| Acronym | Meaning |
| HRATS | High-Rate Anaerobic Treatment Systems |
| HID | High Intensity Discharge |
| FCS | Fluorescence Correlation Spectroscopy |
| GIAO | Gage-independent Atomic Orbital |
| PSM | Pflanzenschutzmittel; Pesticides |
| NRA | National Rivers Authority (UK) |
| BEPR | Biological Excess Phosphorus Removal |
| FEG | Field Emission Gun |
| TOPO | Trioctylphosphine Oxide |
| ICTA | International Confederation Of Thermal Analysis |