| Acronym | Meaning |
| LRM | Laboratory Reference Material |
| EP TOX | Extraction Procedure Toxicity Test (USEPA Method) |
| CEMAS | Complete Element Matrix Analysis From Scattering |
| MR-MP2 | Multireference Moeller-Plesset For Two-configuration Wave Function |
| PTWI | Provisional Tolerable Weekly Intake |
| AU | Astronomical Unit |
| COCI | Committee On Chemistry And Industry (IUPAC) |
| SMT | Standards |
| MRFM | Magnetic Resonance Force Microscope |
| PBP | Pheromone-binding Protein |