watertight risk marking for 44 wt doors and 26 hatches in red zone with red equilateral triangle 25 cm length of each side, other side marking at 345 location with 25mm lettring inside box as per name, trunck marking at 345 location with direction arrows depicting flow of air and lettring ac supply and location marking of ventilation fan, watertight control marking of wt hatches and doors for 13 decks contining with letters x y z size 40mm inside a 5 ench circle with white background, gastight control marking of gt doors with letters a m r and hatches with 40mm lettering using fluorescent signal red colour and white background inside a 5 ench circle, safety marking that is cleansing popst escape route casualty stretcher emergency scuttles first aid post suction in 24 in numbers passageways and 47 in numbers lobbies