標準號：ISO/IEC 15731-1998
中文標準名稱：信息技術.信息交換用12.65mm寬盒式磁帶.螺旋掃描記錄.DTF-1格式
英文標準名稱：Information technology - 12,65 mm wide magnetic tape cassette for information interchange - Helical scan recording - DTF-1 format
標準類型：L72
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：L72
國際標準分類號：35.220.23
適用范圍：This International Standard specifies the physical and magnetic characteristics of magnetic tape cassettes, using magnetic tape 12,65 mm wide so as to provide physical interchange of such cassettes between drives. It also specifies the quality of the recorded signals, the recording method and the recorded format, called Digital Tape Format-1 (DTF-1), thereby allowing data interchange between drives by means of such cassettes. The format supports variable length Logical Records, high speed search, and the use of a registered algorithm for data compression. This International Standard specifies two sizes of cassette. For the purposes of this International Standard the larger cassette is referred to as Type L, and the smaller as Type S. Together with a standard for volume and file structure, e.g. ISO 1001, this International Standard provides for full data interchange between data processing systems.