| Acronym | Meaning |
| NACLA | The National Cooperation For Laboratory Accreditation |
| EMMA | End-member Mixing Analysis |
| FOEA | First-order Eikonal Approximation |
| HIAA | Hydroxyindoleacetic Acid |
| HIC | Hydrophobic Interaction Chromatography |
| TUES | Tubingen Ultraviolet Echelle Spectrometer |
| HASP | Harmonically Analyzed Sensitivity Profile |
| IAHE | International Association For Hydrogen Energy |
| BIAS | Bismuth-active Substance (in Surfactant Concn. Detn. In Environmental Tests) |
| EDGAR | Emissions Database For Global Atm. Research |