Historical
IEC 60297-2 Ed. 1.0 b:1982
Dimensions of mechanical structures of the 482.6 mm (19 in) series. Part 2: Cabinets and pitches of rack structures
Covers the basic dimensions of free-standing cabinets and fixed rack structures used in 482.6 mm (19 in) rack and panel electronic equipment practice.
International Electrotechnical Commission [iec]