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BS EN ISO 28706-1:2011
Vitreous and porcelain enamels. Determination of resistance to chemical corrosion. Determination of resistance to chemical corrosion by acids at room temperature (British Standard)
ISO 28706-1:2008 describes a test method for the determination of the resistance of vitreous and porcelain enamelled articles to attack by an acid at room temperature, and also specifies a method of classifying the results.
British Standards Institution [bsi]