| Acronym | Meaning |
| LIBWE | Laser-induced Backside Wet Etching |
| ARA | Aggregate Risk Analysis |
| DPUMPN | Double-annihilation Procedure Unrestricted Moeller-Plesset Nth-order |
| BHMA | British Hard Metal Association |
| PNP | Purine Nucleoside Phosphorylase |
| TPMB | Two-potential-modified Born (approxn. In Inelastic Collisions) |
| ATA | Anaerobic Toxicity Assay |
| VSS | Volatile Suspended Solids |
| ELA | Experimental Lakes Area (northwest Ontario) |
| COV | Coefficient Of Variation |