TY JOUR TI WATER QUALITY CONTROL DEVICES IN THE WORKSHOP OF WATER TREATMENT FACILITIES AT THE MUNICIPAL UNITARY ENTERPRISE OF THE ANGARSK CITY DISTRICT “ANGARSK WATER UTILI-TY” KW photometer KW salimeter KW turbidometer KW pH-meter KW ORP-meter JO Modern Technologies and Scientific and Technological Progress AU Chistoforova, N.V. AU Klenkov, A.A. PY 2024 IS 2024 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»