Limited Flame Spread

This European Norm is often used for lower-level Flame Resistant protective garments such as Socks, Rainwear and Hi-Visibility Waistcoats. It is divided into 3 classes, where Index 3 is the highest.

1. The flame does not spread, there is no flaming debris, nor afterglow, a hole may be formed.
2. The flame does not spread, there is no flaming debris, nor afterglow, no hole formation.
3. The flame does not spread, there are no flaming debris, nor afterglow, no hole formation, the after-flame times of each individual specimen is less than 2 seconds.

It is important to note that Index 3 garments should be worn in conjunction with EN ISO 11612 garments, and Index 1 garments should not be worn next to the skin.