| Acronym | Meaning |
| WPAC | Working Party On Analytical Chemistry |
| IPPA | Independent Pair-potential Approximation |
| DIDA | Direct Isotope Dilution Analysis |
| FBA | Fluorescent Brightening Agent |
| LAIV | Live Attenuated Influenza Virus |
| GLAS | Geoscience Laser Altimeter System |
| RVD | Regulatory Volume Decrease |
| DOCKET | Enforcement Docket |
| RSFQ | Rapid Single Flux Quantum |
| SF-PNM | Step Function Perturbative Numerical Method |