| Acronym | Meaning |
![](file.png) | SEI | SYstem Engineering Groundrule |
![](file.png) | TP&C | Thermal Protection And Control |
![](file.png) | CRN | Contract Revision Number |
![](file.png) | SDRD | SuPplier Data Requirements Description |
![](file.png) | POS | Portable Oxygen System |
![](file.png) | IT | Identification Transponder |
![](file.png) | TI | Technical Integration |
![](file.png) | INTERFACE | FInterface Functional Analysis |
![](file.png) | SOP | Spacelab OPportunity Payload |
![](file.png) | SIR-A | Shuttle Imaging Radar@A |