| Acronym | Meaning |
| ASRL | Atmospheric Sciences Research Laboratory |
| TGCE | Thermal Gradient Capillary Electrophoresis |
| RITE | Research Institute Of Innovative Technology For The Earth (Japan) |
| LT2ESWTR | Long-Term 2 Enhanced Surface Water Treatment Rule [of US EPA] |
| RVP | Reid Vapor Pressure (used For Gasoline Volatility) |
| IRIS | Incorporated Research Institutes For Seismology |
| CRAMPS | Combined Rotation And Multiple-pulse Spectroscopy |
| HI | Hinkley Index |
| REA | Relaxed Eddy Accumulation |
| MS X(ALPHA) | Multiple-scattering X(alpha) Exchange Method |