DIN EN ISO 28765-2016 釉層和搪瓷.儲水,處理水,市政或工業排水和污水用螺栓連接鋼罐的設計(ISO 28765-2016).德文版本EN ISO 28765-2016
Vitreous and porcelain enamels - Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges (ISO 28765:2016); German version EN ISO 28765:2016