Designed to protect workers from brief contact with flames and at least one type of heat. The heat can be in the form of convective heat, radiant heat, conductive heat, molten metal spatter, or a combination of these.
All garments must be marked with the codes A1 and/or A2 and one more code B, C, D, E or F:
- Code A : behavior to propagation of the flame.
- Code B : resistance to convective heat.
- Code C : resistance to radiant heat.
- Code D : resistance to molten aluminum splashes.
- Code E : resistance to molten iron splashes.
- Code F : resistance to contact heat.