| Acronym | Meaning |
| MIIT | Materials Interface Interactions Test |
| BAQ | Building Air Quality |
| SCSRC | Solids Contact Slurry Recirculating Clarifier(s) |
| SPO | Spin Projection Operator |
| IRMPD | Infrared Multiphoton Dissociation |
| ESD | Element-Specific Detector |
| PIPES | Piperazine-1 |
| EMI | Electromagnetic Interference |
| NCAP | Noncriteria Air Pollutants |
| FASSST | FAst Scan Submillimeter Spectroscopy Technique |