AS 3630.1-1988

1 - AS 3630.1-1988 INFORMATION PROCESSING-DATA INTERCHANGE ON 130 mm (5.25 in) FLEXIBLE DISK CARTRIDGES USING MODIFIED...
7 - 0 Introduction
7 - 1 Scope and field of application
7 - 2 Conformance
7 - 3 References
7 - 4 Definitions
7 - 4.1 flexible disk:
7 - 4.2 Reference FlexibleDisk Cartridge:
7 - 4.3 Secondary ReferenceFlexible DiskCartridge:
8 - 4.4 Signal Amplitude Reference Flexible Disk Cartridge:
8 - 4.5 Typical Field:
8 - 4.6 Reference Field:
8 - 4.7 Test Recording Current
8 - 4.8 StandardReferenceAmplitude(SRA):
8 - 4.9 Average Signal Amplitude:
8 - 4.10 in-contact:
8 - 4.11 formatting:
8 - 4.12 initialization:
8 - 4.13 recording area:
8 - 5 General description
8 - 5.1 General figures
8 - 5.2 Main elements
8 - 5.3 Description
8 - 5.4 Optional features
8 - 6 General requirements
8 - 6.1 Environment and transportation
8 - 6.1.1 Testing environment
9 - 6.1.2 Operating environment
9 - 6.1.3 Storage environment
9 - 6.1.4 Transportation
9 - 6.1.5 Handling
9 - 6.2 Materials
9 - 6.2.1 Jacket
9 - 6.2.2 Liner
9 - 6.2.3 Disk
9 - 6.2.4 Envelope
9 - 6.3 Direction of rotation
9 - 7 Dimensional characteristics
10 - 7.1 Jacket
10 - 7.1.1 Form
10 - 7.1.2 Thickness
10 - 7.1.3 Central windows
10 - 7.1.4 Index windows
10 - 7.1.5 Head windows
10 - 7.1.6 Reference edge profile
10 - 7.1.7 Construction of the jacket
10 - 7.1.8 Notches
11 - 7.1.9 Write-enable notch
11 - 7.2 Liner
11 - 7.3 Disk
11 - 7.3.1 Diameter
11 - 7.3.2 Thickness
11 - 7.3.3 Index hole
11 - 7.3.4 Recording area
11 - 7.3.5 Sides
11 - 8 Physical characteristics
11 - 8.1 Flammability
11 - 8.2 Coefficient of linear thermal expansion of the disk
11 - 8.3 Coefficient of linear hygroscopic expansion of the disk
11 - 8.4 Opacity
11 - 8.4.1 Opacity of the jacket
11 - 8.4.2 Opacity of the disk
11 - 8.5 Torque
11 - 8.5.1 Starting torque
11 - 8.5.2 Running torque
12 - 9 Magnetic characteristics
12 - 9.1 Track geometry
12 - 9.1.1 Number of tracks
12 - 9.1.2 Width of tracks
12 - 9.1.3 Track location
12 - 9.1.4 Track number
12 - 9.1.5 Index
12 - 9.2 Functional testing
12 - 9.2.1 Surface tests
13 - 9.2.2 Track quality tests
13 - 9.2.3 Rejection criteria
18 - Annex A - Measurement of the cartridge thickness
18 - A.1 Maximum thickness
19 - A.2 Minimum thickness
20 - Annex B - Measurement of light transmittance
20 - B.0 Introduction
20 - B.1 Description of the measuring equipment
20 - B.2 Measuring method
22 - Annex C - Method for measuring the effective track width

Specifies the characteristics of 130 mm (5.25 in) flexible disk cartridges recorded at 13 262 ftprad, on 80 tracks on each side, so as to provide physical interchangeability between data processing systems. This Standard is identical with ISO 8630-1:1987.

This part of ISO 8630 specifies the dimensional, physical and magnetic characteristics of the cartridge so as to provide physical interchangeability between data processing systems.NOTE - Numeric values in the SI and/or Imperial measurement system in this part of ISO 8630 may have been rounded off and therefore are consistent with, but not exactly equal to, each other. Either system may be used, but the two should be neither intermixed nor re-converted. The original design was made using Imperial units and further developments were made using SI units.