| Acronym | Meaning |
| AASHTO | American Association Of State And Highway Transportation Officials |
| RIDA | Reverse Isotope Dilution Analysis |
| LAMP | Laser Ablation Microprobe |
| RSM | Response Surface Method |
| TOM | Transition Operator Method |
| ACTS | Advisory Committee On Toxic Substances |
| PMIRRAS | Polarization Modulation Infrared Reflection Absorption Spectroscopy |
| LTPL | Low Temperature Photoluminescence |
| SNP | Sodium Nitroprusside |
| VESCF | Variable Electronegativity Self-consistent Field |