Abstract Preview

The principle of the method specified is aspirating the sample into a gas flame of sufficient thermal energy to cause any sodium and potassium present to emit its characteristic radiation and measuring the intensity at a wavelength of 589,0 nm for sodium and 766,5 nm for potassium. Applies to water samples with a mass concentration of sodium and potassium of up to 10 mg/l. For higher concentrations, a smaller test portion is taken for analysis. The lower limits of determination are less than 0,1 mg/l for both sodium and potassium.


General information

  • Status :  Published
    Publication date : 1993-04
  • Edition : 1
  • :
    ISO/TC 147/SC 2
    Physical, chemical and biochemical methods
  • 13.060.50
    Examination of water for chemical substances

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Revisions / Corrigenda

  • Now under review
    ISO 9964-3:1993

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