Heat & flame

EN ISO 11612


Protective clothing – clothing to protect against heat and flame

Physicial requirements
Dimensional change due to cleaning ISO 5077 Max 3%
Tensile strenght ISO 13934-1 300N
Tear strenght ISO 13937-1 15N

 

Limited flame spread* (ISO 15025)
Surface ignition A1 No flaming to the top or edge
No hole formation
No flaming or molten debris
Afterflame ≤ 2 seconds 
Afterglow ≤ 2 seconds
Edge ignition A2 No flaming to the top or edge
No flaming or molten debris
Afterflame ≤ 2 seconds 
Afterglow ≤ 2 seconds

 

Special requirements* Niveau 1 Niveau 2 Niveau 3
Convective heat 
(ISO 9151)
B
≥ 4s
< 10s

≥ 10s
< 20s
≥ 20s
Radiant heat 
(ISO 6942 B)
C
≥ 7s
< 20s

≥ 20s
< 50s

≥ 50s
< 95s
Molten aluminium 
(ISO 9185)
D
≥ 100g 
> 200g

≥ 200g
< 350g
≥ 350g
Molten iron 
(ISO 9185)
E
≥ 60g
< 120g

≥ 120g
< 200g
≥ 200g
Contact heat
(ISO 12127 at 250 °C)
F
≥ 5s
< 10s

≥ 10s
< 15s
≥ 15s

 

Optional tests
Resistance to water penetration (Code W) According to EN 343
Protection against effects of electric arc According to EN IEC 61482-1-2
Protection against effects of electric arc ISO 13506 (full garment test)

 
* Pretreatment:

All tests, with the exception of innocuousness, in EN ISO 11612 are carried out after a cleaning pretreatment. The amount of cleaning cycles and cleaning method is set by the manufacturer based on standardized cleaning standards.

The limited flame spread (letter code A) is also carried out after the maximum amount of cleaning cycles, set by the manufacturer based on standardized cleaning standards. 

Cleaning methods
ISO 6330  Domestic laundry
ISO 15797 Industrial laundry
ISO 3175-1 Dry cleaning
TenCate Protective Fabrics - Industrial Safety