This European Standard specifies test methods for the performance characterization of stores which are intended for use in small custom built systems as specified in EN 12977 1. Stores tested according to this document are commonly used in solar hot water
DS/EN 12977-3:2012 history
2012DS/EN 12977-3:2012 Thermal solar systems and components - Custom built systems - Part 3: Performance test methods for solar water heater stores