GB/T 9989.2-2015
搪瓷耐化学侵蚀的测定 第2部分:耐沸腾酸、沸腾中性液体及其蒸气化学侵蚀的测定
Vitreous and porcelain enamels.Determination of resistance to chemical corrosion.Part 2:Determination of resistance to chemical corrosion by boiling acids,boiling neutral liquids and/or their vapours
GBT9989.2-2015, GB9989.2-2015