| Acronym | Meaning |
| NISO | National Information Standards Organization |
| HAZOP | Hazard And Operability Study |
| HAM/N | Hydrogenic Atoms In Molecules |
| IUPAB | International Union Of Pure And Applied Biophysics |
| CWF | Coal-water Fuel |
| EMS | Environmental Management System |
| SPALEED | Spot Profile Analysis Low Energy Electron Diffraction |
| LPAS | Long Pathlength Absorbance Spectroscopy |
| POA | Peierls-Onsager Approxn. (in Electronic Structure Calcns.) |
| PSMO | Pseudo MO |