| Acronym | Meaning |
| NPD | Nitrogen Phosphorus Detector (gas Chromatography) |
| RP | Reinforced Plastics |
| CMB | Completely Mixed Batch |
| DIOS | Direct Iron Ore Smelting |
| ETO | Elliptical-type Orbital |
| SAR | Sequential Adiabatic Reduction |
| CDS/ISIS | CDS/Integrated Set Of Information System |
| LAIV | Live Attenuated Influenza Virus |
| ASB | Ambient Stds. Branch [of The US EPA] |
| OCE | Overall Control Efficiency |