| Acronym | Meaning |
 | RDW | Return Data Words |
| PMPL | Preferred Mechanical Parts List |
| EPDB | Electrical Power Distribution Box |
| HZ | Hertz (Cycles Per Second) |
| GPC | Gel Permeation Chromatograph |
| ETR | Eastern Test Range |
| SCFM | Standard Cubic Feet Per Minute |
| OSR | Operations Support Room |
| LOI | Lunar Orbit Insertion |
| ESSA | Environmental Sciences Services Administration |
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