| 3. | Use roller to roll one of end of tape in order to adhere to tescified load on lower end . measure the distance of slide after a certain time . if drop it is time to evaluate tape ' s retention 将胶带之一端以滚轮辗压,使之粘于试验板,一端悬吊规定之重量,经一定之时间后,量测胶带下滑之距离,如中途掉落,则记录时间,用以评定胶着保持力 |