This European Standard specifies a method for determining the fire resistance of parts of curtain walling incorporating non-fire-resistant infilling product, e.g. glazing. It examines the fire resistance to internal and external fire exposure of: - spandrels, including downstand, upstand or the combinations thereof, - the horizontal linear gap seal and - the fixings used to attach the curtain walling to the floor element. The test method includes an assessment regarding falling parts that are liable to cause personal injury. This European Standard does not cover over-cladding systems and ventilated façade systems on external walls. It does not deal with the reaction to fire behaviour of curtain walling. This standard can also be used to determine fire resistance of parts of curtain walling to increase the field of application when previously tested to EN 1364-3. This standard is intended to be read in conjunction with EN 1363-1 and EN 1363-2. NOTE Annex A gives informative guidance on the principles of testing parts of curtain walling and the test method.