| Acronym | Meaning |
| QFAA | Quartz Furnace Atomic Absorption |
| RMF | Rotating Morse Function (in Potential-surface Calcn.) |
| FIT | Flow Injection Titration |
| ICOH | International Commission On Occupational Health |
| AES | Auger Electron Spectroscopy |
| CRT | Continuously Regeneration Trap |
| AESA | Association Of Environmental Scientists And Administrators |
| BCNTF | Biofilm-Controlled Nitrifying Trickling Filter (for Wastewater Treatment) |
| FRDS | Federal Reporting Data System |
| PWIA | Plane-wave Impulse Approximation |