| Acronym | Meaning |
| CRMMA | Chemical Reference Material Manufacturers Association |
| CEAS | Coulometric Electrode Array System |
| EMEFS | Eulerian Model Evaluation Field Study |
| CGRP | Calcitonin Gene Related Peptide |
| HMPAM | Hydrophobically Modified Polyacrylamide |
| GEASIC | Gradient-expansion Approxn. Self-interaction Correction (functional |
| BMAP | Biological Monitoring And Abatement Program |
| DOAS | Differential Optical Absorption Spectroscopy |
| MF | Membrane Filtration |
| RIOSA | Reactive Infinite-order Sudden Approxn. |