BS 5131-3.5:1978

This standard BS 5131-3.5:1978 Methods of test for footwear and footwear materials. Uppers, textiles and threads is classified in these ICS categories:

• 61.060 Footwear

This Section describes a method for assessing the amount of wrinkling of the grain of upper leather, or the top surface of a synthetic material, when it is folded inwards to a standard curvature. This method is applicable to whole skins, sheet material, cut components and made-up shoes.

NOTE Section 3.5 is based on SATRA¹⁾ Method PM36.

Method for assessing the amount of wrinkling of the grain of upper leather, or the top surface of a synthetic material, when it is folded inwards to a standard curvature.