The air is to be renewed in the various spaces approximately as follows, based on the gross capacity of the compartments, and on the above pressure: Quarters on orlop deck, in from ten to twelve minutes. Water closets, in from four to six minutes. Storerooms, in from eight to twelve minutes. Magazines, in from six to eight minutes. Engine rooms and steering compartments, in about two minutes. Ice-machine room, in about three minutes. Dynamo rooms, in about three-fourths of a minute. |