EUROLAB laboratory provides testing and compliance services within the scope of EN 927-7 standard. This standard specifies a test method for assessing the discoloration of coating systems on wood due to wood extracts from knots.
Discoloration is measured by colorimetry and the result is expressed as the color difference between the coated surface on the knot and the coated surface near the knot.
The treatment of external wooden surfaces has both aesthetic and protective functions. A vital purpose of a coating system is to protect against discoloration caused by wood extracts. Discoloration can be characterized as tannin staining or knot staining.
This standard provides a method for assessing the discoloration of knots caused by coatings on wood, ie it relates to knot painting only.
Previous research has shown that xenon arc exposure correlates better with natural weather conditions than the fluorescent UV test method.
EUROLAB assists manufacturers with EN 927-7 test compliance. Our test experts, with their professional working missions and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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EUROLABreporting and certification activities, United Accreditation Foundation (UAF), Turkish Accreditation Agency (TÜRKAK) ve Enterprise Accreditation Foundation (EAF) based on the accreditation provided by the accreditation body. The Enterprise Accreditation Foundation (EAF) accreditation body is also a signatory of the United Nations (UN GLOBAL COMPACT) organization.
