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ISO 320:1981
M00000124
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ISO 320:1981 Manganese ores -- Determination of sulphur content -- Barium sulphate gravimetric methods and sulphur dioxide titrimetric method after combustion
standard by International Organization for Standardization, 12/01/1981
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Describes three methods: methods I and II are gravimetric methods which are applicable to maganese ores having sulphur contents greater than 0.01 % (m/m), and method III is a titrimetric method. Should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, sample, procedure and expression of results. A figure illustrates the apparatus for determination of sulphur content in accordance with method III.