International Organization for Standardization (ISO)
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ISO 1793:2005
Scope
This standard specifies the dimensions and characteristics of film holders for 16 mm cinema projectors (up to and including 610 m capacity: 38 cm type).
ISO 1793:2005 history
2005ISO 1793:2005 Cinematography - Reels for 16 mm motion-picture projectors (up to and including 610 m capacity: 38 cm size) - Dimensions
1975ISO 1793:1975 Cinematography; Reels for 16 mm motion-picture projectors (up to and including 120 m capacity : 18 cm size); Dimensions