| Acronym | Meaning |
| RTP | Research Triangle Park |
| ID | Isotope Dilution |
| GTAW | Gas-tungsten Arc Welding |
| OPIDP | Organophosphate Induced Delayed Polyneuropathy |
| NARS | National Asbestos Registry System |
| 2PH TDA | Two-particle-hole Tamm-Dancoff Approximation (for Closed-shell |
| ACWM | Asbestos Containing Waste Material |
| UNCED | United Nations Conference On Environment And Development |
| WALTZ | Wonderful Alternating Phase Technique For Zero Residual Splittings |
| EB | Extended Basis (set) |