UNE-EN ISO 13935-2:2026

This document specifies methods for the determination of seam maximum force of sewn seams when the forceis applied perpendicularly to the seam. This document describes the method known as the grab test (3.2).NOTE ISO 13935-1:2014[3] describes the method known as the strip test. For informative references see theBibliography.The method is mainly applicable to woven textile fabrics, including fabrics which exhibit stretchcharacteristics imparted by the presence of an elastomeric fibre, mechanical or chemical treatment. It can beapplicable to fabrics produced by other techniques. It is normally not applicable to geotextiles, nonwovens,coated fabrics, textile-glass woven fabrics and fabrics made from carbon fibres or polyolefin tape yarns (seeBibliography).The sewn fabrics can be obtained from previously sewn articles or can be prepared from fabric samples, asagreed by the parties interested in the results.This method is applicable to straight seams only and not to curved seams.The method is restricted to the use of constant rate of extension (CRE) testing machines.