IEC TR 60904-14:20 20为测量单结光伏（PV）组件的最大功率（Pmax）输出以及在工业生产线设置中标准测试条件（STC）下的报告提供了指南。由于希望在整个行业中具有一致的测量实践，因此本文档描述了此类测量的以下特征: -基本要素，以便提供共同理解； -常见问题或并发症； -误差和不确定性的来源，包括尽量减少这些来源的建议。

IEC TR 60904-14:2020 provides guidelines for measurements of the maximum power (Pmax) output of single-junction photovoltaic (PV) modules and for reporting at standard test conditions (STC) in industrial production line settings. As it is desirable to have consistent measurement practices across the industry, this document describes the following features of such measurements:
- Essential elements, in order to provide common understanding;
- Common issues or complications;
- Sources of error and uncertainty, including recommendations to minimize them.