EUROLAB, with its state-of-the-art accredited laboratories and expert team, offers precise and rapid testing services within the scope of EN 12373-6 testing. This part of this European Standard specifies a method for assessing the quality of sealed anodic oxidation coatings on aluminum and its alloys by measuring the mass loss after immersion in phosphoric acid/chromic acid solution without prior acid treatment.
The method can be applied to anodic oxidation coatings for decorative or protective purposes or where resistance to staining is important.
The method does not apply to:
The method is destructive and can serve as a reference method in case of doubt or dispute regarding the results of the loss of suction power (EN 12373-4) or acceptance measurement (EN 12373-5) test.
While an unsealed anodic oxidation coating on aluminum is rapidly dissolved by the acid environment, a well-sealed coating will withstand prolonged immersion without appreciable attack.
The choice of phosphoric acid and chromic acid solution is specific to the test method. This solution immersion is intended to simulate the conditions the coating may encounter during service.
EN 12373-6 provides a detailed procedure for carrying out the test, possibly including preparation of samples, immersion conditions and measurement of mass loss.
EUROLAB assists manufacturers with EN 12373-6 test compliance. Our test experts, with their professional working mission 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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