ISO 3122:1976
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ISO 3122:1976
8279

Status : Withdrawn

Abstract

Preliminary reduction of the iron(III) by hydroxylammonium chloride, if required, suppression of the interference of tin by oxalic acid. Formation of the coloured iron(III)-2,2'-dipyridyl complex in a buffered medium. Photometric measurement of the coloured complex at a wavelength of about 522 nm.

General information

  •  : Withdrawn
     : 1976-04
    : Withdrawal of International Standard [95.99]
  •  : 1
     : 4
  • ISO/TC 47
    71.060.01 
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