ST 164:2002 : For Motion-Picture Film (8-mm Type S) — Magnetic Audio Record — Position, Dimensions and Reproducing Speed
The Society of Motion Picture and Television Engineers eBooks · 2002
(1.1) This standard specifies the position, dimensions, and reproducing speed of the magnetic audio record on 8-mm type S motion-picture film having a nominal 0.027-in (0.69-mm) width magnetic stripe. (1.2) This standard also specifies the longitudinal picture-audio displacement on the film.