| Acronym | Meaning |
| IGARSS | International Geoscience And Remote Sensing Symposium |
| NPD | Normal Photoelectron Diffraction |
| PST | Porcine Somatotropin |
| COPNA | Condensed Polynuclear Aromatics |
| NDOL(ND0-L) | Neglect Of Differential Overlap-azimutal Quantum Number (of Valence Ao's) |
| SCCF | Self-consistent Crystal Field (method For Calcns. On Molecular Crystals) |
| GC-MS | Gas Chromatography-mass Spectrometry |
| NPRI | National Pollutant Release Inventory |
| OIML | Organization Internationale De Metrologie Legale |
| BSM | Breathing Shell Model |