Safety helmets are an important part of your personal protective equipment, with EN397 you can ensure that the hard hat you are purchasing offers reliable protection for your workplace. For a safety helmet to conform too EN397 it must be tested in a range of areas.

Impact & Shock Absorption

EN397 helmets are intended to protect a static wearer from falling hazards. Helmets are tested using a 5Kg striker dropped from a height of 1 meter, the transmitted force cannot exceed 5kN. These tests are carried out of several helmet samples of each type to make sure that the helmet will offer protection in all conditions including high temperature, low temperature and water immersion.


These safety helmets are also tested again penetration to ensure they offer sufficient protection again pointed or sharp objects. Tested in a similar way too the impact & shock rating. Also as with the impact testing this is performed of several helmets to test in a range of conditions.

Design Requirements

Helmets that conform too EN397 also must have certain design requirements typically ensuring sufficient coverage provided by the helmet & ensuring that field of vision is not impaired by the helmet design.

Anchorage provided by chinstraps are also an important factor of any safety helmet design. Safety helmets can only offer protection when retained on the head. EN397 requires that the helmet is secured with anchorage points with a chinstrap with a minimum width of 10mm. The strength of the chinstraps are also tested.