TY JOUR TI PROCEDURE FOR CARRYING OUT GAS DANGEROUS WORKS IN THE PETROCHEMICAL PRODUCTION KW gas hazardous work KW work of increased danger KW work permit KW work procedure KW ensuring safe working conditions JO Bulletin of the Angarsk State Technical University AU Baranov, D.E. PY 2022 IS 1 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»