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

Cette norme a pour objet la description de deux méthodes de dosage du fer total dans les minerais et concentrés de manganèse ; la première méthode, par titrimétrie après réduction, est applicable à des teneurs en fer total comprises entre 1 % et 25 %, la seconde méthode par spectrophotométrie à l''acide sulfosalicylique, s''applique aux teneurs en fer total comprises entre 0,2 % et 2 %.

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Main informations

Collections

National standards and national normative documents

Publication date

December 1986

Number of pages

6 p.

Reference

NF ISO 7990

ICS Codes

73.060.20 Manganese ores

International kinship

ISO 7990:1985

Sumary

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

Cette norme a pour objet la description de deux méthodes de dosage du fer total dans les minerais et concentrés de manganèse ; la première méthode, par titrimétrie après réduction, est applicable à des teneurs en fer total comprises entre 1 % et 25 %, la seconde méthode par spectrophotométrie à l''acide sulfosalicylique, s''applique aux teneurs en fer total comprises entre 0,2 % et 2 %.

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