ANSI INCITS 58 : 1977 : R2017

1. Scope
2. General Requirements
   2.1 Operation, Storage, and Test Environment
   2.2 Environmental Stability
   2.3 Materials
   2.4 Disk Pack Assembly
3. Physical Requirements
   3.1 Dimensions
   3.2 Moment of Inertia
   3.3 Balance
   3.4 Maximum Speed
   3.5 Locking Pull
   3.6 Air Feed Openings
   3.7 Air Filter
   3.8 Air Flow
   3.9 Thermal Time Constant
   3.10 Electrical Ground
   3.11 Physical Characteristics of Magnetic Surfaces
   3.12 Shock and Vibration
   3.13 Maximum Weight
4. Magnetic Requirements
   4.1 General Geometry: Surface and Heads
   4.2 Surface Geometry
   4.3 Track Geometry
   4.4 Identification System
   4.5 Standard Reference Surfaces
   4.6 Test Conditions
   4.7 Functional Testing
Appendix A - Suggested Measurement Techniques
  A1 Introduction
  A2 Measurement
  A3 Magnetic Measurements

Describes the general, physical, and magnetic requirements for the physical interchange of magnetic eleven-disk packs for use in electronic data processing systems.