| Acronym | Meaning |
| AFOEHL | Air Force Occupational And Environmental Health Laboratory |
| DRF | Direct Reaction Field (for Intermol. Interactions) |
| HRM | Hydrochlorination Reaction Mixt. |
| HIT | Hazard Information Transmission |
| CCC | Convergent Close Coupling |
| EPAAR | EPA Acquisition Regulation Manual |
| TNVOX | Total Nonvolatile Org. Halogen Compds. |
| SCM | Surface Complexation Model (of Adsorption) |
| NLMO | Nonorthogonal Localized Molecular Orbital |
| IRDO | Intermediate Retention Of Differential Overlap |