| Acronym | Meaning |
| SIP | State Implementation Plan |
| FPD | Flame Photometric Detector (gas Chromatography) |
| ARISS | Angle Resolved Ion Scattering Spectroscopy |
| SCLM | Scanning Confocal Laser Microscopy |
| AASHTO | American Association Of State And Highway Transportation Officials |
| LPAS | Laser Photoacoustic Spectroscopy |
| XAFS | X-ray Absorption Fine Structure |
| WASP | Workplace Analysis Scheme For Proficiency |
| CTL | Cytotoxic T Lymphocyte |
| TPR | Total Population Risk |