Up to now, solar air collectors were not considered in CEN standards dealing with solar energy and more specifically with solar collectors (EN 12975 parts 1 and 2).
Thanks to the Cost Effective project, this problem has been solved out and solar air collectors are now included in the scope of the revised serie of standards EN 12975. These draft versions contain requirements on durability, reliability and safety for solar air collectors (EN 12975-1) as well as test methods for validating these requirements and measuring the thermal performance of collector (EN 12975-2).