BS 2782-1 Method 150D-1976 塑料试验方法.第1部分:热性能.试验方法150D:薄膜与薄片冷裂温度

标准号：BS 2782-1 Method 150D-1976
中文标准名称：塑料试验方法.第1部分:热性能.试验方法150D:薄膜与薄片冷裂温度
英文标准名称：Methods of testing plastics - Thermal properties - Cold crack temperature of film and thin sheeting
标准类型：G31
发布日期：1976/9/30 12:00:00
实施日期：1976/9/30 12:00:00
中国标准分类号：G31
国际标准分类号：83.080.01
适用范围：This method determines a characteristic temperature at which cracks are produced in film or thin sheeting, as a guide to its low-temperature performance. The cold crack temperature should not be considered identical with the low-temperature limit for materials in actual service, since this is influenced by the conditions of service in each case. The maximum thickness depends on the stiffness of the material and the ability of the hammer to flatten the loop of material at the test temperature, but is about 1 mm for flexible sheeting. It is known that unsatisfactory results are sometimes obtained with thin polished plasticized PVC sheeting and PVC sheeting having a low plasticizer content.