LST EN ISO 14719:2012 耐火材料玻璃和釉料的化學(xué)分析 使用 1,10-菲咯啉的光譜光度法測定 Fe2+ 和 Fe3+(ISO 14719:2011)
Chemical analysis of refractory material glass and glazes - Determination of Fe2+ and Fe3+ by the spectral photometric method with 1,10-phenanthroline (ISO 14719:2011)