A survey of the care handling and treatment of 16mm motion picture film. - Page 53 |
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For storage periods up to: 2 months 6 months 12 months
Keep films below: 75°F 60°F 50°F
For certain special films such as some high speed
black and white films and some color films or where longer
storage periods are desired, still lower temperatures are
recommended, for example, a temperature of 0°F. In this w a y <
maximum quality in even the more critical products can be
maintained for longer periods of time, often well beyond the '
film's expiration date.
Film can be stored safely in any suitable refrigerator
provided that the film is sealed in a vapor tight package or
container. For specially sensitive films, or for prolonged ,
storage of film, a deep freeze unit operating at 0°F to -10°F
is recommended.
Water in the film does not crystalize at these extremely
low temperatures because the small amount of moisture
found in the emulsion and gelatin is molecularly absorbed
within the celluloid.• Film has been successfully stored at
temperatures below -100°F. No detrimental effect has ever
been found, provided the film was protected from the penetration
of moisture vapor from outside the package. It makes
no difference whether the film is cooled slowly I or is quickly
frozen in dry ice, or how low a temperature Is used.
Moisture must not be allowed to condense on photo-graphic
film or injury may re suit. Because moisture from the
Object Description
Description
| Title | A survey of the care handling and treatment of 16mm motion picture film. - Page 53 |
| Repository email | cisadmin@lib.usc.edu |
| Full text | For storage periods up to: 2 months 6 months 12 months Keep films below: 75°F 60°F 50°F For certain special films such as some high speed black and white films and some color films or where longer storage periods are desired, still lower temperatures are recommended, for example, a temperature of 0°F. In this w a y < maximum quality in even the more critical products can be maintained for longer periods of time, often well beyond the ' film's expiration date. Film can be stored safely in any suitable refrigerator provided that the film is sealed in a vapor tight package or container. For specially sensitive films, or for prolonged , storage of film, a deep freeze unit operating at 0°F to -10°F is recommended. Water in the film does not crystalize at these extremely low temperatures because the small amount of moisture found in the emulsion and gelatin is molecularly absorbed within the celluloid.• Film has been successfully stored at temperatures below -100°F. No detrimental effect has ever been found, provided the film was protected from the penetration of moisture vapor from outside the package. It makes no difference whether the film is cooled slowly I or is quickly frozen in dry ice, or how low a temperature Is used. Moisture must not be allowed to condense on photo-graphic film or injury may re suit. Because moisture from the |
