| Acronym | Meaning |
| PPH | Parts Per Hundred |
| CPS | Centimeter/second Viscosity Measurement |
| CAEAL | Canadian Association For Environmental Analytical Laboratories |
| HTTP | Hypertext Transfer Protocol |
| SRTC | Savannah River Technology Center |
| FBCB | Fixed Bed Circulating Bioreactor (for Wastewater Treatment) |
| CPE | Controlled-potential Electrolysis |
| RGB | Red Giant Branch (star) |
| IEA | International Energy Agency |
| NASO | Nasmyth Adaptive Optics System |