| Acronym | Meaning |
| HPAC | High Performance Affinity Chromatography |
| WEF | Water Environment Federation (formerly WPCF) |
| HSV | Herpes Simplex Virus |
| RCS | Reaction Control System |
| CCW | Constituent Concentrations In Waste |
| BJT | Bipolar Junction Transistors |
| RCA | Ricinus Communis Agglutinin |
| AIBS | American Institute Of Biological Sciences |
| WPI | Waste Policy Institute |
| LOI | Loss On Ignition |