| Acronym | Meaning |
| HAZWOPER | Hazardous Waste Operations And Emergency Response Regulations |
| RUP | Rumen-undegradable Protein |
| NFOM | Near-field Optical Microscopy |
| AFOSR | Air Force Office Of Scientific Research (USA) |
| HASL | Hot Air Solder Leveling [electronics] |
| LET | Light-emitting Transistor |
| ROHS | Restrictions On Hazardous Substances |
| QFAA | Quartz Furnace Atomic Absorption |
| ESR | Electroslag Refining |
| TD | Transmembrane Distillation |