EN 397 Industrial Helmets - Impact - Shock Absorption

Head Protection Equipment Tests

EN 397 Industrial Helmets - Impact - Shock Absorption

EUROLAB laboratory provides testing and compliance services within the scope of EN 397 standard. The EN 397 standard describes the shock absorption properties and test methods of helmets. Most specifications for protective helmets contain a set of requirements for the design of a helmet in addition to specific performance requirements.

EN 397 Industrial Helmets - Impact - Shock Absorption

These generally cover the coverage provided by the helmet as well as the field of view it provides to the wearer. It also covers ergonomics and safety-based requirements such as the space between the head and the helmet, especially in industrial helmets.

Helmets are only protective when held on the head, so a chin strap is required to ensure that they are held in typical operating conditions. The EN 397 standard requires the helmet to be equipped with a chin strap, ie fixing points. These chin straps should have a minimum width of 10 mm and be attached to the helmet when not stretched.

In the method of measuring the chin strap abutment force described in the EN 397 standard, the helmet is mounted to a suitable size head shape and the chin strap is attached to an artificial chin. A tensile force is then applied to the artificial jaw.

Helmets are personal protective equipment designed to protect the wearer from various dangers. In the applied impact tests, a fixed head form is used with a falling mass striker. The tested helmet is placed in an appropriately sized and sized headform mounted on a rigid base and the striker is dropped onto the helmet from a certain height.

The force transmitted from the helmet is measured and evaluated using the load cell under the head form. Shock absorption tests performed in this way are similarly performed to ensure that industrial helmets provide adequate protection against sharp or pointed objects.

The strength of the strap anchors should be sufficient for any attached chin strap to hold the helmet on the head, but not so great that the strap is a choking hazard. In the method of measuring chin strap attachment strength specified in EN 397, the helmet is mounted on an appropriately sized head shape and the chin strap is threaded around an artificial chin. A tensile force is then applied to the artificial jaw at a rate of 20N/min until the artificial jaw is released only due to failure of the anchors. The standard requires that the force at which this occurs should not be less than 150 N and not more than 250 N.

EUROLAB, with its more than 25 years of experience, state-of-the-art accredited laboratories and expert team, helps you get precise and fast results. Do not hesitate to contact our laboratory for your testing and certification requests.

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