1.1 This method is for evaluating the resistance to slippage of weft yarns on
warp yarns, or warp yarns on weft yarns, at the seam of a woven fabric. 1.2 The method is particularly applicable to apparel and furnishing fabrics
but is not intended for use on heavy industrial fabrics. 1.3 The method specifies two seams, one intended for use with apparel fabrics
and the other for use with upholstery fabrics. 1.4 Resistance to seam slippage is the force per 25 mm width of seamed
specimen required to produce elongations of 3 mm and 6 mm respectively, in
excess of the elongation of the fabric under the same force.