scope:

This International Standard specifies two test methods fordetermining the seam strength of uppers, lining or insocks,irrespective of the material, in order to assess the suitabilityfor the end use. These methods are as follows. ? Method A: Needleperforations. For determining the force required to pull a row ofneedles through an upper material, in a direction perpendicular tothe row. ? Method B: Stitched seams. For determining the breakingstrength of stitched seams in shoe upper and lining materials. Thismethod is applicable to seams cut from shoes or made up to simulatefootwear constructions.