Manganese ores -- Determination of sulphur content -- Barium sulphate gravimetric methods and sulphur dioxide titrimetric method after combustion

This document establishes technical protocols for determining sulfur content within manganese ores. It outlines two distinct methodologies suitable for laboratory analysis. The first approach utilizes the barium sulfate gravimetric method, which relies on the precise measurement of mass changes following chemical precipitation. The second technique employs titration of sulfur dioxide generated after combustion, providing an alternative means of quantification for various sample types. These procedures define the necessary equipment, reagents, and step-by-step operational requirements to ensure consistency and accuracy in results. The guidance provided covers sample preparation, the specific chemical reactions involved, calculation formulas, and the reporting of final data. By adhering to these defined steps, laboratories can effectively assess sulfur concentrations, supporting quality control in the mining and processing sectors. The document serves as a reference for analytical chemistry procedures applicable to mineralogical analysis without implying specific performance outcomes or rankings.