| Acronym | Meaning |
| PWHT | Post-weld Heat Treatment |
| SPADE | Stratospheric Photochemistry |
| DMPP | 1,1-dimethyl-4-phenylpiperazinium Iodide |
| ARRPA | Air Resources Regional Pollution Assessment Model |
| MPA | Multipurpose Additive |
| JAICI | Japan Association For International Chemical Information |
| VLE | Vapor-liquid Equilibrium |
| NDTT | Nil Ductility Transition Temperature |
| PRM | Primary Reference Material |
| AF | Anaerobic Filter |