• ANSI INCITS 171 : 1989 : R2000

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    ONE- AND TWO-SIDED, HIGH-DENSITY, UNFORMATTED, 90-MM (3.5 IN), 5,3-TPMM (135-TPI) FLEXIBLE DISK CARTRIDGE FOR 15916 BPR USE - GENERAL, PHYSICAL, AND MAGNETIC REQUIREMENTS

    Available format(s):  Hardcopy, PDF

    Superseded date:  23-04-2024

    Language(s):  English

    Published date:  01-01-2005

    Publisher:  Information Technology Industry Council

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

    1 Scope, Purpose, and Application
      1.1 Scope
      1.2 Purpose
      1.3 Application
      1.4 Conformance
    2 Referenced and Related Standards
      2.1 Referenced American National Standards
      2.2 Other Referenced Standards
      2.3 Related American National Standard
    3 Definitions
    4 General Requirements
      4.1 Environment
      4.2 Materials
      4.3 Cartridge Assembly
    5 Physical Requirements
      5.1 Dimensions and Tolerances
      5.2 Torque
      5.3 Physical Properties of Disk
      5.4 Magnetic Coating Resistivity
      5.5 Flammability
      5.6 Toxicity
    6 Test Track Requirements (Track and Recording Information)
      6.1 Number
      6.2 Width
      6.3 Track Locations
      6.4 Physical Track Identification
      6.5 Direction of Rotation
    7 Magnetic Characteristics
      7.1 Data Surfaces
      7.2 Signal Quality
    Figures
    Figure 1 Disk Case - Side 0
    Figure 2 Disk Case - Side 1
    Figure 3 Case without Shutter - Upper Part
    Figure 4 Side 1 View and Hub Detail
    Figure 5 Disk Operating Plane
    Figure 6 Datum Planes
    Figure 7 Support Details
    Figure 8 Recording Offset Angle
    Table 1 Dimensions for Figures 1, 2, and 3
    Appendixes
    Appendix A Abrasivity Evaluation
      A1. Abrasivity
      A2. Comparative Disk
      A3. Wear Test Disk
      A4. Wear Revolution
      A5. Test Procedure
    Appendix B Compliance Test and Gauge for Cartridge
      B1. Purpose
      B2. Reference Zones
      B3. Load Force
      B4. Hub Shaft
      B5. Compliance
    Appendix C Roughness
    Appendix D Wear Resistance
    Appendix E Peak Shift Measurement
      E1. Measurement Conditions
      E2. Definition
      E3. Test Circuit
      E4. Timing Diagram
    Figures
    Figure E1 Peak Shift Measurement Circuit
    Figure E2 Timing Diagram
    Appendix F Dimensions
    Figure F1 Location of Drive Physical Index Pulse
    Appendix G Drop-Through Gauge
    Figure G1 Drop-Through Gauge
    Appendix H Running Torque with Head(s) Loaded

    Abstract - (Show below) - (Hide below)

    Describes the general, physical, and magnetic requirements for interchangeability of the one- and two-sided, high density, 90 mm (3.5 in) (nominal) flexible disk cartridge for 15916 bits-per-radian (bpr) use as required to achieve unformatted disk cartridge interchange among disk drives using 80 tracks per side and associated information processing systems.

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

    Committee X3B8
    Document Type Standard
    Product Note Reconfirmed 2000
    Publisher Information Technology Industry Council
    Status Superseded
    Superseded By

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

    IEEE 268-1992 American National Standard for Metric Practice
    ISO 9293:1987 Information processing Volume and file structure of flexible disk cartridges for information interchange
    ISO 7665:1983 Information processing File structure and labelling of flexible disk cartridges for information interchange
    ISO 370:1975 Toleranced dimensions Conversion from inches into millimetres and vice versa
    ASTM D 257 : 2014 : REDLINE Standard Test Methods for DC Resistance or Conductance of Insulating Materials
    ANSI INCITS 137 : 1988 INFORMATION TECHNOLOGY - ONE- AND TWO-SIDED, UNFORMATTED, 90-MM (3.5-IN) 5,3-TPMM (135-TPI), FLEXIBLE DISK CARTRIDGE FOR 7958 BPR USE - GENERAL, PHYSICAL AND MAGNETIC REQUIREMENTS
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