| Acronym | Meaning |
 | PDV | Pressure Disconnect Valve |
| PUSS | Pallet Utility Support Structure |
| FPL | Full Power Level |
| OS | On-Orbit Station |
| SF | Sliding Filter |
| TGA | Thermal Gravimetric Analysis |
| PIA | Project Impact Analysis |
| UCTA | Urine Collection Transfer Assembly |
| PSM | Pyro Substitute Monitor |
| PML | Preliminary Materials List |
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