| Acronym | Meaning |
| ARIAP | Acid Rain Impact Assessment Program |
| FSR | Fractional Synthesis Rate |
| GBCD | Grain Boundary Character Distribution |
| SXM | Scanning X-ray Microscope |
| HDS-MAT | Hydrodesulfurization Micro-activity Test |
| CTG | Control Technique Guidelines |
| PSS | Perturbed Stationary State |
| ALT | Alanine Aminotransferase |
| CSOV | Constrained Space Orbital Variation |
| APS | Aerodynamic Particle Sizer |