ISO 24265:2020 pdf download

ISO 24265:2020 pdf download

ISO 24265:2020 pdf download.Footwear — Test methods for uppers — Resistance to rubbing using a rubber strip
1 Scope
This document specifies a method for the determination of the rubbing resistance of leather and synthetic materials using rubber. The method aims to establish testing conditions that are similar to those of the practical use of footwear subjected to drastic stress, as is the case of hiking or children’s footwear, where the upper of one of the shoes is expected to rub with the sole of the other. This method is applicable to all types of leather and synthetic materials intended for shoe uppers.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour
ISO 18454, Footwear — Standard atmospheres for conditioning and testing of footwear and components
for footwear
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Principle
The shoe upper material is drastically rubbed with the abrading rubber element under a given pressure for a given number of ‘to-and-fro’ motions (cycles).
5 Apparatus
The test apparatus suitable for this test shall incorporate the following elements:
5.1 A carriage with the following:
a) horizontal, completely planar metal platform;
b) holder for fastening the material to be tested leaving 80 mm freely exposed;
c) device that allows the test-piece to be extended at least 10 % in the direction of rubbing.
6.2 Wet rubbing resistance
Cut a test piece measuring approximately 120 mm × 70 mm for 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 (5.7). Produce a vacuum of 5 kPa (5.8) and hold it for 2 min. 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 min. 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.