| Acronym | Meaning |
| CIRES | Cooperative Institute For Research In Environmental Sciences |
| PPH | Parts Per Hundred |
| LASE | Lidar Atmospheric Sensing Experiment |
| TOMS | Total Ozone Mapping Spectrometer |
| IAB | Information Access Branch |
| APSGF | Antisymmetrical Product Of Strongly Orthogonal Group Functions (a Wave Function) |
| SCOT | Shell Claus Off-gas Treating |
| PSES | Pretreatment Standards For Existing Sources |
| UHP | Ultra High Purity |
| MAS | Magic Angle Spinning (solid State NMR) |