The method is applicable to products having sodium contents greater than 0.01 % (m/m). The principle consists in the dissolution of a test portion, followed by acidification to ph value 1. Atomization of the obtained solution in the burner of a flame spectrophotometer. Measurement of the intensity of the radiation emitted at 589 nm; comparison with the intensity obtained for standard sodium chloride solutions, the acidity and potassium chloride content of which are equivalent to that of the test solution. - Cancels and replaces ISO Recommendation R 1550-1970.

General information

  • Status :  Withdrawn
    Publication date : 1973-12
  • Edition : 1
    Number of pages : 3
  • :
    ISO/TC 47
  • 71.060.40

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