| Acronym | Meaning |
| PFTNA | Pulsed Fast Thermal Neutron Analysis |
| LEL | Lower Explosion Limit |
| HKF | Helgeson-Kirkham-Flowers (equation Of State) |
| BIFL | Burst Integrated Fluorescence Lifetime |
| TS | Transition State |
| BEIS | Biogenic Emissions Inventory System (US EPA) |
| REV | Ray Eigenvector (a Wave Function) |
| HEGO | Heated Exhaust Gas Oxygen |
| WTQA | Waste Testing And Quality Assurance |
| BHT | Butylated Hydroxytoluene |