IEC/IEEE 62704的这一部分描述了有限元法（FEM）的概念、技术和局限性，并规定了当用于确定模型或解剖模型中的峰值空间平均比吸收率（psSAR）时，FEM的验证、验证和不确定性评估的模型和程序。它对无线通信设备的建模提出了建议并提供了指导，并为在此类模型中模拟SAR提供了基准数据。 本文件不建议具体的SAR限值，因为这些限值可在其他地方找到（例如:。 g、 在IEEE标准C95中。1[1]1或国际非电离辐射防护委员会（ICNIRP）[2]发布的指南。

This part of IEC/IEEE 62704 describes the concepts, techniques, and limitations of the finite element method (FEM) and specifies models and procedures for verification, validation and uncertainty assessment for the FEM when used for determining the peak spatial-average specific absorption rate (psSAR) in phantoms or anatomical models. It recommends and provides guidance on the modelling of wireless communication devices, and provides benchmark data for simulating the SAR in such phantoms or models. This document does not recommend specific SAR limits because these are found elsewhere (e.g. in IEEE Std C95.1 [1]1 or in the guidelines published by the International Commission on Non-Ionizing Radiation Protection (ICNIRP) [2]).