| Acronym | Meaning |
| CCA | Copper Chromium Arsenic |
| PET | Potential Evapotranspiration |
| TDPAD | Time Differential Perturbed Angular Distribution |
| NOS | Not Otherwise Specified |
| FFF | Field-flow Fractionation |
| SAMBA | Satellite For Measurement Of Background Anisotropies |
| VOST | Volatile Organic Sampling Train |
| FAM | Friable Asbestos-containing Material |
| BARF | Best Available Retrofit Facility |
| SPIRIT | Spatial IR Imaging Telescope |