BSI - BS 476-3
Fire Tests on Building Materials and Structures Part 3: External Fire Exposure Roof Test
|Publication Date:||30 September 1975|
|ICS Code (Fire-resistance of building materials and elements):||13.220.50|
Designed to measure the ability of a representative section of a roof, rooflight, dome light or similar components to resist penetration by fire, when its external surface is exposed to heat radiation and flame. Also measures the extent of surface ignition.