| Descriptors |
Trioxides, Silicon dioxide, Sulfur inorganic compounds, Gravimetric analysis, Determination of content, Magnesium inorganic compounds, Coke, Ash determination, Ferric inorganic compounds, Phosphorus pentoxide, Spectrochemical analysis, Specimen preparation, Precision, Sodium inorganic compounds, Ignition-loss tests, Coal, Tetroxides, Monoxides, Coal products, Phosphorus inorganic compounds, Potassium inorganic compounds, Calibration, Pentoxides, Testing conditions, Standard solutions, Solid fuels, Emission spectrophotometry, Manganese inorganic compounds, Fuels, Calcium oxide, Chemical analysis and testing, Accuracy, Dioxides, Absorption spectrophotometry, Titanium inorganic compounds, Volumetric analysis, Calcium inorganic compounds, Combustion test methods, Spectrophotometry, Fossil fuels, Aluminium oxide, Oxides, Ashes, Flame photometry
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