In spite of the wide assortment, there is an acute lack of effective and sensitive scintillation blocks for detecting {beta}-radiation. One of the best single-crystal scintillators for detecting {beta}-radiation is CaF{sub 2}-Eu. The fundamental and applied characteristics of CaF{sub 2}-Eu-based scintillation detectors, including the temperature dependences of the light output and the energy resolution, as well as the state standard samples of light output based on them, are described. In elaborating this work new scintillation blocks for {beta}-detectors have been produced with sensitivity, determined from the minimum detectable activity of {beta}-preparations, three times higher than for CsI-Tl detectors. This is explained by the high light output of the scintillations and, most importantly, the much lower losses to reflection for the recorded {beta}-particles due to the low effective atomic number of CaF{sub 2}-Eu single crystals. This work was performed at the instrument plant of the Angarra Electrolysis Chemical Complex, taking into account the requirements of standards for scintillation detectors.