Over deze norm
This International Standard specifies test methods for validating the durability, reliability and safety requirements for fluid heating collectors as specified in EN 12975-1. This International Standard also includes four test methods for the thermal performance characterization of fluid heating collectors. These are steadystate and quasi-dynamic thermal performance of glazed and unglazed liquid heating solar collectors and steady-state thermal performance of glazed and unglazed air heating solar collectors. Performance dependency on flow rate is only included for air heating collectors. This International Standard is not applicable to those collectors in which the thermal storage unit is an integral part of the collector to such an extent that the collection process cannot be separated from the storage process for the purpose of making measurements of these two processes. It is also applicable to thermal-electrical hybrid collectors, so called PVT collectors; however it does not cover electrical safety or other specific properties related to the PV part of these collectors. Collectors that are custom built (built in; e.g. roof integrated collectors that do not compose of factory made modules and are assembled directly on the place of installation) cannot be tested in their actual form for durability, reliability and thermal performance according to this International Standard. Specific size requirements are therefore to be followed when testing these collector types and the test is valid only for larger collectors than the tested module.