| Acronym | Meaning |
| ETA | Eigenstructure Tracking Analysis |
| AFR | Air To Fuel Ratio |
| ICRP | International Commission On Radiological Protection |
| SCADS | Superfund Chemical Analysis Data System (see CARD) |
| CARD | Contract Laboratory Program Analytical Results Database |
| RLS | Resonance Light Scattering |
| MELISA | Multianalyte Enzyme-linked Immunosorbent Assay |
| HTML | Hypertext Markup Language |
| SCC-DVM | Self-consistent-charge-discrete-variational Method |
| OMNMHCE | Organic Material Nonmethane Hydrocarbon Equivalent |