本文件定义了与ISO/TC 180工作相关的基本术语。该委员会涵盖空间和水加热、冷却、工业过程加热和空调中太阳辐射测量和太阳能利用领域的标准化。因此，本文件中的词汇侧重于与这些测量和利用技术相关的定义。自1999年版本文件以来，太阳能光伏技术和高温太阳能热技术有了长足的发展，这些技术利用热量发电或为需要高温的过程提供高温。 本标准的一些定义也适用于这些技术；然而，还有其他文件更详细地介绍了这些技术的词汇。

This document defines basic terms relating to the work of ISO/TC 180. The committee covers standardization in the field of the measurement of solar radiation and solar energy utilization in space and water heating, cooling, industrial process heating and air conditioning. Consequently, the vocabulary within this document is focussed on definitions relating to those measurement and utilisation technologies.Since the 1999 version of this document there has been considerable development in solar photovoltaic technologies and high temperature solar thermal technologies that use heat to produce electricity or to provide high temperatures for processes that require elevated temperatures. This standard has some definitions that are useful also for those technologies; however, there are other documents that cover vocabulary for these technologies in more detail.