PROTECTIVE CLOTHING - HEAT & FLAME EN ISO 11612

EN ISO 11612:2008 - Protective Clothing to Protect against Heat and Flame 

EN ISO 11612:2008 is the standard for protective clothing which protects against heat and flame. 

Users for these garments include those who work in oil & gas, welding & allied processes, mining, petroleum and many other industries.

EN ISO 11612:2008 is applicable to garments with limited flame spread properties and where the user can be exposed to radiant or convective or contact heat or to molten metal splashes. 

The following parameters are used: 

Code A1 – Limited flame spread to outer surface 

Code A2 – Limited flame spread to edge 

Code B – Convective heat - 3 Levels

Code C – Radiant heat - 4 Levels

Code D – Molten aluminium splash - 3 Levels

Code E – Molten iron splash - 3 levels

Code F – Contact heat - 3 Levels

Flame Spread Test : A flame is held against the fabric for ten seconds. After it is removed the fabric should not continue to burn. There should be no hole formation, melting or molten debris.

Tensile Strength Test : The fabric must be able to withstand a minimum force of 300 newtons while being stretched or grabbed.

Tear Resistance Test : The fabric must be able to withstand a minimum force of 10 newtons before it will tear. 

Heat Resistance Test : The fabric is placed in an oven at 180oC and must not ignite melt or shrink within the first 5 minutes in order to comply with the standard.