ISO 621:1981
Manganese ores — Determination of metallic iron content (metallic iron content not exceeding 2 %) — Sulphosalicylic acid photometric method
Reference number
ISO 621:1981
Edición 2
1981-11
Retirada
ISO 621:1981
4741
Retirada (Edición 2, 1981)

Resumen

This second edition cancels and replaces the first edition (i.e. ISO 621-1975). Specifies principle, reagents, apparatus, sample, procedure and expression of results.

Informaciones generales

  •  : Retirada
     : 1981-11
    : Retirada de la Norma Internacional [95.99]
  •  : 2
     : 2
  • ISO/TMBG
    73.060.20 
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