ISO International Standard

This International Standard specifies the recorded characteristic for magnetic Sound records on 35 mm motion-picture film excluding striped release prints when used at the nominal Speed of 24 frames (45,6 cm or 18 in) per second or 25 frames (47,5 cm or 18.7 in) per second.

NOTE – This International Standard and relevant portions of Recommendation No. 265-2 of the CCIR have substantially the same technical content.