CAN/CGSB 186.19-94/ 9529/2:1989
CAN/CGSB 186.19-94/ISO 9529/2:1989
Information Processing Systems - Data Interchange on 90 mm (3.5 in) Flexible Disk Cartridges Using Modified Frequency Modulation Recording at 15 916 ftprad, on 80 Tracks on Each Side - Part 1: Dimensional, Physical and Magnetic Characteristics
standard published 04/01/1994 by Canadian General Standards Board