ČSN EN 62607-3-1 This standard describes the procedures and measures that should be followed to ensure the repeatability of measuring the quantum efficiency of luminescent materials. Materials covered by the method include nanoobjects such as quantum dots, nanophosphorescent particles, nanoparticles, nanofibers, nanocrystals, nanoplates, and other materials containing them. These nanomaterials can be in a liquid state (e.g. a colloidal solution of quantum dots) or a solid state (e.g. nanofibers containing luminescent particles). The standard covers both the acquisition of relative values by measuring luminescent materials in the liquid state and the acquisition of absolute values by measuring nanomaterials in their liquid or solid form.