中華人民共和國國家標準
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 17960-2000
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--GB type 303 信息技術 數據交換用90 mm改進調頻制記錄的位密度爲31 831磁通翻轉/弧度、每面80磁道的軟磁盤 GB 303型
Issued Date:2000-01-03
Implemented Date:2000-08-01
Issued by:
The Standardization Administration of the People's Republic of China