SPECIFICATION FOR FIRE RESISTANCE DOORSETS : PART 3: METHODS FOR DETERMINATION OF THE FIRE RESISTANCE - TYPE OF DOORSETS
This Part of MS 1073 describes procedures for determining the fire resistance of doorsets when
subjected to the heating and pressure conditions specified in MS 1073 : Part 2. This Part is applicable to fully insulated, partially insulated and uninsulated vertical doorsets and shutter assemblies (except fire dampers incorporated in ducts).