ISO 14719:2011规定了1,10-菲咯啉分光光度法，用于定量测定陶瓷、玻璃和釉料的氧化原料和碱性材料（例如长石、高岭石、粘土、石灰石、石英耐火材料）中的Fe2+和Fe3+。ISO 14719:2011可以扩展到其他铝硅酸盐材料，前提是产生不确定性数据来支持它。然而，高纯氧化铝和铬矿样品的分解可能存在问题。 该方法不适用于还原材料，如碳化硅、石墨-氧化镁等。

ISO 14719:2011 specifies a spectral photometric method with 1,10-phenanthroline for the quantitative determination of Fe²⁺ and Fe³⁺ in oxidic raw and basic materials for ceramics, glass and glazes, e.g. feldspar, kaolinites, clay, limestone, quartz refractory materials. ISO 14719:2011 could be extended to other aluminosilicate materials, providing that uncertainty data is produced to support it. However, there might be problems in the decomposition of high-purity alumina and chrome ore samples. The method is not suitable for reduced materials, such as silicon carbide, graphite-magnesia, etc.