EN 13823 – SBI – Fire reaction tests for building products
EN 13823 – SBI – “Fire reaction tests for building products – Building products excluding flooring exposed to thermal attack by a single burning item”
This European Standard provides a testing method used to determine the fire reaction classification for building products (excluding flooring) listed in Table 1 of Decision 2000/147/EC. The purpose of this standard is to assess the behaviour of these products in terms of fire reaction.
The SBI test aims to determine classification parameters such as:
- FIGRA (Fire Growth Rate) – indicator of the rate of fire growth,
- SMOGRA (Smoke Growth Rate) – indicator of the rate of smoke production,
- TSP (Total Smoke Production) – total smoke released from the test sample during the first 600 s period of exposure to the main flame of a burner,
- THR600s (Total Heat Release) – total heat released from the sample during the first 600s of exposure to the main burner flame,
- LFS (Lateral Flame Spread) – lateral flame spread along the length of the test sample.
These parameters, as required by EN 13501 standard, are essential for determining the product properties for Euroclasses A2, A2L, B, BL, C, CL, D, and DL. The SBI test can be conducted independently for technological research or to determine fundamental performance characteristics. However, a comprehensive fire reaction classification based on the class should also include tests such as EN ISO 11925-2, EN ISO 1182, or EN ISO 1716.