The EN 397 standard specifies physical and performance requirements, methods of test and marking requirements for industrial safety helmets. Industrial safety helmets are intended primarily to provide protection to the wearer against falling objects and consequential brain injury and skull fracture. The main characteristics that distinguish these protective devices are: the capability of absorbing blows, puncture resistance, resistance to rain and sunlight, resistance to chemical agents and flammability, dielectric properties.
The requirements are as follows:
Impact resistance: force transmitted to the head ≤5.0 kN with impact energy 49 J (a mass of 5 kg falling from a height of 1 metre).
Penetration resistance: no penetration with impact energy 29 J (a mass of 3 kg falling from a height of 1 metre).
Flame resistance: no damage after exposure to the flame for 5 seconds;
Resistance to low temperature (-20 °C or -30 °C): impact and penetration resistance at a temperature of -20 °C or -30 °C. Optional requirement.
Resistance to high temperature (+150 °C): impact and penetration resistance at a temperature of 150 °C (optional requirement).
Electrical properties (440 V AC): leakage current ≤1.2 mA at a voltage of 1,200 V AC (optional requirement).
Lateral deformation (LD) ≤40 mm and residual deformation ≤15 mm, when subject to a progressive load up to 430 N. Optional requirement.
Molten metal splashes (MM): no damage after contact with 150 g of molten iron (optional requirement).
EN 397
Products for this standard
ROCKFIRE HELMET
MD1222
ABS 901 HELMET
MD1223
+
COSMOS HELMET
MD1211
+
ABS 900 HELMET
MD1215
EVEREST HELMET
MD1216
+
COSMOS HELMET W/TEXTILE HARNESS
MD1219
+
V-GARD HELMET
MD1413
+
V-GARD 500 HELMET
MD1414
+
JETSTREAM® BUILDERS' KIT PSL
FA2303
POWERCAP® INFINITY® KIT
FA2326
BASIC FORESTIER SM901N+EP167+VM85M+H867
FB1134
CLIMBING PROTECTION KIT
FD1711
VERTEX HELMET YELLOW
FD2144
VERTEX HELMET WHITE
FD2145
VERTEX HELMET RED
FD2146
VERTEX HELMET ORANGE
FD2147
VERTEX HELMET BLACK
FD2148
VERTEX HELMET BLUE
FD2149
STRATO HELMET WHITE
FD2159
STRATO HELMET RED
FD2160
STRATO HELMET BLACK
FD2161
STRATO HELMET YELLOW
FD2162