Comparison among three testing standards for thermal performance of radiant ceiling panel

Compares the testing regulations for thermal performance of radiant ceiling panel in three standards of ASHRAE 138-2013, EN 14240 and JG/T 403—2013 in detail. Analyses the advantages, disadvantages and the difficulties of three standards in real application. Proposes the combination type of the internal and external heat source methods, and presents some suggestions for carrying out relevant performance tests in China.