| Acronym | Meaning |
 | IAHS | International Association Hydrological Sciences |
 | NASQUAN | National Stream Water Quality Accounting Network |
 | WPS | Wet Powder Spraying (in Ceramics Manuf.) |
 | PON | Pump Octane Number |
 | VES | Vapor Extraction System |
 | AAD | Atomic Absorption Detector |
 | EA | Equilibrated Aggregate (interplanetary Dust Particle) |
 | CBS | Complete Basis Set |
 | IHMM | Institute Of Hazardous Materials Management |
 | CNDO/OPTIC | CI Method For Elec. Transition Moments Of The Optical Transition Of Large Mols. Based On CNDO/S Parametrization |