| Acronym | Meaning |
| EGW | Electrogas Welding |
| IAB | Information Access Branch |
| SOF | Soluble Organic Fraction |
| FCHL | Familial Combined Hyperlipidemia |
| HRS | Hyper-Rayleigh Scattering |
| NETD | Noise Equiv. Temp. Difference |
| SPCC | System Performance Check Compound |
| CDOM | Colored Dissolved Organic Matter |
| HMBP | Hazardous Materials Business Plan |
| TNBS | Trinitrobenzene Sulfonic Acid |