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This International Standard provides recommendations concerning the storage conditions, storage facilities, handling and inspection for all processed safety photographic films in roll, strip, aperture-card or sheet format, regardless of size. This International Standard is applicable to extended-term and medium-term storage of photographic film. This International Standard is applicable to photographic film records intended as storage copies, which are not in frequent use. It does not apply to “work” or “use” copies (see Annex A). This International Standard, while intended for materials that are properly processed, is also of considerable value in prolonging the useful life of photographic film whose processing conditions are unknown, or which has been toned or retouched, or has markings with materials of uncertain or unknown stability. This International Standard is applicable only to safety photographic film (see ISO 18906). Nitrate-base films are not covered by this International Standard. NOTE Nitrate-base films are hazardous (see Reference [8]). They require special storage considerations (see Reference [4]), but the environmental conditions specified in this International Standard are applicable. The storage of photographic prints and photographic plates requires different considerations. They are not covered in this International Standard, but are described respectively in ISO 18920 and ISO 18918.