| Acronym | Meaning |
| PFT | Pulmonary Functional Test(s) |
| AWM | Average Wave Function Method (in Calcns. On Scattering) |
| RVCM | Renormalized Virtual-crystal Method (for Electronic Structure) |
| EMS | Environmental Management System |
| STOIIP | Stock Tank Oil Initially In Place |
| GFC | Gel Filtration Chromatography |
| SPIE | Society Of Photo-Optical Instrumentation Engineers |
| CTB | Computer Technology Branch |
| HLB | Hydrophilic-lipophilic Balance (of Surfactants) |
| HAZ | Heat-affected Zone |