Testing of leaching effects in roofing tiles (leaching test) – practical aspects of the testing method in
compliance with ISO 28706-2/testing apparatus

At the 55th Würzburg Brick and Tile Training Course 2017, Keramikinstitut Meissen presented a test for the weather resistance of roofing tile glazes and engobes (leaching test). For the test, boiling apparatus standardized in enamelling according to ISO 28706-02 is used, which is designed for flat plates and therefore not optimal for tests on roofing tiles.

In the talk, testing apparatus is presented with the help of which separately prepared samples as well as shaped roofing tile sales can be tested. Possible further developments and modifications are explained.

Dipl.-Phys. Wilfried Galle, Prüfhilfsmittel und -chemikalien,
Industrieberatung, Elterlein

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