某些类型的缩微胶片载体都配有一张保护片，保护片上附有压敏胶。随着粘合剂的粘结强度随接触时间的增加而增加，保护片的易剥离性随时间而变化。规定的方法是确定保护片和粘合剂的最大和最小附着力，以便于手动或自动移除保护片。

Certains kinds of microfilm carrier are provided with a protection sheet attached by a pressure-sensitive adhesive. As the bond strength of the adhesive increases with contact time, the ease of rremoval of the protection sheet varies with time.Specified is a method of determining the maximum and minimum adhesion of the protection sheet and the adhesive for the purpose of facilitating the manual or automatic removal of the sheet.