| Acronym | Meaning |
| BMW | Boiler Maintenance Workstation [EPRI Software] |
| PI | Plugging Index |
| CNDO/SW | Complete Neglect Of Differential Overlap / Sichel-Whitehead |
| MET | Multichannel Eikonal Theory (in Atom Electron-impact Excitation) |
| EMA | Effective Medium Approximation |
| PPV | Poly(phenylene Vinylene) |
| MEPAS | Multimedia Environmental Pollution Assessment System |
| NRTL | Non-random Two Liquid |
| NMVOC | Nonmethane Volatile Organic Compound |
| POSAP | Position-sensitive Atom Probe |