| Acronym | Meaning |
| CSR | Constant Sampling Rate |
| WWEMA | Waste And Wastewater Equipment Manufacturers Association |
| ACRE | Automatic Climatological Recording Equipment |
| TRACS | Trends In Atmospheric Constituents Study |
| DDE | Dichlorodiphenyldichloroethylene |
| BCIRA | British Cast Iron Research Association |
| LOI | Limiting Oxygen Index [of Fire Retardant] |
| IA | Impulse Approximation |
| EMPPL | Effluent Monitoring Priority Pollutants List |
| ZOAO | Zero Overlap Of Atomic Orbital Approxn. |