This International Standard specifies the cutting and perforating dimensions for 16 mm motion-picture and magnetic films with one or two rows of perforations for the following two categories: a) 16 mm motion-picture and magnetic films; b) manufacturer-designated 16 mm professional motion-picture camera films with tighter tolerances. This International Standard applies to safety raw stock film as described in ISO 543.
GSO ISO 69:2016 history
2016GSO ISO 69:2016 Cinematography -- 16 mm motion-picture and magnetic film -- Cutting and perforating dimensions