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This European Specification specifies four methods for determining the performance of roofs to external fire exposure. The four methods assess the performance of roofs under the following conditions:
Test 1 - with burning brands
Test 2 - with burning brands and wind
Test 3 - with burning brands, wind and supplementary radiant heat
Test 4 – with two stages incorporating burning brands, wind and supplementary radiant heat
This Test 2 equipment consists of:
Air channels equipped with fans and a lid
This air channel is made of 1.0 mm thick steel plates. The wall channel section placed between the lower and the upper air channels is made of steel plates and non-combustible fibre reinforced calcium silicate boards with a thickness of 11 ± 2 mm and a density of 680 ± 50 kg/m3.
Crib ignition stand
The crib ignition stand is protected from air currents consists of a support of the wood crib and a line burner with five vertically oriented burner tubes. The line burner is mounted centrally on the support with the axes of the burner tubes and the lowest edge of the crib in the same plane.
Wood crib
8 pcs (in which 6 pcs are nailed to the remaining 2 pcs at a distance of 8 mm between each of them) of 10 x 10 x 100 mm pine wood containing no knots make the source of fire.
Constant temperature drying oven of 105 ± 5°C
Desiccator
Balance
Timer
Air velocity measuring devices
Flow meter
