| Acronym | Meaning |
| PHF | Perturbative Hartree-Fock |
| AFUP | Alternative Fuels Utilization Program |
| SCISAS | Size Classifying Isokinetic Sequential Aerosol Sampler |
| ATBN | Amine Terminated Butadiene Acrylonitrile (rubber) |
| PFTNA | Pulsed Fast Thermal Neutron Analysis |
| ILCT | Intraligand Charge-transfer |
| RQ | Respiratory Quotient |
| SRGO | Straight Run Gas Oils |
| EOS | Equation Of State |
| PNP | Purine Nucleoside Phosphorylase |