| Acronym | Meaning |
| OFA | Oil Fly Ash |
| HFA | Humic And Fulvic Acids |
| AFC | Automatic Frequency Control |
| CASS | Computer Assisted Stratification And Sampling |
| DSVI | Diluted Sludge Volume Index |
| PIAS | Photon-counting Image Acquisition System |
| SORI | Sustained Off-resonance Irradn. |
| AEDE | Annual Effective Dose Equivalent |
| BRFI | Brewing Research Foundation International |
| ESE | Exact Static-exchange (approxn. In Scattering Calcns.) |