A cargo pumproom or other enclosed space which contains cargo handling equipment on a chemical tanker shall be fitted with a mechanical ventilation system, capable of being controlled from outside the space. What is the minimum number of atmosphere changes per hour, based on the total volume of the space, that such a system must deliver?
Правильный ответ:
Not less than 30 charges per hour.Ваш ответ:
If the ventilation is permanent, it shall deliver at least 20 changes per hour; if it involves part recirculation, then it shall deliver at least 30 changes per hour.