TY JOUR TI ASSESSMENT OF THE IMPACT OF HARMFUL AND HAZARDOUS PRODUCTION FACTORS ON THE OPERATOR OF THE PRE-INSULATED PIPE PRODUCTION SITE KW harmful factor KW class (subclass) of working conditions KW hygienic standard JO Modern Technologies and Scientific and Technological Progress AU Dubovenko, E.O. AU Katul'skiy, Y.N. AU Ignatov, M.O. PY 2022 IS 2021 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»