NS EN 12975-1 : 2006 + A1 2010

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Durability and reliability
6 Safety
7 Collector identification
Annex A (informative) - Information on conformity
        assessment
Annex B (informative) - Description of solar collectors
       materials and manufacture
Annex C (informative) - Environmental protection
Annex D (informative) - Tests to be repeated in collector
        design modifications
Bibliography

Describes requirements on durability (including mechanical strength), reliability and safety for liquid heating solar collectors. Also considers provisions for evaluation of conformity to these requirements. Applies to concentrating collectors; thermal performance testing as given in EN 12975-2:2006, is also applicable to most concentrating collector designs, from stationary non-imaging concentrators as CPCs to high concentrating tracking designs. Collectors that are custom-built (built in, roof integrated collectors that do not comprise 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 standard. Instead, a module with the same structure as the ready collector is tested. The module gross area in the case of custom built collectors should be at least 2 m[2]. The test is valid only for larger collectors, than the tested module. For collectors the national and European Guidelines for Structural Planning and overhead glazing are not valid. So it should be applied for the design of the static of the collector.