| Acronym | Meaning |
| CHAP | Chronic Hazard Advisory Panel |
| AGWSE | Association Of Ground Water Scientists And Engineers |
| FHMO | Fenske-Hall MO |
| ULPA | Ultra Low Penetration Air |
| GIXS | Grazing Incidence X-ray Scattering |
| FRDS | Federal Reporting Data System |
| LSF | Laser-saturated Fluorescence |
| STB | Semiempirical Tight Binding |
| HPIC | High-performance Ion Chromatography |
| VASS | Variable Angle Sampling Spinning |