NF ISO 7990, A22-405 (12/1986)

NF ISO 7990, A22-405 (12/1986)

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Manganese ores and concentrates. Determination of total iron content. Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method.

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NF ISO 317, A22-407 (12/1986)

NF ISO 317, A22-407 (12/1986)

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Manganese ores and concentrates. Determination of arsenic content. Spectrometric method.

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ISO 8542:1986 (R2022)

ISO 8542:1986 (R2022)

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Manganese and chromium ores — Experimental methods for evaluation of quality variation and methods for checking the precision of sampling

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ISO 8531:1986 (R2022)

ISO 8531:1986 (R2022)

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Manganese and chromium ores — Experimental methods for checking the precision of moisture determination

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ISO 8530:1986 (R2022)

ISO 8530:1986 (R2022)

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Manganese and chromium ores — Experimental methods for checking the precision of sample division

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ISO 8541:1986 (R2022)

ISO 8541:1986 (R2022)

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Manganese and chromium ores — Experimental methods for checking the bias of sampling and sample preparation

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ISO 312:1986 (R2022)

ISO 312:1986 (R2022)

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Manganese ores — Determination of active oxygen content, expressed as manganese dioxide — Titrimetric method

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ISO 7953:1985 (R2022)

ISO 7953:1985 (R2022)

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Manganese ores and concentrates — Determination of calcium and magnesium contents — Flame atomic absorption spectrometric method

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ISO 7990:1985 (R2022)

ISO 7990:1985 (R2022)

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Manganese ores and concentrates — Determination of total iron content — Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method

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ISO 7969:1985 (R2022)

ISO 7969:1985 (R2022)

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Manganese ores and concentrates — Determination of sodium and potassium contents — Flame atomic absorption spectrometric method

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ISO 315:1984 (R2022)

ISO 315:1984 (R2022)

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Manganese ores and concentrates — Determination of nickel content — Dimethylglyoxime spectrometric method and flame atomic absorption spectrometric method

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ISO 7723:1984 (R2022)

ISO 7723:1984 (R2022)

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Manganese ores and concentrates — Determination of titanium content — 4,4'-Diantipyrylmethane spectrometric method

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ISO 4296-1:1984 (R2022)

ISO 4296-1:1984 (R2022)

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Manganese ores — Sampling Part 1: Increment sampling

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ISO 317:1984 (R2022)

ISO 317:1984 (R2022)

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Manganese ores and concentrates — Determination of arsenic content — Spectrometric method

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ISO 4296-2:1983 (R2022)

ISO 4296-2:1983 (R2022)

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Manganese ores — Sampling Part 2: Preparation of samples

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