| Acronym | Meaning |
| HACS | Hazard Assessment Computer System |
| APRF | Acute Phase Response Factor |
| MESA | Maximum Entropy Spectral Analysis |
| SIMS | Secondary Ion Mass Spectrometry |
| BOD | Biochemical Oxygen Demand |
| LPA | Low Profile Additive [in Plastic Composites] |
| DPPC | Dipalmitoyl Phosphatidylcholine |
| PON | Particulate Organic Nitrogen |
| ASTER | Acceptable Short-term Exposure Range |
| MSM | Multishell Method |