VI-Rules for Classification and Construction Additional Rules and Guidelines Part 7-Guidelines for the Performance of Type Approvals Chapter 1-Procedure
Information technology - Data interchange on 90 mm flexible disk cartridges using modified frequency modulation recording at 31 831 ftprad on 80 tracks on each side - ISO Type 303
Information technology - 3,81 mm wide magnetic tape cartridge for information interchange - Helical scan recording - DDS-DC format using 60 m and 90 m length tapes