International Standard
ISO 7990:1985
Manganese ores and concentrates — Determination of total iron content — Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method
Reference number
ISO 7990:1985
Edición 1
1985-12
International Standard
Vista previa
p
ISO 7990:1985
14987
No disponible en español
Publicado (Edición 1, 1985)
Esta norma se revisó y confirmó por última vez en 2022. Por lo tanto, esta versión es la actual.

ISO 7990:1985

ISO 7990:1985
14987
Formato
Idioma
CHF 42
Convertir Franco suizo (CHF) a tu moneda

Resumen

Method A is applicable to products having a total iron content from 1 to 25 % (m/m), and method B is applicable to products having a total iron content from 0.2 to 2 % (m/m). ISO 7990 should be read in conjunction with ISO 4297. Specifies principle, reactions (method A only), reagents, apparatus, sampling and samples, procedure and expression of results.

Informaciones generales

  •  : Publicado
     : 1985-12
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 6
  • ISO/TC 132
    73.060.20 
  • RSS actualizaciones

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