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DIN Standards Committee Materials Testing

Abstract

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.

Begin

2024-06-19

WI

00262378

Planned document number

DIN EN ISO 28706-4

Project number

06236771

Responsible national committee

NA 062-01-63 AA - Testing of vitreous and porcelain enamels  

Responsible european committee

CEN/TC 262 - Metallic and other inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys  

Responsible international committee

ISO/TC 107/WG 2 - Vitreous and porcelain enamel coatings  

draft standard

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
2026-01
Order from DIN Media

previous edition(s)

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 28706-4:2016); German version EN ISO 28706-4:2016
2016-07