ISO 24265-2020 pdf download

ISO 24265-2020 pdf download.Footwear一Test methods for uppers – Resistance to rubbing using a rubber strip. 5.8 Vacuum pump, capable of evacuating the vessel (5) and achieving 5 kPa (50 mbar, approximately 4OTorr)in4min. 6 Preparation of test pieces Test piece shall be free from sewing thread, decorative part, hook and eyelet. 6.1 Dry rubbing resistance Cut a test piece measuring approximately 120 mm x 70 mm for each one of the sample directions. Condition test pieces in accordance with Iso 18454 for a minimum of 24 h. 6.2 Wet rubbing resistance Cut a test piece measuring approximately 120 mm x 70 mm br each one of the sample directions. To ensure uniform wetting, proceed as follows: Immerse the test-piece in distilled water and place the containing vessel (5.5) in the vacuum desiccator (51). Produce a vacuum of 5 kPa (5) and hold it for 2 mm. Restore normal pressure. Carry out this procedure two more times. Allow the test piece to soak in the water at 23 °C ± 2 °C at atmospheric pressure for 30 mm. Take the test-piece out of the water and remove excess water on its surface with blotting paper, and then start the test. No conditioning is required for the wet test. 7 Procedure 7.1 Dry rubbing resistance 7.1.1 Mount the test-piece (6.1) on the apparatus (Clause 5) and stretch it 10%, or stretch It sufficiently to avoid the formation of creases. 7.1.2 Attach a rubber strip (&4) to the wooden semi-cylinder and hold it adequately. Place the finger with the rubber strip 15 mm from the left long edge. Carry out 10 cycles and lift the finger off the test-piece. 7.1.3 Move the rubber strip a little bit to one side, so a non used part of the strip Is In front of the test piece during the test, or replace the strip with a new one. Place the finger with the rubber strip 15 mm to the right of the previous position. Carry out 20 cycles and lift the finger ofT the test-piece. 7.1.4 Move the rubber strip a little bit to one side, so a non used part of the strip is in front of the test piece during the test, or replace the strip with a new one. Place the finger with the rubber strip 15 mm from the right long edge. Carry out 30 cycles and lift the finger off the...