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Home » Impact Protection »
Shock Absorption Testing
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The European standard EN 1177 (March 2002) defines requirements and test procedures for shock-absorbent surfacing
systems. These regulations specify use of shock-absorbent surfaces when expected fall heights exceed 60 cm. |
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Impact protection slabs are tested and certified in accordance with EN 1177 (March 2002), the valid standard in the EU today. This standard evaluates shock absorption performance by the HIC (Head Injury Criterion) test procedure.
The HIC test method rates fall impact by measurement of multiaxial deceleration. Kinetic energy at impact is another parameter of critical importance as shown by experimental findings. In this procedure, a standardized test head equipped with highly sensitive acceleration sensors undergoes free fall and impact on the surface evaluated. The test head is 160 mm in diameter and has a weight of 4.6 kg.
The recorded test data and measurements are processed for calculation of HIC values. HIC values of 1000 and above indicate impact correlating to serious head injuries.
The test is run on four interconnecting slabs arranged in a square configuration. Nine individual trials are run, determining critical fall heights at various points on the surface tested including slab centres, slab seams and the crossing point of the two slab seams. The minimum fall height of all 9 trials causing an HIC of 1000 is taken for use in the calculations. The test can be carried out on installed slabs while in place.
The result of the calculations is the permissible fall height of the system tested in accordance with EN 1177.
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Gummiwerk KRAIBURG RELASTEC GmbH
Fuchsbergerstrasse 4
D-29410 Salzwedel
Fon: +49-(0)8683-701-145
Fax: +49-(0)8683-701-4145 |
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