| Acronym | Meaning |
| DPT | Diffuse Phase Transition |
| FAGE | Fluorescence Assay With Gas Expansion |
| AETE | Absorption-energy Transfer-emission |
| APIMS | Atmospheric Pressure Ionization Mass Spectrometry |
| BCRU | British Committee On Radiation Units And Measurements |
| REE | Rare Earth Element(s) |
| ERDA | Elastic Recoil Detection Analysis |
| LRM | Laboratory Reference Material |
| AQCDS | Air Quality Criteria Documents |
| PRFT | Partially Relaxed Fourier Transform |