| Acronym | Meaning |
| ACR | Absolute Cryogenic Radiometer |
| IMO | International Maritime Organization |
| RSR | Rapid Solidification Rate |
| IUAM | Independent United Atom Model (in Positron Scattering By Mols.) |
| IAQP | Indoor Air Quality Program |
| GPC | Gel Permeation Chromatography |
| SSDW | Static-static Distorted-wave (method) |
| HCS | Hazard Communication Standard |
| HDC | Hydrodynamic Chromatography |
| GSO | General Spin Orbital |