The document specifies the nominal sizes and aim dimensions with their cutting tolerances of photographic films in sheets and rolls for general photographic applications.
DIN ISO 1012:2000 history
2000DIN ISO 1012:2000-04 Photography - Film in sheets and rolls for general use - Dimensions (ISO 1012:1998)
2000DIN ISO 1012:2000 Photography - Film in sheets and rolls for general use - Dimensions (ISO 1012:1998)