ASTM has published standard that provides important test for PV equipment used to generate solar energy. E3006, Practice for Ultraviolet Conditioning of Photovoltaic Modules or Mini-Modules Using a Fluorescent Ultraviolet Lamp Apparatus is used to screen out materials that degrade quickly when exposed to UV radiation from sunlight. Module manufacturers will use standard to test new materials and designs prior to submitting them to accredited laboratories for independent qualification.