| Acronym | Meaning |
| HSA | Hyperspherical Adiabatic (for Resonances In Electron-atom Scattering. Energy Levels |
| AFBBR | Anaerobic Fluidized Bed Biofilm Reactor |
| NOEL | No Observable Effect Level (in Animal Tests) |
| APR | Acoustic Paramagnetic Resonance |
| DAC | Derived Air Concentration |
| MQL | Method Quantitation Limit |
| PSLC | Polymer-stabilized Liquid Crystal |
| EYFP | Enhanced Yellow Fluorescent Protein |
| SEIRA | Surface-enhanced Infrared Absorption |
| TSD | Technical Support Document |