| Acronym | Meaning |
| SCRI | Steel Can Recycling Institute |
| RKHS | Reproducing Kernel Hilbert Space |
| NCSCI | National Center For Standards And Certification Information |
| RFCC | Residue Fluid Catalytic Cracking |
| APTI | Air Pollution Training Institute |
| TRNOE | Transferred Nuclear Overhauser Effect |
| PTRI | Programmed Temperature Retention Index |
| CNPPA | Commission On National Parks And Protected Areas |
| OMNMHCE | Organic Material Nonmethane Hydrocarbon Equivalent |
| ARIA | Atm. Response In Aurora |