标准摘要
[中文适用范围]： 规定了能量的测定方法，该能量导致厚度小于 1 毫米的塑料薄膜和片材在指定高度的自由落体冲击的指定条件下失效，这将导致 50% 的测试样本失效。 描述了两种方法。 方法A采用直径为38mm的半球形头的飞镖，从0.66m的高度落下，方法B采用直径为50mm的半球形头的飞镖，从1.50m的高度落下。 测量方法为阶梯法。 [外文原描述]： Specifies methods for the determination of the energy, that causes plastics films and sheet less than 1 mm in thickness to fail under specified conditions of impact of a free falling dart from a specified height, tha would result in failure of 50 % of the specimes tested. Two methods are described. Method A employs a dart with 38 mm diameter hemispherical head, dropped from a height of 0,66 m, and method B employs a dart with a 50 mm diameter hemispherical head dropped from a height of 1,50 m. The measurement technique is the stairecase method.
英文名称Plastics film and sheeting — Determination of impact resistance by the free-falling dart method — Part 1: Staircase methods