| Acronym | Meaning |
| PPGA | Plastic Pin Grid Array [electronic Package] |
| PSD | Passive Sampling Device(s) (for Air Pollution) |
| ESMSV | Exponential-spline Morse-spline Van Der Waals (interat.potential) |
| FCS | Fluorescence Correlation Spectroscopy |
| NEA | Nuclear Energy Agency |
| TPH | Total Petroleum Hydrocarbons |
| NCC | National Computing Center |
| CAAMP | Canadian Acid Aerosol Measurement Program |
| MCS | Media Cleanup Standard |
| DFA | Discontinuous Flow Analysis |