scope:

This International Standard specifies the conditions of processing and storage which will give microcopies stored in archives the longest possible preservation. It applies to the preservation of microcopies on film (in roll, sheet, strip or card form, mounted or unmounted, without dimensional limitations), whose support is of cellulose ester or polyester coated with a gelatin layer containing a silver image prepared by the use of a liquid developer, fixer and wash solutions; but excluding processes such as: a) vesicular images; b) diazo images; c) dry-processed silver images; d) diffusion transfer processes. This International Standard applies only to the storage of microcopies made on safety supports in accordance with ISO 543.