| Acronym | Meaning |
| TID | Thermionic Ionization Detector |
| COV | Coefficient Of Variation |
| MPI | Modified Perturbation Iteration |
| ASHRAE | American Society Of Heating |
| SEDEX | Sedimentary Exhalative |
| FMEA | Failure Mode And Effect Analysis |
| RACS | Response Action Contractors |
| ASB | Ambient Stds. Branch [of The US EPA] |
| CCP | Capacitively Coupled Plasma |
| PHF | Perturbative Hartree-Fock |