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UDC 778.5
IS0
F O R S TA N DARD 1 ZATl O N
O RG A N I Z AT 1 ON
I N T ER N AT I ON A L
IS0 RECOMMENDATION
R 490
SINGLE MAGNETIC SOUND STRIPE
ON 16 rnrn MOTION-PICTURE FILM
PERFORATED ALONG ONE EDGE
1st EDITION
July 1966
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the national standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
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BRIEF HISTORY
The IS0 Recommendation R 490, Single Magnetic Sound Stripe on 16 mm Motion-picture
Film Perforated Along One Edge, was drawn up by Technical Committee ISO/TC 36, Cinemato-
graphy, the Secretariat of which is held by the American Standards Association, Inc. (ASA).
Work on this question by the Technical Committee began in 1955, on the basis of the
American Standard PH 22.87-1953 and, as regards technical content, in accordance with Recom-
mendation No. 265 of the International Radio Consultative Committee (CCIR) and the
International Electrotechnical Commission (IEC) Report, Publication 142. This work led,
L
in 1961, to the adoption of a Draft IS0 Recommendation.
In November 1963, this Draft IS0 Recommendation (No. 635) was circulated to all the
IS0 Member Bodies for enquiry. It was approved by the following Member Bodies:
Belgium France New Zealand
Romania
Brazil Germany
Greece Spain
Bulgaria
Canada
...