How often should stored silver master negative film be inspected?
A one percent random sample of the total master permanent record microfilm inventory should be inspected every twelve to eighteen months. The film should be inspected for damage, defects, and deterioration. This information should be noted and corrected to prevent further loss to the rest of the collection. For more information, see ANSI/AIIM MS45-1990, Recommended Practice for Inspection of Stored Silver-Gelatin Microforms for Evidence of Deterioration, and see State Archives Technical Publication #11, Introduction to Micrographics, pg.7.
