TY JOUR TI CRITERIA MODEL ASSESSMENT OF TECHNOLOGICAL EQUIPMENT FIRE HAZARD LEVEL IN HYDROGEN POWER INDUSTRY KW hydrogen equipment KW hydrogen-containing gas KW criteria model parameters KW allowable values KW process area KW risk categories JO Problems of risk management in the technosphere AU Timoshenko, A.L. AU Samigullin, G.K. PY 2023 IS 2023 PB Saint-Petersburg University of State Fire Service of Emercom of Russia