List of CAS numbers, hazard categories, and reportable thresholds
 | | | REPORTING THRESHOLDS* |
| PRODUCT | CAS NUMBER | HAZARD CATEGORIES | LIQUID (GALLONS) | GAS (STANDARD CU. FT.) |
| Oxygen | 7782-44-7 | Fire Hazard, Sudden Release of Pressure, Immediate Health Hazard | 1,050 | 120,000 |
| Nitrogen | 7727-37-9 | Sudden Release of Pressure, Immediate Health Hazard | 1,480 | 138,000 |
| Argon | 7440-37-1 | Sudden Release of Pressure, Immediate Health Hazard | 860 | 96,700 |
| Carbon Dioxide | 124-38-9 | Sudden Release of Pressure, Immediate Health Hazard | 1,180 | 87,400 |
| Hydrogen | 1333-74-0 | Fire Hazard, Sudden Release of Pressure, Immediate Health Hazard | 16,930 | 1,920,000 |
| Helium | 7440-59-7 | Sudden Release of Pressure, Immediate Health Hazard | 9,590 | 960,000 |
| MAPP | 68476-85-7 (56%)
56960-91-9 (44%) | Fire Hazard, Sudden Release of Pressure | 2,100 | 90,000 |
| Propylene | 115-07-07 | Sudden Release of Pressure, Immediate Health Hazard | 1,927 | 93,030 |
| Acetylene | 74-86-2 | Fire Hazard, Sudden Release of Pressure, Reactive Hazard | 1,968 | 144,717 |
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