| Acronym | Meaning |
| CT | Disinfection Concentration Contact Time |
| EGP | Evolved Gas Profile |
| PESA | Proton Elastic Scattering Anal. |
| PAL | Positron Annihilation Lifetime |
| SORP | Southern Oxidants Research Program |
| PCN | Polychlorinated Naphthalene |
| AIN | American Institute Of Nutrition |
| LPA | Linearized Propagator Approximation |
| EHP | Electron-hole Plasma |
| HDES | Hydrodynamic Equilibrium System |