Ответ:

оответ по ссылке: https://omgtu.ru/general_information/institutes/petrochemical_institute/department_of_quot_safety_quot/direction-20-03-01-technosphere-safety-program-safety/%D0%9C%D0%A3_%D0%BA_%D0%BF%D1%80%D0%B0%D0%BA%D1%82._%D1%80%D0%B0%D0%B1._%D0%A4%D0%A5_%D0%92%D0%9F%D0%A4__%D0%A1%D1%82%D0%B8%D1%88%D0%B5%D0%BD%D0%BA%D0%BE_2013.PDF