New IEEE Standard - Superseded. This International Standard IEC/IEEE 62704-3 describes the concepts, techniques,benchmark phone models, validation procedures, uncertainties and limitations of the finitedifference time domain (FDTD) technique when used for determining the peak spatial-averagespecific absorption rate (SAR) in standardized head and body phantoms exposed to theelectromagnetic fields generated by wireless communication devices, in particular mobilephones, in the frequency range from 30 MHz to 6 GHz. It recommends and provides guidanceon the numerical modeling of mobile phones and benchmark results to verif y the generalapproach for the numerical simulations of such devices. It defines acceptable modelingrequirements, guidance on meshing and test positions of the mobile phone and the phantommodels. This document will not recommend specific SAR limits since these are found in other documents, e.g., IEEE C95.1-2005[1] and ICNIRP[2].