| Acronym | Meaning |
| ELINCS | European List Of Notified Chemical Substances |
| ALAD | Delta-aminolevulinic Acid Dehydratase (lead Poisoning Indicator) |
| CHAOS | Canadian High Acceptance Orbit Spectrometer |
| LHP-RHF | Longuet-Higgins-Pople Restricted Hartree-Fock Method |
| IRS | Infrared Soldering |
| USMAR | Upflow Static-Media Anaerobic Reactor |
| HPW | High Pressure Welding |
| FIP | Flow Injection Potentiometry |
| MUSAC | Measurement Uncertainty Software In Analytical Chemistry |
| LRT | Long Range Transport |