This document, used in conjunction with ISO 834-1, specifies a method for determining the fire resistance of door and shutter assemblies designed primarily for installation within openings incorporated in vertical separating elements, such as — hinged and pivoted doors, — horizontally sliding and vertically sliding doors, including articulated sliding doors and sectional doors, — steel single-skin folding shutters (un-insulated), — other sliding, folding doors, — tilting doors, — rolling shutter doors, — removable panels in walls, — self-closing openable windows. Requirements are included for mechanical pre-conditioning, e.g. "cycling" of door and shutter assemblies prior to the conduct of the fire-resistance test.