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Manganese and chromium ores -- Experimental methods for evaluation of quality variation and methods for checking the precision of sampling
Specifies experimental methods for the evaluation of quality variation of manganese and chromium ores, whether natural or processed, for the purpose of defining sampling procedure by the mass-basis systematic method and the two-stage method as specified in the relevant International Standards.
It also specifies methods for checking the precision of sampling by the mass-basis systematic method and the two-stage method.
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