Auto and Transport
| Acetylene | iso-Butane | Ethane | Nitric oxide | Propene |
| Air, synthetic | Carbon dioxide | Ethene | Nitrogen dioxide | Sulphur dioxide |
| Ammonia | Carbon monoxide | Fluorine | Nitrous oxide | Sulphur hexafluoride |
| Argon | Carbonyl sulphide | Helium | Oxygen | Xenon |
| n-Butane | Epoxyethane | Methane | Propane |
Chemical Industries Except etrochemical and Pharmaceutical
| Acetylene | Carbon dioxide | Dichlorofluoromethane | Hydrogen bromide | Oxygen |
| Aminomethane | Carbon monoxide | Dichlorosilane | Hydrogen chloride | Phosgene |
| Ammonia | Carbon oxyfluoride | 1,1-Difluoroethane | Hydrogen cyanide | Phosphine |
| Boron trichloride | Carbonyl sulphide | 1,1-Difluoroethene | Hydrogen fluoride | Propadiene |
| Boron trifluoride | Chlorine | Dimethylamine | Hydrogen iodide | Propane |
| Bromomethane | Chlorodifluoromethane | 2,2-Dimethylpropane | Hydrogen sulphide | Propene |
| Bromoethene | Chloroethane | Epoxyethane | Methane | Propyne |
| 1,3-Butadiene | Chloroethene | Ethanamine | Methanethiol | Silicon tetrachloride |
| n-Butane | Chloromethane | Ethane | Methoxyethene | Silicon tetrafluoride |
| iso-Butane | Chloropentafluoroethane | Ethanedinitrile | Methoxymethane | Sulphur dioxide |
| 1-Butene | Cyanic chloride | Ethene | Nitric oxide | Tetrafluoromethane |
| cis-2-Butene | Cyclopropane | Ethyl formate | Nitrogen | Trichlorosilane |
| iso-Butene | Deuterium | Fluorine | Nitrogen dioxide | Trimethylamine |
| trans-2-Butene | Diborane | Hexafluoroethane | Nitrogen trifluoride | Xenon |
| 1-Butyne | Hydrogen | Nitrous oxide |
Energy, Electricity, Gas and Water
| Air, synthetic | Chlorine | Hexafluoroethane | Nitrous oxide | Sulphur hexafluoride |
| Ammonia | Chloroethene | Hydrogen | Octafluoropropane | |
| n-Butane | Deuterium | Hydrogen sulphide | Oxygen | |
| iso-Butane | Dichlorodifluoromethane | Methane | Propane | |
| Carbon dioxide | 1,2-Dichlorotetrafluoroethane | Nitric oxide | Propene | |
| Carbon monoxide | Ethane | Nitrogen | Silicon tetrafluoride | |
| Carbonyl sulphide | Helium | Nitrogen dioxide | Sulphur dioxide |
Manufacturing Industries except Automotive and OEM
| Acetylene | Chlorodifluoromethane | Ethane | Krypton | Silane |
| Air, synthetic | Chloroethane | Ethanedinitrile | Methane | Silicon tetrachloride |
| Aminomethane | Chloroethene | Ethene | Methanethiol | Sulphur dioxide |
| Ammonia | Chloromethane | Ethyl formate | Methoxyethene | Sulphur hexafluoride |
| Argon | Chloropentafluoroethane | Fluorine | Methoxymethane | Tetrafluoroethane |
| Boron trichloride | Deuterium | Fluoromethane | Neon | Tetrafluoromethane |
| Bromomethane | Diborane | Helium | Nitrogen | Trifluoromethane |
| Bromoethene | Dichlorodifluoromethane | Hexafluoroethane | Nitrogen trifluoride | Xenon |
| n-Butane | Dichlorofluoromethane | Hydrogen | Nitrous oxide | |
| iso-Butane | 1,2-Dichlorotetrafluoroethane | Hydrogen bromide | Octafluoropropane | |
| Carbon dioxide | 1,1-Difluoroethane | Hydrogen chloride | Oxygen | |
| Carbon monoxide | Difluoromethane | Hydrogen cyanide | Phosphine | |
| Chlorine | Dimethylamine | Hydrogen fluoride | Propane | |
| Chlorodifluoroethane | Epoxyethane | Hydrogen sulphide | Propene |
Medical, Hospitals and Health Care
| Acetylene | Chloroethane | Ethene | Nitrogen | Trimethylamine |
