NF A22-405*NF ISO 7990:1986
Manganese ores and concentrates. Determination of total iron content. Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method.
- Standard No.
- NF A22-405*NF ISO 7990:1986
- Release Date
- 1986
- Published By
- Association Francaise de Normalisation
- Latest
- NF A22-405*NF ISO 7990:1986
NF A22-405*NF ISO 7990:1986 history
- 1986 NF A22-405*NF ISO 7990:1986 Manganese ores and concentrates. Determination of total iron content. Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method.
