標準號：ISO 7765-1-1988
中文標準名稱：塑料膜和板 用自由落體法測定耐沖擊性 第1部分:梯級法
英文標準名稱：Plastics film and sheeting; determination of impact resistance by the free-falling dart method; part 1: staircase methods
標準類型：G31
發布日期：1999/12/31 12:00:00
實施日期：1988/12/15 12:00:00
中國標準分類號：G31
國際標準分類號：83.140.10
適用范圍：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.