Vitreous and porcelain enamels - Apparatus for determination of resistance to hot detergent solutions used for washing textiles (ISO 4535:1983); German version EN ISO 4535:1998— 4 стр.
Vitreous and porcelain enamels - Determination of resistance to chemical corrosion - Part 3: Determination of resistance to chemical corrosion by alkaline liquids using a hexagonal vessel; German version EN 14483-3:2004— 17 стр.
Vitreous and porcelain enamels - Determination of resistance to chemical corrosion - Part 3: Determination of resistance to chemical corrosion by alkaline liquids using a hexagonal vessel; German version EN 14483-3:2004— 17 стр.