| Acronym | Meaning |
| ISX | Insoluble Starch Xanthate (ion Exchanger For Wastewater Treatment) |
| MP3 | Moeller-Plesset Third-order Perturbation Theory |
| AMBIENS | Atmospheric Mass Balance Of Industrially Emitted And Natural Sulfur |
| FRED | Flexible Regional Emissions Data System |
| RSSCT | Rapid Small-scale Column Test (of Granulated Activated Carbon) |
| WHMIS | Workplace Hazardous Materials Information System (Canada) |
| LOSIS | Law Of The Sea Information System |
| OSWV | Osteryoung Square Wave Voltammetry |
| AQL | Acceptable Quality Levels |
| NACCHO | National Association Of County And City Health Officials |