BS EN 893:2019 pdf free.Mountaineering equipment一Crampons一Safety requirements and test methods.
Measure the slippage of the crampon on the ice when the force F has been applied for at least 1 mm. Then apply the minimum force Fin the backward direction and measure the slippage of the crampon on the ice when the force F has been applied for at least 1 mm. 5.4.3 Bending strength test on spikes Make a groove in each spike, parallel to the foot base and at the distance from the tip shown in Figure 3 a). Mount the frame of the test specimen, without deformation of the frame, as close as possible to the jaw, as shown in Figure 3 b) to d). For front spikes apply the test load perpendicular to the foot base of the crampon. For downward spikes apply the test load parallel to the foot base of the crampon. During the tests the load shall be applied in the initial direction ± 5°. The load bar shall be adequately shaped in order to not slip out of the groove. If it is not possible to mount the foot base without deformation, cut out each spike, in agreement with the manufacturer, together with the appropriate part of the frame in a manner which does not affect the strength of the material and the strength of the base of the spike. Make a groove in each spike parallel to the frame and at the distance from the tip shown in Figure 3. Mount the spike of the test specimen, as close as possible to the jaw, as shown in Figure 3. During the tests the load shall be applied in the initial direction ± 50 The load bar shall be adequately shaped in order to not slip out of the groove.Apply a force, as specified in Table 1, to the test sample in accordance with Figure 3 b) or c) or d), as appropriate. Hold the force for (60 ± 5) s and measure the maximum deformation. The rate of loading shall be (200 ± 50) mm/mm. After removing the force, measure the permanent deformation. If spikes are adjustable, test the spikes at the maximum extension. 5.4.4 Transverse strength test on bails Mount the test sample on a ski-boot in accordance with Iso 9523:2015 as described in the manufacturer’s instructions and information. Using a rate of loading of (200 ± 50) mm/mm, apply a force of (1 000 ± 25) N on the bails with two tape slings in accordance with EN 565:2017 with a width of (15 ± 2) mm as shown in Figure 5, and hold the force for (60 ± 5) s.BS EN 893 pdf download.