INCITS 171-1989(R1995)

INCITS 171-1989(R1995) One and Two-Sided, High Density, Unformatted, 90-mm (3.5 in), 5,3 tpmm (135-tpi), Flexible Disk Cartridge for 15 916 bpr Use - General, Physical and Magnetic Requirements (formerly ANSI X3.171-1989(R1995))

standard by InterNational Committee for Information Technology Standards (formerly NCITS), 01/01/1989