Aktívna norma | Vydaná: 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)

Dostupné jazyky: Anglicky, Francúzsky

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Podrobné informácie

Označenie: ISO 9964-3:1993

Dátum vydania: 28.04.1993

Stránok: 5

Krajina: Medzinárodná technická norma

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Anotácia

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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