DS DS/EN ISO 4535
DS DSEN SO 4535 1999-DEC-07 Vtreous and procelan enamels - Apparatus for determnaton of resstance to hot detergent solutons used for washng textles
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This standard specifies requirements for the apparatus to be used for the determination of the resistance of flat surfaces of vitreous and porcelain enamels to attack by hot detergent solutions used for washing textiles.