| Acronym | Meaning |
| ANOVA | Analysis Of Variation |
| ISM | Interaction Site Model (in Statistical Mechanics Of Fluids) |
| FLMS | Femtosecond Laser Mass Spectrometry |
| WWEMA | Waste And Wastewater Equipment Manufacturers Association |
| HIS | High Intensity Spectrometer |
| FIP | Full Intra-pair (spin-coupling) (wave Function) |
| CNDO/B | Complete Neglect Of Differential Overlap / Boyd |
| ASTER | Acceptable Short-term Exposure Range |
| ASED | Atom Superposition-electron Delocalization |
| NOI | Notice Of Intent |