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Status : Active
Standard Type : Main
Document No : ISO 3639:1981
Document Year : 1981
Pages : 5
Edition : 1
Section Volume : Cinematography (ISO/TC 36.)
This International Standard specifies the dimensions for 8 mm Type S motion-picture projection reels/spools of 75 to 312 mm diameter (with the exception of the 75 mm Type No. 7) that are interchangeable on all types of reel-to-reel projection equipment. NOTE - The No. 7 reel (75 mm), although temporarily recognized, will be superseded by that specified in ISO 6033. lt is recommended that new projection equipment and reel/spool manufacturing capacity should comply with the requirements of ISO 6033.