GB/T 9716-1988
ActiveInformation processing--Unrecorded 12.7mm (0.5in)wide magnetic tape for information interchange-32ftpmm(800 ftpi)NRZ1,126ftpmm(3200ftpi)phase encoded and 356ftpmm(9042ftpi) NRZ1
信息处理 信息交换用9磁道,12.7mm(0.5in)未记录磁带 32ftpmm(800ftpi)NRZ1制,126ftpmm(3200ftpi)调相制和356ftpmm(9042ftpi)NRZ1制