| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 325120 | 325120 | 325120 | Acetylene manufacturing | |||
| 325120 | 325120 | 325120 | Argon manufacturing | |||
| 325120 | 325120 | 325120 | Carbon dioxide manufacturing | |||
| 325120 | 325120 | 325120 | Chlorodifluoromethane manufacturing | |||
| 325120 | 325120 | 325120 | Chlorofluorocarbon gases manufacturing | |||
| 325120 | 325120 | 325120 | Compressed and liquefied industrial gas manufacturing | |||
| 325120 | 325120 | 325120 | Dichlorodifluoromethane manufacturing | |||
| 325120 | 325120 | 325120 | Dry ice (i.e., solid carbon dioxide) manufacturing | |||
| 325120 | 325120 | 325120 | Fluorinated hydrocarbon gases manufacturing | |||
| 325120 | 325120 | 325120 | Fluorocarbon gases manufacturing | |||
| 325120 | 325120 | 325120 | Gases, industrial (i.e., compressed, liquefied, solid), manufacturing | |||
| 325120 | 325120 | 325120 | Helium manufacturing | |||
| 325120 | 325120 | 325120 | Helium recovery from natural gas | |||
| 325120 | 325120 | 325120 | Hydrogen manufacturing | |||
| 325120 | 325120 | 325120 | Ice, dry, manufacturing | |||
| 325120 | 325120 | 325120 | Industrial gases manufacturing | |||
| 325120 | 325120 | 325120 | Liquid air manufacturing | |||
| 325120 | 325120 | 325120 | Monochlorodifluoromethane manufacturing | |||
| 325120 | 325120 | 325120 | Neon manufacturing | |||
| 325120 | 325120 | 325120 | Nitrogen manufacturing | |||
| 325120 | 325120 | 325120 | Nitrous oxide manufacturing | |||
| 325120 | 325120 | 325120 | Oxygen manufacturing |