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Microfilm doesn't use cellulose acetate, and is stable for centuries with minor storage requirements (room temperature, low humidity)-- the same that are requir
by Scaevolus 3y ago
Microfilm doesn't use cellulose acetate, and is stable for centuries with minor storage requirements (room temperature, low humidity)-- the same that are required by books.
- woodruffw 3y agoModern microfilm doesn't; what about the kind that's holding newspaper archives from the 1920s?
- dredmorbius 3y agoIt seems that cellulose nitrate film stock was phased out by the 1950s: <https://www.nedcc.org/free-resources/preservation-leaflets/6.-reformatting/6.1-microfilm-and-microfiche https://www.nedcc.org/free-resources/preservation-leaflets/6...> How widely it was used prior to that time, and what filmstock selection practices specific institutions followed I don't know, though I suspect these may have varied. As for current polyester filmstock: Black-and-white polyester film has a life expectancy of 500+ years under proper storage conditions. (From the same source.)