BS ISO 4834:1997

This standard BS ISO 4834:1997 Cinematography. Magnetic sound test films excluding striped release prints. Basic technical characteristics is classified in these ICS categories:

• 37.060.20 Motion picture films. Cartridges

This International Standard specifies basic technical characteristics for the magnetic sound test films for checking, adjusting and measuring sound reproducing channels of dubbing motion-picture installations.

It also specifies types and technical characteristics of magnetic test films made on 35 mm, 17,5 mm and 16 mm motion-picture films.

This International Standard includes test films intended for the checking, adjusting and measuring of

1. inclination angle (azimuth) of the magnetic head gaps;

2. output level balance of multi-channel systems;

3. frequency response of the sound reproduction channel;

4. non-uniformity of film velocity (flutter).