1.1本国际标准规定了一种指定曝光不足的电影负片和反转型胶片的方法，这些胶片需要强制或推式显影。 1.2本国际标准未规定用于实现强制开发结果的程序。 注-正在制定一项关于过度曝光的电影胶片的国际标准。

1.1 This International Standard specifies a method of designating underexposed motion-picture negative and reversal type film requiring forced or push-processing development. 1.2 This International Standard does not specify the procedure used in achieving a forced development result. NOTE - An International Standard dealing with overexposed motionpicture film is being prepared.