| Acronym | Meaning |
| T-GAS | Trace Gas Accounting System |
| BHN | Brinell Hardness Number |
| ZPC | Zero-point (energy) Corrections |
| EOSDIS | Earth Observing System Data Information System |
| EDCS | Energy Distribution Curve Spectroscopy |
| NOM | Natural Organic Matter |
| EOS | Equation Of State |
| WPAC | Working Party On Analytical Chemistry |
| LMR | Laser Magnetic Resonance |
| DEHP | Bis(2-ethylhexyl) Phthalate |