ISO 805:1976

Aluminium oxide primarily used for the production of aluminium -- Determination of iron content -- 1,10- Phenanthroline photometric method

Applicable to Fe contents, expressed as Fe2 O3 , equal to or more than 0.005 % (m/m). Specifies the preliminary reduction of iron (III) by means of hydroxylammonium chloride. Formation of the iron(II)-1,10-phenanthroline complex in a buffered (pH value between 3.5 and 4.2). Photometric measurement at a wavelength of about 510 nm. Replaces ISO Recommendation R 805/1968.


General information

  • Status :  Withdrawn
    Publication date : 1976-09
  • Edition : 1
  • :
    ISO/TC 226
    Materials for the production of primary aluminium
  • 71.100.10
    Materials for aluminium production

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