GB/T 6550-1986
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 6550-1986
Information processing -- 9-Track,127mm wide magnetic tape for information interchange recorded at 63rpmm, phase encoded 信息处理交换用9磁道12.7毫米宽63行/毫米调相制记录磁带
Issued Date:1986-03-28
Implemented Date:1987-04-01
Issued by:
The Standardization Administration of the People's Republic of China