| Acronym | Meaning |
| FEL | Fixed Emission Limit |
| SRXRF | Synchrotron Radiation X-ray Fluorescence |
| SOEF | Specific Odor Emission Factor (odor Source Evaluation) |
| EFLE | Enhanced-fluidity Liquid Extraction |
| OASIS | Ocean And Atmospheric Sounding Interferometer System |
| HDD | Hard Disk Drive |
| EFPI | Extrinsic Fabry-Perot Interferometer Sensor |
| EDF | Environmental Defense Fund |
| ECPA | European Crop Protection Association |
| BCR | Bureau Communitaire De Reference (of The CEE = Commission Of European Communities |