Ключевые слова:
Pigments, Blue, Paints, Sampling methods, Chemical composition, Volatile matter determination, Acidity, Aqueous extraction methods, Solvent extraction methods, Determination of content, Ferric inorganic compounds, Trioxides, Ferrous inorganic compounds, Monoxides, Iron inorganic compounds, Gravimetric analysis, Quantitative analysis, Chemical analysis and testing, Testing conditions, Mathematical calculations