| Acronym | Meaning |
| MNDO-PM3 | Modified Neglect Of Diatomic Overlap-parametric Method |
| BAM | Brewster Angle Microscopy |
| GCS | Geo-Common Subsystem (subsystem Of AIRS) |
| AECMA | European Association Of Aerospace Manufacturers |
| LSDA | Local Spin Density Approximation |
| SC-FLAPW | Self-consistent Full-potential Linearized-augmented-plane-wave |
| NAMS | National Air Monitoring Station |
| SCD | Sulfur Chemiluminescence Detector |
| EBEBO | Extended Bond Energy Bond Order (quantum Calcn. Method) |
| AEGL | Acute Exposure Guideline Level |