| Acronym | Meaning |
| VLBI | Very Long Baseline Interferometry |
| ETS | EPCRA 313 Tracking System |
| ASB | Ambient Stds. Branch [of The US EPA] |
| QMOM | Quadrature Method Of Moments |
| VMR | Vol. Mixing Ratio |
| CBC | Complete Blood Count |
| SETAC | Society Of Environmental Toxicology And Chemistry |
| ESG | Electronic Specialty Gases |
| MPE | Multiphoton Excitation |
| PMN | Premanufacture Notice |