BS ISO 7331:2020 pdf download.Ski-poles for alpine and touring skiing — Requirements and test methods.
6.3 Test sampling The three longest and the three shortest poles from each group shall be submitted to the laboratory. In addition, three poles of 1 200 mm length l T from testing group A, and three poles of 1 000 mm length l T from testing group B shall be submitted to the laboratory. One long pole and one short pole shall be selected for the tests to be carried out in accordance with 6.4 to 6.13. If one test sample fails these tests, the tests shall be repeated with two further test poles which shall both pass the repeated tests. For adjustable touring ski-poles, three samples shall be tested. Adjustment according to the testing requirements to the minimum intended length/maximum intended length. All samples shall pass the test.
6.4 Total length
6.4.1 Requirement
The total length l T shall not vary from the given length by more than ±10 mm. For adjustable touring ski-poles, variation of total length to ±15 mm is allowed. Furthermore, the lengths of one pair of ski- poles shall not differ by more than 7 mm.
6.4.2 Testing
Determine lengths of all test samples indicated in 6.3.
6.5 Outward design
6.5.1 Requirement
Sharp design (except the tip) and rough surfaces, which can cause injury, shall be avoided.
6.5.2 Testing
Check visually.
6.6 Anti-catching design
6.6.1 Requirement
The ski-pole shall be designed to limit the strain that can be transmitted to the wrist and arm of the skier, should the pole get caught during skiing. This requirement can be met by a design according to 6.9.3 or 6.12.4, or by a strapless grip.
6.6.2 Testing
Test according to 6.9.3 or 6.12.4 or carry out a visual and functional test.
6.7 Release mechanism
6.7.1 Function
If so equipped, a release mechanism shall be manufactured so that it functions correctly in
environmental conditions encountered during skiing.
6.8.2 Impact area
6.8.2.1 Requirement
The impact area, A G , shall be:
— group A: ≥10 cm 2 ;
— group B: ≥10 cm 2 ;
— group C: ≥7 cm 2 .
6.8.2.2 Testing
Designate the largest section, taken from the outer contour at a level between 0 mm and 10 mm from the upper edge of the grip and at a slope of between 0° and 10° to the perpendicular; this shall be the impact area.
In the case of deformable surfaces of the grip, this measurement can be carried out at a compressive force of 400 N.
BS ISO 7331 pdf download.