Abstract 

Describes a method applicable to products having cobalt contents equal to or greater than 0,1 mg/kg. The principle of determination is based on dissolution of a test portion, formation of the coloured cobalt 2-nitrose-1-naphtol complex, extraction with chloroform and photometric measurement at a wavelength of about 530 nm.


General information

  • Status :  Withdrawn
    Publication date : 1980-11
  • Edition : 1
    Number of pages : 4
  • :
    ISO/TC 47
    Chemistry
  • 71.060.01
    Inorganic chemicals in general

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