| Acronym | Meaning |
| HSWA | Hazardous And Solid Waste Amendments Of 1984 |
| PAO | Polyphosphate Accumulating Organism |
| APC | Adenomatous Polyposis Coli |
| EOR | Enhanced Oil Recovery |
| LFCC | Laboratory-frame Close-coupling (for Electron-mol. Scattering) |
| TC | Toxicity Characteristic |
| PVS | Performance Verification Sample |
| ECNI | Electron Capture Negative Ionization |
| EO | Ethylene Oxide |
| AOMA | American Occupational Medical Association |