| Acronym | Meaning |
| GT&A | Ground Test And Acceptance |
| SCIS | Standard Cubic Inches Per Second |
| MP | Medium Pressure |
| LHE | Liquid Helium |
| SST | Subsystem Terminal On Spacelab |
| EVS | Equipment VisibilitY System |
| SFS | Shuttle Flight Status |
| LVDT | Linear Variable Differential Transformer |
| LEO | Low Earth Orbit |
| GHA | General Housekeeping Area |