DIN EN ISO 28706-4:2026-01
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 (ISO/DIS 28706-4:2025); German and English version prEN ISO 28706-4:2025 / Note: Date of issue 2025-11-28*Intended as replacement for DIN EN ISO 28706-4 (2016-07).
| Fecha edición: |
2026-01-01
En Vigor
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| Idiomas disponibles: | Alemán, Inglés |
| Resumen: | This document 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 with a volume-surface ratio 20:1 cm in which only one enamelled specimen is tested. NOTE 1 The test method was initially set up for determination of the resistance of vitreous and porcelain enamels to a hot sodium hydroxide solution. Within the scope of this part of ISO 28706, the resistance of other alkaline liquids can be tested. NOTE 2 This part of ISO 28706, which uses a cylindrical vessel, is generally used for tests carried out on vitreous and porcelain enamel coatings for the chemical industry. |
| Keywords: | Alkali-resistance tests|Alkalis|Bases (chemical)|Caustic soda solution|Ceramic coatings|Chemical analysis and testing|Chemical resistance|Chemical-resistance tests|Coatings|Corrosion|Corrosion resistance|Cylindrical shape|Determination|Dimensions|Enamels|High-temperature testing|Hot|Materials testing|Non-metallic coatings|Protective coatings|Resistance|Sodium hydroxide|Test equipment|Test results|Testing|Vitreous enamel|Warning notices |
| ICS: | 25.220.50 - Esmaltes |
| CTN: |
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