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See Chinese contents: GB 28380-2012 GB 28380-2012: Minimum allowable values of energy efficiency and energy grades for microcomputers
This standard specifies the minimum allowable values of energy efficiency, the evaluating values of energy conservation, test methods, and inspection rules for desktop microcomputers, all-in-one desktop microcomputers with display functions (referred to as all-in-one computers), and portable computers (the above are collectively referred to as microcomputers). This standard applies to general-purpose microcomputers, but not to workstations and industrial computers. This standard does not apply to microcomputers with two or more independent graphic display units, nor does it apply to microcomputers with a power supply rated power greater than 750W. This standard does not apply to portable computers and all-in-one computers with a display diagonal of less than 0.2946 m (11.6 inches).
