| Acronym | Meaning |
| LARVA | Light-absorption Ratio Variation Approach |
| RIR | Relative Inhalation Risk |
| NSR | Nitrile-silicone Rubber |
| HEDS | Human Exploration And Development Of Space |
| CETTP | Complex Effluent Toxicity Testing Program (US EPA) |
| APHA | American Public Health Association |
| HILDA | High-Latitude Exchange/Interior Diffusion-Advection Model |
| HEAS | Health Effects Assessments |
| CBNM | Central Bureau For Nuclear Measurements |
| FCI | Fuel Coolant Interaction |