| Acronym | Meaning |
| UF | Uncertainty Factor (in Oral RfD) |
| HTGR | High-Temperature Gas Reactor |
| ACBM | Advanced Cement-Based Materials |
| WMO | World Meteorological Organization |
| HYTEC | Hydrogen Thermoelectrochemical Converter (regenerative Fuel Cell) |
| LITA | Laser-induced Thermal Acoustics |
| SMT | Standards |
| EDA | Emergency Declaration Area |
| CIBE | Continuous Interfacial Bilayer Electrode |
| FID | Flame Ionization Detector (gas Chromatography) |