| Acronym | Meaning |
| HI | Hinkley Index |
| DWCDS | Drinking Water Criteria Documents |
| QA/QC | Quality Assurance/quality Control |
| CHP | Combined Heat Power |
| MBRSPT | Many-body Rayleigh-Schroedinger Perturbation Theory |
| ECEC | European Center For Environmental Communication |
| LOH | Loss Of Heterozygosity |
| QEEC | Quasimol. Extended Elementary Cell (for Electronic Structure Calcns. Of Crystals) |
| OSF | Odor Safety Factor |
| SPG | Shirasu Porous Glass |