| Acronym | Meaning |
 | ECRA | Engineering Change Request/Authorization |
| PD&RS | Payload Deployment And Retrieval Subsystem |
| MSCR | Measurement/Stimuli Change Request |
| EMEC | Electromagnetic Effects Compatibility |
| SLCA | ERNO Spacelab Contract Administration |
| STA | Structural Test Article |
| HTS | Heat Transfer System |
| STM | Support Test Manager |
| SMS | Solar Maximum Satellite |
| IPS | Ips International Pipe Standard |
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