...
Photographs: Don't freeze photos unless you have no other alternative, because freezing may damage the surfaces of the photos. Try to arrange for emergency photo recovery service, such as that provided by Eastman Kodak
Emergency Photo Recovery Service-- we plan on Document Reprocessors, who says:
- Keep all damaged materials cold and wet. Never let them dry out.
- Rinse off heavy mud or particulate dirt deposits with clean, cold water.
- Place wet items and their ID in a plastic bag, seal tightly and keep cold.
Microfilm and microfiche: Submerge microfilm in cold, running water and send to a reprocessing center within 72 hours to have rewashed and dried; keep wet. You can air dry fiche.
...