Dipl.-Phys. Wilfried Galle

Prüfhilfsmittel und -chemikalien

Industrieberatung Emailliertechnik

Am Schwarzbach 18 - 09481 Elterlein

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Testapparatus for Determination of resistance to chemical corrosion by alkaline liquids corrosion by alkaline liquids

 

 

 

Apparatus for testing acc. to ISO 28706 "Vitreous and porcelain enamels

Determination of resistance to chemical corrosion — Part 4:

Determination of resistance to chemical corrosion by alkaline liquids using a cylindrical vessel

 

This part of ISO 28706 describes a test method for the determination of the resistance of vitreous and porcelain enamelled articles to attack by alkaline liquids at temperatures between 25 °C and 95 °C. The apparatus used is a cylindrical vessel in which only one enamelled specimen is tested.
TA_Iso_28706-4_zweites

 

Principle of test:

 

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An enamelled specimen is exposed to attack by an alkaline liquid. Test is under specified conditions of temperature and time. During the test the solution is not stirred. The loss in mass is determined and used to calculate the rate of loss in mass per unit area and, if necessary, the corrosion rate