Kodak D-31 Uživatelský manuál

Micrographic QualityD-31Storage and Preservation of Microfilms

D-31 June 2002 7Humidity ControlControl of relative humidity is required for preservation of permanent records.Air ConditioningProperly controlled a

8 D-31 June 2002 HumidificationHumidification is not necessary or desirable unless the prevailing relative humidity is under 15%—under 30% for polye

D-31 June 2002 9The conditions under which microfilm is stored have been found to play an important role in the development of microscopic blemishes

10 D-31 June 2002 Composition of Enclosure MaterialsPaperPaper should be made from rag, bleached sulfite or bleached kraft pulp with an alpha-cellul

D-31 June 2002 11Processing for PermanenceSilver-Gelatin FilmsProcessing is one of the most important factors affecting the potential permanence of

12 D-31 June 2002 SqueegeesIt is important to use an adequate squeegee where the film leaves the water wash and enters the drying section. Otherwise

D-31 June 2002 13Processing of Other Film TypesThermally Processed Silver (TPS)This film should be processed in accordance with the manufacturers’ r

14 D-31 June 2002 Time-Capsule StorageOnly silver-gelatin films conforming to ANSI/PIMA IT9.1-19982 or ISO 18901-1999 should be used for time capsul

D-31 June 2002 15InspectionThe potential life of photographic records depends largely on atmospheric conditions—temperature, humidity, cleanliness—a

16 D-31 June 2002 Table 2: Storage Life of Microfilms NOTES:(1) Expressed as thiosulfate ion.(2) Specific limits have not been set—the recommended w

D-31 June 2002 iContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Definitions . . .

D-31 June 2002 17Summary of Requirements for Storage and Preservation of Records on Kodak MicrofilmStorage FacilitiesThe type of storage vault, safe

18 D-31 June 2002 References and Bibliography1. American National Standard: “Technical Report—Glossary of Document Technologies,” ANSI/AIIM TR2-1998

EASTMAN KODAK COMPANYDocument ImagingRochester, New York 14650www.kodak.com/go/docimagingKodak, Eastman, Estar, and Prostar are trademarks of Eastman

ii D-31 June 2002 Processing of Other Film Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Thermally Processed Silver (TPS) . .

D-31 June 2002 1IntroductionPhotographic film remains an important documentary material. The increasing quantity and value of microfilm records used

2 D-31 June 2002 Emulsion layer(s)—image or image-forming layer(s) of photographic films, papers, and plates.Film base—the plastic support for the e

D-31 June 2002 3Scanner—a device that electro-optically converts a document into a series of pixels by detecting and measuring the intensity of ligh

4 D-31 June 2002 Storage VaultsThe highest degree of protection for a large number of records is afforded by a fireproof storage vault or record roo

D-31 June 2002 5Water ProtectionFilm records should be protected from possible water damage, such as from leaks, fire-sprinkler discharge, and flood

6 D-31 June 2002 Very low humidities have, in the past, caused film to be brittle. However, film of current manufacture has not been found to exhibi