Photovoltaic Devices Part 3 Measurement Principles for Terrestrial Photovoltaic PV Solar Devices with Reference Spectral Irradiance Data ( Third Revision )
Measurement procedures for materials used in photovoltaic modules: Part 1 encapsulants: Sec 4 measurement of optical transmittance and calculation of the solar - Weighted photon transmittance, yellowness index, and uv cut - Off wavelength