Fire

One of the most important tests for reaction to fire is testing according to PN-EN 13823 “Reaction to fire tests of construction products. Construction products, excluding flooring, subjected to the thermal action of a single burning item“. In short, the test is called SBI from the English name of the single burning item. This test is carried out in a closed room – a test chamber in the shape of a square measuring 3 by 3 meters and a height of 2.4 meters with an exhaust hood on the top to collect gases produced during the test. This room is equipped with a special trolley with the test element on. The trolley is placed in such a way that the test element is located under the hood collecting combustion products. The SBI test is a medium-scale test and samples prepared for testing should reflect the actual use and attachment of the product as accurately as possible and in accordance with PN-EN 13823. The fire scenario used in this test method consist in the burning item standing in the corner of the room. Samples prepared for testing consist of two wings: the first is 1 m long and 1.5 m high, the second second is 0.5 m wide and 1.5 m high, arranged perpendicular to each other so that they form a corner. Unipanels System panels have been tested in the laboratory of the Fire Research Institute of the Institute of Building Technology and have received the following classifications