ISO/TS 17958:2013描述了一种使用恒伸长率拉伸试验机测定纸和纸板断裂韧性的方法。ISO/TS 17958:2013还描述了具有指定标准纸幅几何形状的缺口纸幅的断裂强度和断裂应变的测定。该信息用于对纸张材料的断裂性能进行排序。 ISO/TS 17958:2013适用于所有类型的纸和纸板，但某些特殊等级除外，例如皱纹纸和其他在拉伸试验期间显著偏离呈现单调下降的切向刚度的纸材料。 ISO/TS 17958:2013不适用于瓦楞纤维板。

ISO/TS 17958:2013 describes a method for determining the fracture toughness of paper and board using a tensile testing machine operated with a constant rate of elongation. ISO/TS 17958:2013 also describes the determination of the fracture strength and fracture strain of a notched paper web with an assigned standard web geometry. This information is used to rank the fracture properties of paper materials. ISO/TS 17958:2013 is applicable to all kinds of paper and paperboard, except for certain special grades, such as creped paper and other paper materials that significantly deviate from exhibiting monotonically decreasing tangential stiffness during tensile testing. ISO/TS 17958:2013 does not apply to corrugated fibreboard.