QLF
QLF stands for:
- Quadratic formula (s) for solving quadratic equations, see Quadratic Equation # Solution Formulas
- Qualification Fund for Agriculture and Forestry in Schleswig-Holstein e. V.
- Quantitative light-induced fluorescence (engl. Quantitative Light-induced Fluorescence ) in dentistry
- Quick Lock Formula for coaxial connectors for high frequency applications, see coaxial connectors # QN, QLF and QMA