Doors and frames for internal and external use that have been shown to provide effective barriers to the passage of fire for the time stated. They do not however comply for the appropriate periods with all the requirements for fire resistance specified in BS 476:Part 8 (hence the term ‘fire-check’). Materials, construction.
BS 459-3:1951
Original price was: $264.16.$132.00Current price is: $132.00.
Specification for wooden doors-Fire-check flush doors and wood and metal frames (half-hour and one-hour types)
BSI Group , 10/31/1951
