| Acronym | Meaning |
| BPWTT | Best Practical Wastewater Treatment Technology |
| NOEL | No Observable Effect Level (in Animal Tests) |
| SSSA | Soil Science Society Of America |
| ARISS | Angle Resolved Ion Scattering Spectroscopy |
| TREF | Temperature Rising Elution Fractionation |
| INDO/S | INDO/spectroscopic Approxn. |
| WRAP | Waste Reduction And Prevention Act (Manitoba |
| MAO | Modified Atomic Orbital |
| NELC | Non-exclusion Liquid Chromatography |
| MRINDO/S | Modified Rydberg Intermediate Neglect Of Differential Overlap/spectral (or Screening) |