| Acronym | Meaning |
| BTU | British Thermal Unit |
| RICM | Reflection Interference Contrast Microscopy |
| SAW | Self-avoiding Walk [modeling] |
| FYNES | Fluorescence Yield Near Edge Spectroscopy |
| ICH | International Conference On Harmonization |
| IST | Internal Standardization Technique |
| PERALS | Photon-Electron Rejecting Alpha Liquid Scintillation |
| CNAEL | Committee On National Accreditation Of Environmental Laboratories (US EPA) |
| YFEGE | Yonei Free-electron-gas Exchange |
| AIHA | American Industrial Hygiene Association |