The EN ISO 11612 checks different aspects of the fabric, which basically are fire and flames behaviour and physical strengths. In the flame and flames behaviour, the regulation checks the radiant heat, contact heat, convective heat, heat resistance (air) and limited flame spread.
In this post, we will focus in the basic requirement to pass the “limited flame spread”, which is defined by the regulation EN 15025.This regulation consists in 2 parts, A1 (horizontal flame) and A2 (vertical flame).
The A2 is optional. So, what is the A1 test about?
The test consists in apply an horizontal gas flame (propane) during 10 seconds (where all the measures, distances, materials and gas flow are given by the regulation) and check the behaviour of the fabric