The Evaluation of Motion Picture Films by Semimicro Testing

J. E. Gibson, C. G. Weber

Test methods for the evaluation OJ motion-picture film for permanent records require test specimens too large to be removed from certain archival films. To assist those charged with the preservation of such 3lms in determining the quality and checking the condition of them, suitable semimicro methods were developed for acidity, viscosity, and residual hypo content. Specimens as small as 7 mg. in weight, removed from the film with a small hand punch, gave satisfactory results for the purpose.

Print ISSN
Published
1939-01
Content type
Original Research
DOI
10.5594/J12940