| Acronym | Meaning |
| P-P | Peak-to-Peak (Value) |
| ARS | Archive And Retrieval Subsystem (PPCU) |
| SUMM | Summary |
| MSLD | Mass Spectrometer Leak Detector |
| SSPP | SYstem Safety Program Plan |
| HSF | Hypergot Servicing Facility |
| ETP | Equipment Test Plan |
| ADP | Automated Data Processing |
| RSDP | Remote Site Data Processor |
| QPRD | Quality Planning Requirements Document |