22.214.171.124.3 Hinged-Type Swing Sidewalk Doors
(a) The line of the hinges shall be at right angles to the building wall.
(c) The doors shall be opened by the ascending car and shall be self-closing as the car descends, and shall be kept in the closed position when the car is not at the top landing, except as provided for in (d).
(d) The doors shall be permitted to be held or fastened in the open position when the car is not at the top landing, provided self-closing hinged metal screen panels, which will reject a ball 50 mm (2 in.) in diameter and support a static load of not less than 1135 N (300 lbf) applied on any area 600 mm (24 in.] on a side and not less than 68 kg (150 lb] applied at any point, are installed directly below the watertight sidewalk doors. Screen panels shall be opened and closed automatically by the ascending and descending car and shall always be closed when the car is not at the top landing.
(e) Stops shall be provided to prevent the doors from opening more than 90 deg from their closed position.