| Acronym | Meaning |
| CST | Capillary Suction Time (sludge Dewatering Parameter) |
| STNAA | Short Time Neutron Activation Analysis |
| RTECS | Registry Of Toxic Effects Of Chemical Substances (NLM) |
| ISX | Impurity Study Expt. |
| PINS | Portable Isotopic Neutron Spectroscopy |
| QPM | Quantum Poincare Map |
| ASTHO | Association Of State And Territorial Health Officers |
| MOMP | Major Outer Membrane Protein |
| NAWDEX | National Water Data Exchange |
| SOPHF | Spin And Orbital Polarized Hartree-Fock |