ISO 6025:2000

Published (Edition 3, 2000)

This standard was last reviewed and confirmed in 2023. Therefore this version remains current.

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Abstract

1.1 This International Standard specifies basic technical characteristics for the international exchange of

analogue photographic sound test films intended for checking, adjusting and measuring motion-picture projector

sound systems and sound reproducing channels of motion-picture installations for monophonic or stereophonic

reproduction.

1.2 This International Standard specifies types and technical characteristics of test films made on 35 mm and

16 mm motion-picture films.

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

a) focusing and azimuth of the scanning beam,

b) scanning beam width and its position relative to the reference edge of the film,

c) uniformity of the scanning beam illumination,

d) level output balance of several motion-picture projectors,

e) frequency response of the sound reproduction channel, and

f) non-uniformity of film travel.

This standard contributes to the following Sustainable Development Goals

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