| Acronym | Meaning |
| CND | Circumnuclear Disk |
| ILS | Intracavity Laser Spectroscopy |
| LART | Laser Absorption Radiation Thermometry |
| VIM | Vacuum Induction Melting |
| TEOM | Tapered Element Oscillating Microbalance |
| AFFTC | Air Force Flight Test Center |
| LOI | Loss On Ignition |
| MITI | Ministry Of International Trade And Industry (Japan) |
| PEMFC | Polymer Electrolyte Membrane Fuel Cell |
| APCRC | Australian Petroleum Cooperative Research Center |