DIN EN ISO 28706-1:2011
釉瓷和搪瓷.耐化學腐蝕性的測定.第1部分:室溫下耐酸化學腐蝕性的測定(ISO 28706-1-2008).德文版本EN ISO 28706-1-2011
Vitreous and porcelain enamels - Determination of resistance to chemical corrosion - Part 1: Determination of resistance to chemical corrosion by acids at room temperature (ISO 28706-1:2008); German version EN ISO 28706-1:2011