BS 2782-6 Method 643A-1976 塑料的试验方法.第6部分:尺寸特性.试验方法643A:收缩包装用薄膜热缩变

标准号：BS 2782-6 Method 643A-1976
中文标准名称：塑料的试验方法.第6部分:尺寸特性.试验方法643A:收缩包装用薄膜热缩变
英文标准名称：Methods of testing plastics - Dimensional properties - Shrinkage on heating of film intended for shrink wrapping applications
标准类型：G31
发布日期：1976/12/15 12:00:00
实施日期：1976/12/15 12:00:00
中国标准分类号：G31
国际标准分类号：83.140.10
适用范围：This method describes a procedure for determining the extent to which plastics films shrink when heated in an unrestrained state. For films of different materials, appropriate test temperatures are specified. It should be appreciated that for some materials, the shrinkage obtained in industrial use may differ from the values obtained by this test method. The shrinkage of film as determined by this method is usually measured in two directions at right angles to each other in the plane of the film.