標(biāo)準(zhǔn)號：BS 2782-1 Method 150D-1976
中文標(biāo)準(zhǔn)名稱：塑料試驗方法.第1部分:熱性能.試驗方法150D:薄膜與薄片冷裂溫度
英文標(biāo)準(zhǔn)名稱：Methods of testing plastics - Thermal properties - Cold crack temperature of film and thin sheeting
標(biāo)準(zhǔn)類型：G31
發(fā)布日期：1976/9/30 12:00:00
實(shí)施日期：1976/9/30 12:00:00
中國標(biāo)準(zhǔn)分類號：G31
國際標(biāo)準(zhǔn)分類號：83.080.01
適用范圍：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.