Sewn Seam Strength : The maximum resistance to rupture of the junction formed by stitching together two or more planar structures, such as textile fabrics
NFPA 1977 Standard on Protective Clothing and Equipment for Wildland Fire Fighting, 2005 ed. http://www.nfpa.org/assets/files/aboutthecodes/197 7/1977_f2010_rop_ballot.pdf, (Std: Prot Clothing and Equip for Wildland Fr Fight - Amer) {431 NFC}