| Acronym | Meaning |
| MAC | Maximum Admissible Concentration |
| ETEAO | Even-tempered Exponential Atomic Orbital |
| PVC | Pigment Volume Concentration |
| PCI | Positive-ion Chemical Ionization (mass Spectrometry) |
| PTR | Photothermal Radiometry |
| NEL | No Effect Level |
| NFAIS | National Federation Of Abstracting And Information Services |
| SLMTO | Surface Linear (combination) Of Muffin-tin Orbitals |
| TWV | Trinkwasserverordnung (German Drinking Water Ordinance) |
| SVR | Systemic Vascular Resistance |