| Acronym | Meaning |
| EHMI | Environmental Hazards Management Institute |
| JIS | Japan Industrial Standard |
| MQL | Minimum Quantifiable Limit |
| PAHO | Pan American Health Organization |
| LOPT | Lowest-order Perturbation Theory |
| HCF | High-cycle Fatigue |
| GO | Gas Oil |
| PPMA | Parts Per Million Atomic |
| WSC | World Semiconductor Council |
| PFEO | Perimeter Free Electron Orbital |