MIL-M-38748A, MILITARY SPECIFICATION, MICROFICHE, FOR ENGINEERING/TECHNICAL DATA, REPORTS, STUDIES AND RELATED DATA, REQUIREMENTS FOR (1 DEC 1970)., This specification covers the detail requirements for the filming of engineering and technical data, reports, studies and related information, preparation of microfiche and reproduction copies thereof by the Department of Defense or by its contractors. Microfiche produced in accordance with the requirements of this specification shall be of the size cited herein