标准摘要
[中文适用范围]： 指定测量方法，以便可以重复地获得胶片/处理系统，并可以与其他系统进行比较。 描述直接暴露于 X 射线的胶片的感光测定程序。 第二版取消并取代了第一版（1981 年）。 [外文原描述]： Specifies measuring methods so that the film/process system can be obtained reproducibly and can also be compared with those of other systems. Describes sensitometric procedures for films exposed directly to X-rays. This second edition cancels and replaces the first edition (1981).
英文名称Photography — Direct-exposing medical and dental radiographic film/process systems — Determination of ISO speed and ISO average gradient