This International Standard specifies a test method for determining the water-tightness under dynamic pressure of doorsets and windows, assembled for normal use and installed as in practice. This International Standard is applicable to areas subject to severe weather, e.g. that are heavily weatherbeaten, stricken by driving rain and wind, including typhoons, hurricanes, cyclones and other severe climate. This International Standard does not apply to the joints between the door or window frame and the building construction.