標準號：ANSI INCITS40-1993
中文標準名稱：信息系統.信息交換用未記錄磁帶(9磁道800 CPI, NRZI; 1600 CPI, PE 和 6250 CPI, GCR)
英文標準名稱：Information Systems - Unrecorded Magnetic Tape for Information Interchange (9-track 800 CPI, NRZI; 1600 CPI, PE; and 6250 CPI, GCR)
標準類型：L64
發布日期：1993/7/19 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：L64
國際標準分類號：35.220.22
適用范圍：This standard provides the information necessary to enable mechanical and magnetic interchangeability for reels of 1/2-inch-wide unrecorded magnetic tape between information processing systems, communication systems, and associated equipment utilizing American National Standard for Information systems - Coded character sets - 7-bit american national standard code for information interchange (7-bit ASCII), ANSI X3.4-1986, and amendments thereto. This standard deals solely with magnetic tape for digital recording and supports and complements American National Standards on recorded magnetic tape for information interchange.