| Acronym | Meaning |
| AICHE | American Institute Of Chemical Engineers |
| NWWA | Northwest Water Authority (UK) |
| LDPE | Low Density Polyethylene |
| SASS | Source Assessment Sampling System |
| PDEA | Preliminary Draft Environmental Assessment |
| AOS | Alpha Olefin Sulfonate (surfactant) |
| AF | Anaerobic Filter |
| PAL | Positron Annihilation Lifetime |
| ESE | Exact Static-exchange (approxn. In Scattering Calcns.) |
| PUMP | Pure (alpha-spin-state) Unrestricted Moeller-Plesset Nth-order (wave Function) |