ISO 3122:1976
w
ISO 3122:1976
8279

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  •  :  Withdrawn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
  •  : 1
     : 4
  •  : ISO/TC 47 Chemistry
  •  :
    71.060.01 Inorganic chemicals in general

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