INCITS/ISO/IEC 14169 : 1995 : R2002

Foreword
Introduction
Section 1 - General
1 Scope
2 Conformance
   2.1 Flexible disk cartridge
   2.2 Generating systems
   2.3 Receiving systems
3 Normative references
4 Definitions
   4.1 Average Signal Amplitude
   4.2 case
   4.3 Data Sector
   4.4 Data Track
   4.5 direction of rotation
   4.6 disk
   4.7 Error Correcting Code (ECC)
   4.8 Error Detecting Code (EDC)
   4.9 flux transition frequency
   4.10 hub
   4.11 index
   4.12 Inner Zone
   4.13 input bit
   4.14 Line of Access of the head
   4.15 liner
   4.16 Master Standard Reference Flexible Disk Cartridge
   4.17 Outer Zone
   4.18 peak value
   4.19 Primary Identification hole
   4.20 Reference Field
   4.21 Secondary Identification hole
   4.22 Secondary Standard Reference Flexible Disk Cartridge
   4.23 Sector Block
   4.24 sector servo
   4.25 Servo Sector
   4.26 Servo Track
   4.27 shutter
   4.28 Side
   4.29 Standard Reference Amplitude
   4.30 Standard Reference Current
   4.31 Test Recording Current
   4.32 Typical Field
   4.33 write-inhibit hole
5 Conventions and Notations
   5.1 Representation of numbers
   5.2 Names
6 Acronyms
7 General description
   7.1 Drawings
   7.2 Main elements
   7.3 Description
   7.4 Marking of the FDC
Section 2 - Environments, mechanical and physical characteristics
8 General requirements
   8.1 Environment, transportation and safety
   8.2 Materials
9 Dimensional characteristics
   9.1 Case
   9.2 Liner
   9.3 Disk
   9.4 Hub
   9.5 Optional handling notches
   9.6 Interface between cartridge and drive
   9.7 Compliance
10 Physical characteristics
   10.1 Flammability
   10.2 Coefficient of linear thermal expansion of the disk
   10.3 Coefficient of linear hygroscopic expansion of the disk
   10.4 Torque
Section 3 - Requirements for the unrecorded disk
11 Magnetic recording characteristics
   11.1 Recording area
   11.2 Track geometry
   11.3 Functional testing
   11.4 Track quality tests
Section 4 - Requirements for the interchanged disk
12 Recording of Data Tracks
   12.1 Method of recording
   12.2 Tolerances of the track locations
   12.3 Recording offset angle
   12.4 Density of recording
   12.5 Flux transition spacing
   12.6 Average Signal Amplitude
   12.7 Byte
   12.8 Data Sector
   12.9 Cylinder
   12.10 Cylinder number
   12.11 Data capacity of a track
   12.12 Hexadecimal notation
13 Disk layout
   13.1 Layout of a Data Sector
   13.2 Data Tracks
   13.3 Coded representation of data
14 General requirements for recording Servo Tracks
   14.1 Method of recording
   14.2 Servo Tracks
   14.3 Average Signal Amplitude of servo data
   14.4 Displacement due to fluctuations of signal amplitude of
        servo data
15 Layout of the Servo Track
   15.1 Layout of the Servo Sector
16 Relative position of Data Tracks and Servo Tracks
Annexes
Annex A (normative) Cartridge distortion test gauge
Annex B (normative) Measurement of light transmittance
Annex C (normative) Test for compliance
Annex D (normative) Method for measuring the effective
        track width
Annex E (normative) Head and read amplifier for functional
        testing
Annex F (normative) Method of measuring peak shift
Annex G (normative) Method for measuring overwrite
Annex H (normative) Procedure and equipment for measuring
        flux transition spacing
Annex J (normative) Handling defective Data Sectors
Annex K (normative) Method for measuring the eccentricity of
        Servo Tracks
Annex L (normative) Method of measuring the offset between
        Data Tracks and Servo Tracks
Annex M (informative) Torque measurements
Annex N (informative) Data separators for decoding 2-7 RLL
        recording
Annex P (informative) EDC Implementation
Annex Q (informative) ECC Implementation
Annex R (informative) Servo Track recording conditions
Annex S (informative) Method for measuring the displacement
        of the head due to amplitude fluctuations of servo
        data
Annex T (informative) Institute supplying Secondary Standard
        Reference Flexible Disk Cartridges

Specifies the characteristics of 90 mm flexible disk cartridges (FDC) of 21 Mbytes formatted capacity, recorded at 31831 ftprad in the Inner Zone and 47747 ftprad in the Outer Zone with sector servo tracking on 326 data tracks on each side, using 2-7 RLL recording.