GOST R IEC 60904-5-2013 Photovoltaic devices. Part 5. Determination of the equivalent cell temperature (ECT) of photovoltaic (PV) devices by the open-circuit voltage method
IEC 61853-1:2011 Photovoltaic (PV) module performance testing and energy rating - Part 1: Irradiance and temperature performance measurements and power rating
ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
GOST R IEC 60904-5-2013 history
2013GOST R IEC 60904-5-2013 Photovoltaic devices. Part 5. Determination of the equivalent cell temperature (ECT) of photovoltaic (PV) devices by the open-circuit voltage method