纸和纸板 - 弯曲抗力的测定 - 第2部分:Taber型测试仪

[中文适用范围]： 本文件规定了使用泰伯型测试仪测量纸和纸板的抗弯强度的程序。 本文件用于确定当以 50 mm 的弯曲长度施加载荷时，使 38 mm 宽的垂直夹紧样本的自由端偏转 15° 所需的弯矩。 对于弯曲 15° 时容易永久变形的板材，可以使用半弯曲角度，即 7.5°。 抗弯强度以弯矩和泰伯型试验机制造商设定的参数来表示。 该方法主要用于高克重的纸张。 注：本文档不包括使用 10 mm 弯曲长度的 Taber 型仪器的低量程版本（参见参考文献 [5]）。 [外文原描述]： This document specifies procedures to measure the bending resistance of paper and paperboard using a Taber-type tester. This document is used to determine the bending moment required to deflect the free end of a 38 mm wide vertically clamped specimen by 15° when the load is applied at a bending length of 50 mm. For boards that tend to be permanently deformed if bent through 15°, the half bending angle, i.e. 7,5°, can be used. The bending resistance is expressed in terms of the bending moment and parameters set by the manufacturer of the Taber-type tester. The method is primarily used for papers with a high grammage. NOTE This document does not cover the low-range version of the Taber-type instrument that uses a bending length of 10 mm (see Reference [5]).