| Acronym | Meaning |
| ABES | Alliance For Balanced Environmental Solutions |
| FOM | Figure Of Merit |
| BAT | Biol. Tolerance Value (German Std.) |
| ICPP | Idaho Chemical Processing Plant |
| ACE | Angiotensin-converting Enzyme |
| ICAME | International Commission On Application Of Moessbauer Effect |
| SSSP | Simulation Of Single Sludge Processes |
| SEDM | Selective Excitation Double Moessbauer |
| HPPM | Hole-particle Potential Model (in Mol. Excited States Calcns.) |
| HSP | Heat Shock Protein |