EN ISO 11612 ABCDEF HEAT AND FLAME PROTECTION

Protective clothing that complies with EN ISO 11612 protects the user from contact with heat and flames. Two-piece protective clothing must be worn together and protect the entire body to achieve the right level of protection. The CE labels inside the garment contains information about the necessary garment combination and which code letters that the garment is certified for.

The standard has the following parts:

A: Limited flame spread

If the garment is exposed to an open flame for 10 seconds, it should go out within 2 seconds and no hole should occur.

• A1 - Surface ignition
• A2 - Edge ignition

B: Protection against convective heat (heat passage)

Specifies how long the garment can stop the heat passing through the garment when exposed to an open flame.

• B1: 4-10 sec
• B2: 10-20 sec
• B3: 20 sec or more

C: Protection against radiant heat

Specifies how long the garment can stop the heat passing through the garment when exposed to radiant heat.

• C1: 7-20 sec
• C2: 20-50 sec
• C3: 50-95 sec
• C4: 95 sec or more

D: Protection against molten aluminum splash

Specifies how much molten aluminium splash the garment can handle before holes are formed.

• D1: 100-200 g
• D2: 200-350 g
• D3: 350 g or more 

E: Protection against molten iron splash

Specifies how much molten iron splash the garment can handle before holes are formed.

• E1: 60-120 g
• E2: 120-200 g
• E3: 200 g or more

F: Protection against contact heat

Specifies how long the garment can block the heat generated by direct contact with hot substances and objects.

• F1: 5-10 sec
• F2: 10-15 sec
• F3: 15 sec or more