TY JOUR TI REQUIREMENTS FOR ETHYLENE MOISTURE CONTENT AND COMPARATIVE ANALYSIS OF MEASUREMENT METHODS IN POLYETHYLENE PRODUCTION KW ethylene production KW ethylene moisture content KW moisture measurement methods JO Modern Technologies and Scientific and Technological Progress AU Il'ina, I.L. PY 2026 IS 2026 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»