| Air, synthetic | Chloromethane | Helium | Nitrous oxide | Xenon |
| Argon | Cyclopropane | Krypton | Octafluoropropane | |
| Carbon dioxide | Deuterium | Neon | Oxygen | |
| Carbon monoxide | Epoxyethane | Nitric oxide | Sulphur hexafluoride |
Metal Industries
| Air, synthetic | iso-Butane | Dimethylamine | Hydrogen fluoride | Propane |
| Ammonia | Carbon dioxide | Ethane | Hydrogen sulphide | Silicon tetrachloride |
| Argon | Carbon monoxide | Fluorine | Methane | Silicon tetrafluoride |
| Boron trichloride | Chlorine | Helium | Nitrogen | Sulphur dioxide |
| Boron trifluoride | Chloromethane | Hydrogen | Nitrogen trifluoride | Sulphur hexafluoride |
| Bromoethene | Diborane | Hydrogen chloride | Oxygen |
Original Analytical Equipment Manufacturers
| Acetylene | iso-Butane | Hydrogen | Nitric oxide | Propane |
| Air, synthetic | Carbon dioxide | Hydrogen cyanide | Nitrogen | Sulphur Hexafluoride |
| Ammonia | Carbon monoxide | Krypton | Nitrogen dioxide | Xenon |
| Argon | 2,2-Dimethylpropane | Methane | Nitrous oxide | |
| n-Butane | Helium | Neon | Oxygen |
Petrochemical Industries
| Acetylene | cis-2-Butene | Diborane | Hydrogen | Oxygen |
| Aminomethane | iso-Butene | 1,1-Difluoroethane | Hydrogen bromide | Phosgene |
| Ammonia | trans-2-Butene | 1,1-Difluoroethene | Hydrogen chloride | Propadiene |
| Boron trichloride | 1-Butyne | Dimethylamine | Hydrogen fluoride | Propane |
| Boron trifluoride | Carbon dioxide | 2,2-Dimethylpropane | Hydrogen sulphide | Propene |
| Bromomethane | Carbon monoxide | Epoxyethane | Methane | Propyne |
| Bromoethene | Chlorine | Ethanamine | Methanethiol | Sulphur dioxide |
| 1,3-Butadiene | Chlorodifluoromethane | Ethane | Methoxyethene | Tetrafluoroethane |
| n-Butane | Chloroethane | Ethene | Methoxymethane | Trimethylamine |
| iso-Butane | Chloromethane | Fluorine | Nitric oxide | |
| 1-Butene | Cyclopropane | Hexafluoroethane | Nitrogen |
Pharmaceutical Industries
| Air, synthetic | Bromoethene | Ethyl formate | Methanethiol | Propane |
| Aminomethane | Carbon dioxide | Hydrogen | Methoxymethane | Propene |
| Ammonia | Carbonyl sulphide | Hydrogen bromide | Nitrogen | Propyne |
| Argon | Chloromethane | Hydrogen chloride | Nitrous oxide | Sulphur dioxide |
| Boron trichloride | Dimethylamine | Hydrogen cyanide | Oxygen | Tetrafluoroethane |
| Boron trifluoride | Epoxyethane | Hydrogen sulphide | Phosgene | Trimethylamine |
| Bromomethane | Ethanamine | Methane | Propadiene |
Semiconductor Industries
| Acetylene | Chloropentafluoroethane | Hexafluoroethane | Nitric oxide | Silicon tetrafluoride |
| Ammonia | Deuterium | Hydrogen | Nitrogen | Sulphur hexafluoride |
| Argon | Diborane | Hydrogen bromide | Nitrogen trifluoride | Tetrafluoromethane |
| Arsine | Dichlorosilane | Hydrogen chloride | Nitrous oxide | Trichlorosilane |
| Boron trichloride | 1,2-Dichlorotetrafluoroethane | Hydrogen fluoride | Octafluoropropane | Trifluoromethane |
| Boron trifluoride | Difluoromethane | Hydrogen iodide | Oxygen | Xenon |
| Carbon dioxide | Fluorine | Hydrogen sulphide | Phosphine | |
| Chlorine | Fluoromethane | Krypton | Silane | |
| Chloromethane | Helium | Neon | Silicon tetrachloride |
Research Institutes and Iniversities
l gases are used or can be used for research.
