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In the discussion on scope, the French delegate proposed a new version. Modifications were offered and the following scope was approved for submittal to letter ballot of TC36.
"The committee shall formulate definitions, dimensions, methods of measurement and test, and performance characteristics related to materials and apparatus used in silent and sound motion picture photography, in sound recording and reproduction and in laboratory work, also, standards relating to the installation and characteristics of projection and sound reproduction equipment.
"Collaboration is to be established with all other Technical Committees working on related questions and especially with the Committees ISO/TC 42 — Photography and ISO/TC46 — Documentation."
The previous scope 'is offered for comparison purposes:
"The formulation of definitions, dimensional standards, methods of test, rating and performance characteristics of materials and devices used in silent and sound motion picture photography and in sound recording and processing and reproduction in connection therewith. Collaboration is to be established with other Technical Committees, especially with ISO/TC46 — Documentation, in work on photographic reproduction."
After providing each member nation an opportunity to make a general statement on agenda items 6-11, the chairman appointed Work Group chairmen and the remainder of the sessions were devoted primarily to the detailed considerations of the six Work Groups. The conclusions reached in each Group are presented below.
Dimensions of Raw Stock
It was unanimously agreed to recommend to ISO/TC36 that the secretariat prepare a Draft ISO Proposal for letter ballot action of all members on Cutting
and Perforating Dimensions for 35mm Motion Picture Positive Raw Stock to be based upon the American Standard Z22. 36-1 947 with the changes indicated below.
(1) Dimension A to read
1 -2-70 + 0.000 . , -2C nn + 0.00
1. 378 _ 0.002 inch 35.00 o.os mm
(2) Dimension L to read
18.70 ±0.15 inch 475.00 =b 0.40 mm
(3) Dimension R to read
0.50 millimeter, provided that the secretariat finds that this is the proper way to express correspondence with 0.020 inch.
(4) Dimension G to be expressed as shown in the French Standard NFS 24-003 with the drawing of the type given therein but with the format altered to show lines referring to bottom edges of perforations rather than center lines.
(5) The footnotes in Z22.36-1947 indicated by an asterisk and a dagger, and the appendix, are to be deleted.
(6) Dimension symbol "I" to be changed to "F."
It was also unanimously agreed to recommend to ISO/TC36 that the secretariat prepare two Draft ISO Proposals on Cutting and Perforating Dimensions for 16mm Silent and Sound Motion Picture Negative and Positive Raw Stock, based upon the American Standards Z22.5-1947 and Z22.12-1947, with the following changes:
(1) Dimension A to read
0.628 ± 0.001 inch 15.95 t HI mm
(2) The drawing used to show dimension G in Z22.5 to follow French practice paralleling the 35mm presentation adopted from the French Standard NFS 24-003, Dimensions of 35mm Positive Raw Stock, With Positive Perforations.
(3) Dimension symbol "I" to be changed to "F" in Z22.5.
(4) Omit notes indicated by asterisk and dagger.
352
October 1952 Journal of the SMPTE Vol. 59