025 accredited and Part 86 compliant. When smaller quantities of gas are needed, methane can be found in two-component and multi-component gas mixtures including paraffins, olefins and TO mixtures used in industrial hygiene and safety and laboratory applications.