| Acronym | Meaning |
| RAS | Restricted Active Space (wave Function) |
| RNAA | Radiochemical Neutron Activation Analysis |
| SIMS | Secondary Ion Mass Spectrometry |
| MVEG | Motor Vehicle Emissions Group |
| OB/OD | Open Burn/open Detonation |
| PLUARG | Pollution From Land Use Activities Reference Group |
| DAA | Diacetone Alcoholpar |
| SPE | Solid Polymer Electrolyte |
| PEO | Poly(ethylene Oxide) |
| XEAES | X-ray Excited Auger Electron Spectroscopy |