Historical
DIN EN 13087-4:2001
Protective helmets - Test methods - Part 4: Retention system effectiveness; English version of DIN EN 13087-4 (Foreign Standard)
The document describes methods of test for protective helmets. The purpose of these tests is to enable assessment of the performance of the helmet as specified in the appropriate helmet standard. It specifies the method of test for retention system effectiveness.
Deutsches Institut für Normung [din]