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