| Acronym | Meaning |
| LSIMS | Liquid Secondary Ion Mass Spectrometry |
| TLM | Transmission Line Method |
| RQDO | Relativistic Quantum Defect Orbital (method In Calcns. Of Oscillator Strengths) |
| NEDOR | Nuclear Electron Double Resonance |
| ERDA | Elastic Recoil Detection Analysis |
| SERRS | Surface-Enhanced Resonance Raman Spectroscopy |
| IRP | Installation Restoration Program |
| SWTR | Surface Water Treatment Rule |
| FN | Ferrite Number |
| ALAP | As Low As Possible |