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What are the proper environmental conditions for microfilm storage?

April 26, 2017Conditions Environmental microfilm storage

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What are the proper environmental conditions for microfilm storage?

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Climate conditions should not exceed 70° F, with a relative humidity between 20 and 30 percent. Conditions should be kept as constant as possible, fluctuating no more than five degrees within twenty-four hours. Gaseous pollutants need to be filtered from the surrounding air. See State Archives Technical Publication #9, Producing High Quality Microfilm, pg. 5 for more information.