Photovoltaic (PV) module performance testing and energy rating -- Part 3: Energy rating of PV modules ((IEC 61853-3:2018) EN IEC 61853-3:2018) (english version)
Photovoltaic devices - Part 3: Measurement principles for terrestrial photovoltaic (PV) solar devices with reference spectral irradiance data (IEC 60904-3:2019) (english version)