This International Standard specifies the screen luminance level and chrominance white point for theatrical projection of 70 mm, 35 mm and 16 mm motion-picture prints at a rate of 24 frames per second. This International Standard can also be applicable to the non-theatrical presentation of 70 mm, 35 mm and 16 mm motion-picture prints intended for projection at 24 frames per second. NOTE Throughout this International Standard, the term "screen" means the screen-picture area appropriate to the film format and projection system in use.
BS ISO 2910:2007 history
2018BS ISO 2910:2018 Cinematography. Screen luminance and chrominance for the projection of film motion pictures
2007BS ISO 2910:2007 Cinematography - Screen luminance and chrominance for the projection of motion pictures