| Acronym | Meaning |
| IUCHF | Improved Uncoupled Hartree Fock |
| NOX | Nitrogen Oxides |
| ASU | Air Separation Unit |
| LIBORS | Laser Ionization Based On Resonance Saturation |
| BCRU | British Committee On Radiation Units And Measurements |
| PDECD | Pulsed Discharge Electron Capture Detector |
| MSFC | Marshall Space Flight Center |
| MIRC | Michael Initiated Ring Closure |
| MF | Membrane Filtration |
| EBI | Equivalent Background Illumination |