| Acronym | Meaning |
| FIM | Forced Impulse Method (in Atom Ion-impact Ionization) |
| XRS | X-Ray Spectroscopy |
| TIWLS | Time-independent Wave Packet Lippmann-Schwinger (equation) |
| NEL | No Effect Level |
| DAPC | Department Of Air Pollution Control |
| CLSV | Current Linear Sweep Voltammetry |
| EMT | Effective Mass Theory (in Electronic Wave Functions Calcn.) |
| TIC | Total Ion Current |
| MSA | Mean Spherical Approxn. |
| CASH | CaO-Al2O3-SiO2-H2O System |