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This standard specifies a test method for determining the flex resistance of uppers and linings irrespective of the material in order to assess the suitability for the end use. The test pieces are cut from shoe upper leather or a material intended for shoe manufacture, folded and fastened in the testing device. The test replicates the damage caused by inward buckling of the upper leather material; however, it does not readily replicate damage caused by outward buckling. Dry tests, wet tests and low temperature tests are performed. The committee NA 062-10-11 AA "Schuhe" ("Footwear") at DIN Standards Committee Materials Testing (NMP) is responsible for this standard.
This document replaces DIN EN 13512:2002-04 .