Your products will be tested according to European standards
DIN EN ISO 9806,
DIN EN 12975,
DIN EN 12976 and
DIN EN 12977.
Recognized test labs examine your solar thermal products according to quality criteria such as resistance to mechanical damage, temperature and weather conditions.
As well as conforming to these standards, your product must be subject to a quality system (product-specific physical inspection) as per the standards series DIN EN ISO 9000 et seq. in order to qualify for the Solar KEYMARK.
You can find more details about the certification process in the
certification program.