| Acronym | Meaning |
| HCS | Hazard Communication Standard |
| DSS | Decision Support System |
| BOVB | Biorthogonal Valence Bond |
| AES | Auger Electron Spectroscopy |
| ECP | Exchange Core Polarization |
| VES | Vertical Elec. Sounding |
| NATICH | National Air Toxics Information Clearinghouse |
| ECP | Estimated Critical Position |
| LAICP | Laser Ablation Inductively Coupled Plasma |
| VLT | Very Large Telescope |