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ISO 5890:1981
M00000274
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ISO 5890:1981 Manganese ores and concentrates -- Determination of silicon content -- Gravimetric method
standard by International Organization for Standardization, 05/01/1981
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The method is applicable to products having a silicon content greater than 0,5 % (m/m) and a fluorine content not more than 0,1 % (m/m). Should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, procedure and expression of results.