IEC 62555:2013确立了与HITU场有关的辐射力天平使用的一般原则，其中障碍物（目标）拦截了待测量的声场；规定了一种基于充液目标热膨胀测量确定超声波换能器总发射声功率的量热法；规定与超声波换能器电功率特性声明相关的要求；提供与测量过程中避免声空化有关的指南；提供与不同结构和几何形状的HITU传感器测量相关的指南，包括准直、发散和会聚传感器以及多传感器- 元件传感器；为选择最合适的测量方法提供指导；并提供有关整体测量不确定性评估的信息。本国际标准适用于测量HITU设备在0.5 MHz至5 MHz频率范围内产生的最大功率为500 W的超声波功率。HITU设备可产生会聚、准直或发散场。对于小于500 kHz的频率，不存在验证，用户应评估功率测量和测量系统在工作频率下的不确定性。本国际标准不适用于用于物理治疗的超声波设备，也不适用于用于一般疼痛缓解的碎石。

IEC 62555:2013 establishes general principles relevant to HITU fields for the use of radiation force balances in which an obstacle (target) intercepts the sound field to be measured; specifies a calorimetric method of determining the total emitted acoustic power of ultrasonic transducers based on the measurement of thermal expansion of a fluid-filled target; specifies requirements related to the statement of electrical power characteristics of ultrasonic transducers; provides guidance related to the avoidance of acoustic cavitation during measurement; provides guidance related to the measurement of HITU transducers of different construction and geometry, including collimated, diverging and convergent transducers, and multi-element transducers; provides guidance on the choice of the most appropriate measurement method; and provides information on assessment of overall measurement uncertainties. This International Standard is applicable to the measurement of ultrasonic power generated by HITU equipment up to 500 W in the frequency range from 0,5 MHz to 5 MHz. HITU equipment may generate convergent, collimated or divergent fields. For frequencies less than 500 kHz, no validations exist and the user should assess the uncertainties of the power measurement and measurement system at the frequencies of operation. This International Standard does not apply to ultrasound equipment used for physiotherapy, for lithotripsy for general pain relief.