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IS0
I N T ERN AT I ON A L O RG AN IZ AT I ON FOR STA N DA RD I ZAT ION
IS0 RECOMMENDATION
R 686
35 mm FILMSTRIPS
DIMENSIONS AND FORMATS
1st EDITION
March 1968
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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 686,35 mm Fümsîrips -Dimensions and formats, was drawn up
by Technical Committee ISO/TC 42, Photognrphy, the Secretariat of which is held by the United
States of America Standards Institute (USASI).
Work on this question by the Technical Committee began in 1961 and led, in 1965, to the
adoption of a Draft IS0 Recommendation.
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In September 1965, this Draft IS0 Recommendation (No. 878) was circulated to all the IS0
Member Bodies for enquiry. It was approved] subject to a few modifications of an editorial nature, by
the following Member Bodies :
Argentina Israel Switzerland
Australia Italy United Kingdom
Belgium Japan U.S.A.
Canada Poland
Czechoslovakia South Africa,
France Rep. of
GerIIlaIly Sweden
One Member Body opposed the approval of the Draft :
U.S.S.R.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0 Council
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which decided, in March 1968, to accept it as an IS0 RECOMMËNDATÏON
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ISO/R 686-1968 (E)
IS0 Recommendation R 686 March 1968
35 mm FILMSTRIPS
DIMENSIONS AND FORMATS
1. SCOPE
This IS0 Recommendation defines dimensions, general layout and material for 35 mm perforated
filmstrips carrying transparent pictures for filmstrip projection. It does not cover details regarding
mask opening of the filmstrip projector.
2. DESIGN OF FILMSTRIP
2.1 Width and perforation
The width and perforation of the filmstrip should meet the dimensional requirements specified
for perforation Types 1, 2 and 3 of IS0 Recommendation R 491, Cutting and perforating
dimensions for 35 mm motion-picture raw stock film.
2.2 Leader and trailer
Preceding the t
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