ANSI X3.52

Description / Abstract: This standard specifies the general, physical, and magnetic requirements for interchangeability of the single-disk cartridge (front loading) as required to achieve unrecorded cartridge interchange between disk storage drives and associated information processing systems. The single-disk cartridge (front loading), with two recording surfaces, is of the type intended specifically for use with digital recording and reproducing equipments employing access mechanisms capable of positioning to 200 usable data tracks on each surface. The requirements for three additional track areas on each recording surface are identified for use as alternates in case of difficulty in reading or recording on any usable data tracks.

The general, physical, and magnetic requirements for the single-disk cartridge specified in this standard include:

(1) Operating, storage, and test environments for the cartridge

(2) Physical dimensions of the cartridge and its components

(3) Materials and testing specifications where necessary

(4) Magnetic recording and reproducing geometry, including track locations

(5) Magnetic surface and track quality test specifications and requirements

(6) Supporting diagrams, measurement methods, and an appendix to provide clarity and completeness of the standard