This standard specifies the requirements for a helical data storage (HDS) tape cartridge to be used for information interchange among information-processing systems, communication systems, and associated equipment utilizing a standard code for information interchange as agreed upon by the interchange parties. Such a cartridge comprises two parts: - a case to provide protection from contaminants and handling, utilize loading/unloading of the cartridge by a drive; - a magnetic tape of 12.65 mm (0.498 in) nominal width held inside the cartridge on a single supply reel.