IEC 62359:2010+A1:2017适用于医学诊断超声领域。它规定: -与诊断超声场的热和非热暴露方面相关的参数； -用于确定与理论组织等效模型中由超声吸收引起的温度升高有关的暴露参数的方法； -用于确定适合于某些非热效应的暴露参数的方法。 第二版取消并取代了2005年出版的第一版。它构成技术修订。与上一版相比的主要变化包括: -本标准第一版中规定的测定方法基于美国超声诊断设备（ODS）热和机械声输出指数实时显示标准中包含的方法，旨在产生相同的结果。虽然第二版原则上也遵循了ODS，并使用了相同的基本公式和假设（见附件A），但它包含了一些偏离ODS的重大修改。 -在准备IEC 62359第二版时处理的主要问题之一是“缺失”TI方程。在第1版中，没有足够的方程来对组合运行模式下的TIS和TIB进行完整的“地表”和“地下”求和。因此，相对于前一版本的主要变化与引入新的热指数计算有关，以考虑“表面上”和“表面下”热效应。2011年3月更正的内容已纳入本副本。该合并版本由第二版（2010年）及其修正案1（2017年）组成。因此，除本出版物外，无需下令修订。

IEC 62359:2010+A1:2017 is applicable to medical diagnostic ultrasound fields. It establishes:
- parameters related to thermal and non-thermal exposure aspects of diagnostic ultrasonic fields;
- methods for the determination of an exposure parameter relating to temperature rise in theoretical tissue-equivalent models, resulting from absorption of ultrasound;
- methods for the determination of an exposure parameter appropriate to certain non-thermal effects.
This second edition cancels and replaces the first edition, published in 2005. It constitutes a technical revision. Major changes with respect to the previous edition include the following:
- The methods of determination set out in the first edition of this standard were based on those contained in the American standard for Real-Time Display of Thermal and Mechanical Acoustic Output Indices on Diagnostic Ultrasound Equipment (ODS) and were intended to yield identical results. While this second edition also follows the ODS in principal and uses the same basic formulae and assumptions (see Annex A), it contains a few significant modifications which deviate from the ODS.
- One of the primary issues dealt with in preparing this second edition of IEC 62359 was "missing" TI equations. In Edition 1 there were not enough equations to make complete "at-surface" and "below-surface" summations for TIS and TIB in combined-operating modes. Thus major changes with respect to the previous edition are related to the introduction of new calculations of thermal indices to take into account both "at-surface" and "below-surface" thermal effects. The contents of the corrigendum of March 2011 have been included in this copy. This consolidated version consists of the second edition (2010) and its amendment 1 (2017). Therefore, no need to order amendment in addition to this publication.