DONETS, S. Y.; V.V., L.; PROKHORENKO, E. THERMOGRAPHIC METHOD FOR DIAGNOSIS AND ESTIMATION THE EFFICIENCY OF INSTALLATIONS FOR UV RAY DISINFECTION OF WATER. Bulletin of Sumy National Agrarian University. The series: Mechanization and Automation of Production Processes, n. 1 (43), p. 3-7, 31 Mar. 2021.