| Acronym | Meaning |
| MACS | Modified Atomic Charge Superposition (in Calcns. On Atom-surface Scattering Potentials) |
| OSF | Odor Safety Factor |
| XRFA | X-ray Fluorescence Analysis |
| CCGT | Combined Cycle Gas Turbine |
| DADMAC | Diallyldimethylammonium Chloride |
| TRC | Total Residual Chlorine |
| BPB | 4-bromophenacyl Bromide |
| LLS | Linear-least Squares |
| BBFM | Bond-bending Force Model (for Phonon Calcns.) |
| SUMER | Solar UV Measurements Of Emitted Radiation |