| Acronym | Meaning |
| BRC | Basic Regulatory Control |
| NCLI | National Chemical Laboratory For Industry (Japan) |
| CPSA | Consumer Product Safety Act |
| UNFCCC | United Nations Framework Convention On Climate Change |
| WCDF | Worse Case Dilution Factor (in Receiving Water) |
| QPF | Quantitative Precipitation Forecasts |
| EUSIDIC | European Society For Information Dissemination In Chemistry |
| SC-FLAPW | Self-consistent Full-potential Linearized-augmented-plane-wave |
| GBS | Generalized Bohr-Sommerfeld (quantization Method) |
| IPNSO | Independent-pair Natural Spin Orbital |