| Acronym | Meaning |
| QRA | Quantitative Risk Assessment |
| EEM | Excitation-emission Matrix |
| LAS | Laser Absorption Spectroscopy |
| BCS-CRM | British Chemical Standard-Certified Reference Material |
| CV | Calibrated Volume |
| HS-MR-CCSD | Hilbert Space-multireference-coupled Cluster (with) Single (and) Double (excitations) |
| SXRD | Surface X-ray Diffraction |
| RQTOX | Reportable Quantities For Chronically Toxic Hazardous Substances |
| GGS | Global Geospace Science |
| SCOTCH | Spin Coherence Transfer In Chemical Reactions |