| Acronym | Meaning |
| AI | Agpaitic Index [represents The (Na2O + K2O)/Al2O3 Ratio] |
| BARF | Best Available Retrofit Facility |
| CLOT | Carbon Layer Open Tubular (column) |
| FP-LMTO | Full-potential Linear Combination Of Muffin-tin Orbitals |
| TBBA | Tightly-bound-on-the-bond Approxn. (band Structure Crystal) |
| NAA | Neutron Activation Analysis |
| NSPS | New Source Performance Standards |
| SXRFMA | Synchrotron X-ray-fluorescence Microanalysis |
| ODPAS | Optically Detected Photoacoustic Spectroscopy |
| QSM | Quantum Shell Model |