(ii)Every vessel while loading, discharging or handling explosive or cased dangerous petroleum shall bank all fires and store them up only when explosives or cased dangerous petroleum are not being loaded, discharged or handled and only when hatches containing explosives or cased dangerous petroleum are completely closed. All ventilators to the stock-hold shall be carefully attended and properly trimmed and wind-sails shall be rigged to the stock-hold to prevent any pocket of gas accumulating in vessels which have any cased dangerous petroleum on board.
