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*Std. Title
.21-1946, 8mm Double-Perforated
Film-Usage in Camera .22-1947, 8mm DoublePerforated
Film-Usage in Projector .23-1941, Projection Reels for 8mm
Film .27-1947, Determining Transmission
Density of Film
.28-1946, Projection Rooms and
Lenses for Theaters .31-1946, Definition for Safety Film
.33-1941, Nomenclature for Electrical Filters
.35-1947, 16-Tooth 35mm Projector
Sprocket .36-1947, Dimensions for 35mm
Positive Film
.37-1944, Raw Stock Cores for 35mm
Film .38-1952, Raw Stock Cores for 16mm
film .39-1944, Screen Brightness for 35mm
Motion Pictures
.41-1946, Sound Records and Scanning Area 16mni Sound Prints
.42-1946, 16mm Sound Focusing Test Film
.43-1946, 16mm 3000-Cycle Flutter Test Film
.44.1945, 16mm Multi-Frequency Test Film
.45-1946, 16mm 400-Cycle Signal Level Test Film
.46-1946, 1 6mm Positive Aperture and Image Size for Positive Prints From 35mm Negatives
.47-1946, Negative Aperture Image
Size 16mm Duplicate Negatives from 35mm Positive Prints
.48-1946, Printer Aperture Contact Printing 16mm Positive From 16mm Negatives
Status
Revision, purely editorial in nature, proposed the 16mm and 8mm Committee, approved by the Standards Committee, and is now being reviewed by ASA Sectional Committee PH22. Requires revision by 16mm and 8mm Committee.
Reaffirmed by the Laboratory Practice Committee, and now being reviewed by the Standards Committee
Requires revision by Film Projection Practice Committee.
Requires revision. Is being studied by ASA Sectional Committee PHI.
Approval withdrawn by ASA October 1952.^ Withdrawal notice published November 1952! Journal.
Now being reviewed by the Film Projection Practice Committee.
Film Dimensions Committee now voting on proposed revision. Only change is method of indicating dimension G.
Reaffirmed by Film Dimensions Committee and now being reviewed by Standards Committee. Revision was approved October 1952. Published in November 1952 Journal.
Revision proposed by Screen Brightness Committee, approved within SMPTE, published for trial and comment in May 1952 Journal, and is now being reviewed by the Photographic Standards Correlating Committee of ASA. Revision is being drafted by the Laboratory Practice Committee.
Sound Committee is now voting on proposed revision.
Reaffirmed by the Sound Committee and is now being reviewed by the Standards Committee.
Same as .42 above. Same as .27 above.
Same as .27 above.
Same as .27 above.
* All these standards had the Z22 designation. This is now being replaced by PH22 to precede the decimal point in the number of each standard.
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