Chemical analysis of silicon-carbide-containing raw materials & refractory products. Determination of loss on ignition, total carbon, free carbon & silicon carbide, total & free silica & total & free silicon Refractory materials, Refractories, Raw materials, Carbides, Silicon inorganic compounds, Carbon, Chemical analysis & testing, Determination of content, Ignition-loss tests, Silicon dioxide, Silicon, Combustion test methods, Gravimetric analysis