| Acronym | Meaning |
| FIE | Flow-injection Extraction |
| CPST | Classical Perturbation Scattering Theory |
| PPLV | Preliminary Pollutant Limit Value |
| FPC | Fractional Parentage Coeff. (in Group-theor. Calcns.) |
| UKAWRG | United Kingdom Acid Waters Review Group |
| ERDA | Elastic Recoil Detection Analysis |
| QPD | Quadrature Phase Detection |
| ICPMS | Inductively Coupled Plasma Mass Spectrometry |
| IWMIS | INEL Industrial Waste Management Information System |
| ABWAG | Abwasserabgabengestres (Germany Wastewater Discharge Law Regulates Cost Per Volume) |