| Acronym | Meaning |
| ECNICI | Electron Capture Negative Ion Chemical Ionization |
| TCF | Totally Chlorine-free [in Pulp Industry] |
| GDF | Generalized Density-functional (theory) |
| DOD | Dissolved Oxygen Deficit |
| NSCP | North Sea Community Program |
| POU | Point Of Use |
| BIRD | Blackbody Infrared Radiative Dissociation |
| CEMS | Conversion Electron Moessbauer Spectroscopy |
| SCMP | Self-consistent Madelung Potential |
| SETOC | International Sediment Exchange For Tests On Organic Contaminants |