BS EN ISO 28706-3:2018
搪瓷和瓷釉 耐化学腐蚀性的测定 使用六角形容器或四角形玻璃瓶测定耐碱性液体化学腐蚀的能力
Vitreous and porcelain enamels. Determination of resistance to chemical corrosion. Determination of resistance to chemical corrosion by alkaline liquids using a hexagonal vessel or a tetragonal glass bottle