This international standard specifies methods of measurement for the power consumption of TV receivers, VCRs, Set Top Boxes (STBs), audio equipment and multi-function equipment for consumer use. Moreover the different modes of operation which are relevant for the power consumption are defined. The methods of measurement are only applicable for equipment which can be connected to the mains. The measuring conditions in this standard represent the normal use of the equipment and may differ from specific conditions, for example as specified in safety standards.