Active standard | Published: 28/04/1993

ISO 9964-3:1993

Water quality — Determination of sodium and potassium — Part 3: Determination of sodium and potassium by flame emission spectrometry
(Qualité de l´eau — Dosage du sodium et du potassium — Partie 3: Dosage du sodium et du potassium par spectrométrie d´émission de flamme)

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Detail information

Designation: ISO 9964-3:1993

Publication date: 28/04/1993

Pages: 5

Country: International technical standard

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Anotation

Description / Abstract: 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.

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