| Acronym | Meaning |
| CLU-IN | Clean-Up Information Bulletin Board System (formerly OSWER-BBS) |
| BSI | British Standards Institute |
| IHSI | Induction Heating Stress Improvement |
| OFISP | Oscillating Flow Injection Stripping Potentiometry |
| BIFL | Burst Integrated Fluorescence Lifetime |
| VGAAS | Vapor Generation Atomic Absorption Spectrometry |
| SCSAG | Small-curvature Semiclassical Adiabatic Ground-state (tunneling Approxn.) |
| HWERL | Hazardous Waste Engineering Research Laboratory (USEPA Cincinnati) |
| DBRTS | Double-barrier Resonant Tunneling Structure |
| SOS | Surfaces Of Section Method (semiclassical Calcn. Of Eigenvalues) |