| Acronym | Meaning |
| UTL | Upper Tolerance Limit |
| IECA | International Erosion Control Association |
| SNCR | Selective Noncatalytic Reduction |
| POSS | Polyhedral Oligomeric Silsesquioxane |
| EIRFT | Extended Inversion-recovery Fourier Transform |
| PSM | Process Safety Management |
| AAAS | American Academy Of Arts And Sciences |
| RFDR | Radiofrequency-driven Dipolar Recoupling |
| ITER | International Thermonuclear Experimental Reactor |
| PDF | Pair Distribution Function |