| Acronym | Meaning |
 | DWTM | Distorted Wave T-matrix (for Electron-atom Scattering) |
 | PIES | Partial Integration Exterior Scaling (in Calcns. On Resonance Positions And Lifetimes |
 | SCBA | Self-Contained Breathing Apparatus |
 | PSRA | Pulse Surface Reaction Rate Analysis |
 | AISIT | Automatic Intelligent Sampler For Inorganic Trace Constituents |
 | ASV | Anodic Stripping Voltammetry |
 | I-TEF | International Toxicity Equvalency Factor |
 | PI | Polydispersity Index |
 | CIVB | Configuration Interaction Valence Bond |
 | FNAA | Fast Neutron Activation Analysis |