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INFORMATION PROCESSING - DATA INTERCHANGE ON 90 MM (3.5 IN.) FLEXIBLE DISK CARTRIDGES USING MODIFIED FREQUENCY MODULATION AT 7958 FTPRAD, 5.3 TPMM (135 TPI) ON BOTH SIDES - PART 1: DIMENSIONAL, PHYSICAL AND MAGNETIC CHARACTERISTICS
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Withdrawn date: 01-10-1989
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Published date: 12-01-2013
Publisher: Comite Europeen de Normalisation
0 Introduction1 Scope and field of application2 Conformance3 References4 Definitions 4.1 recording disk 4.2 hub 4.3 shutter 4.4 liner 4.5 case 4.6 Master Standard Reference Flexible Disk Cartridge 4.7 Secondary Standard Reference Flexible Disk Cartridge 4.8 Typical Field 4.9 Reference Field 4.10 Test Recording Current 4.11 Standard Reference Amplitudes (SRAs) 4.12 Average Signal Amplitude 4.13 in-contact 4.14 side 4.15 direction of rotation 4.16 index 4.17 formatting 4.18 initialization5 General description 5.1 Figures 5.2 Main elements 5.3 Description6 General requirements 6.1 Environment and transportation 6.2 Materials7 Dimensional characteristics 7.1 Case 7.2 Liner 7.3 Disk 7.4 Hub 7.5 Optional handling notches 7.6 Interface between cartridge and drive 7.7 Compliance8 Physical characteristics 8.1 Inflammability 8.2 Coefficient of linear thermal expansion of the disk 8.3 Coefficient of linear hygroscopic expansion of the disk 8.4 Torque9 Magnetic characteristics 9.1 Recording area 9.2 Track geometry 9.3 Functional testingAnnexesA Test for complianceB Measurement of light transmittanceC Method for measuring the effective track widthD Cartridge distortion test gaugeE Method for measuring peak shift
Defines the dimensional, physical and magnetic characteristics of the cartridge, so as to provide physical interchangeability between data processing systems.
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