| Acronym | Meaning |
| ABWAG | Abwasserabgabengestres (Germany Wastewater Discharge Law Regulates Cost Per Volume) |
| ESRF | European Synchrotron Radiation Facility |
| EESL | Environmental Ecological And Support Laboratory |
| OPEE | Organic Phase Enzyme Electrode |
| DPT | Degenerate Perturbation Theory |
| OBK | Oppenheimer-Brinkman-Kramers (approxn. In Atom-ion Electron-exchange Calcns.) |
| RRT | Relative Retention Time |
| APS | Autocorrelation Photon Spectroscopy |
| RLS | Recursive Least Squares (algorithm) |
| PPE | Poly(phenylene Ether)s |