| Acronym | Meaning |
| LTTA | Low Temperature Thermal Aeration Process |
| RERS | Resonance-enhanced Raman Scattering |
| TEOS | Tetraethyl Orthosilicate |
| MDPE | Medium-density Polyethylene |
| MLS | Microwave Limb Sounder |
| AMWA | American Metropolitan Water Association |
| IRIS | Infrared Interferometer Spectrometer |
| ELDOR | Electron Double Resonance |
| BCS | British Chemical Standard |
| HMDI | Hexamethylene Diisocyanate |