| Acronym | Meaning |
 | HLB | Hydrophilic-lipophilic Balance (of Surfactants) |
| EI | Electron Impact |
| EMR | Electromagnetic Radiation |
| BTU | British Thermal Unit |
| LEL | Lowest Effect Level |
| UNITAR | United Nations Institute For Training And Research |
| QGLE | Quantum Generalized Langevin Equation |
| ACID | Acidification Chemistry Information Database |
| EIS | Environmental Impact Statement |
| SLAM | Scanning Laser Acoustic Microscopy |
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