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  • BS EN 21864:1994

    Current The latest, up-to-date edition.

    Information technology. Unrecorded 12,7 mm (0,5 in) wide magnetic tape for information interchange. 32 ftpmm (800 ftpi) NRZ1, 126 ftpmm (3 200 ftpi) phase encoded and 356 ftpmm (9 042 ftpi) NRZ1

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-06-1994

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    1 Scope and field of application
    2 References
    3 Definitions
    4 Environment
    5 Characteristics of tape
    6 Reel
    Annex - Reels conforming to the first edition of this
            International Standard

    Abstract - (Show below) - (Hide below)

    Describes the characteristics of 12,7mm wide magnetic tape with reel, to enable magnetic and mechanical interchangeability between information processing systems. Applies solely to magnetic tape for digital recording using the NRZ1 method of recording at 32 and 356 ftpmm or the phase-encoded method of recording at 126 ftpmm in which the direction of magnetization is nominally longitudinal.

    General Product Information - (Show below) - (Hide below)

    Committee ICT/1
    Development Note Supersedes 91/63785 DC. Also numbered as ISO/IEC 1864. (09/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO/IEC 3788:1990 Information processing — 9-track, 12,7 mm (0,5 in) wide magnetic tape for information interchange using phase encoding at 126 ftpmm (3 200 ftpi), 63 cpmm (1 600 cpi)
    ISO 209-1:1989 Wrought aluminium and aluminium alloys Chemical composition and forms of products Part 1: Chemical composition
    ISO 6098:1984 Information processing Self-loading cartridges for 12,7 mm (0.5 in) wide magnetic tape
    ISO 5652:1984 Information processing 9-Track, 12,7 mm (0.5 in) wide magnetic tape for information interchange Format and recording, using group coding at 246 cpmm (6 250 cpi)
    ISO 468:1982 Surface roughness — Parameters, their values and general rules for specifying requirements
    ISO/IEC 1863:1990 Information processing 9-track, 12,7 mm (0,5 in) wide magnetic tape for information interchange using NRZ1 at 32 ftpmm (800 ftpi) 32 cpmm (800 cpi)
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