Résumé
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.
Informations générales
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État actuel: PubliéeDate de publication: 1993-05Stade: Norme internationale en cours d'examen systématique [90.20]
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Edition: 1Nombre de pages: 5
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Comité technique :ISO/TC 147/SC 2ICS :13.060.50
- RSS mises à jour
Cycle de vie
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Actuellement
PubliéeISO 9964-3:1993
Les normes ISO sont réexaminées tous les cinq ans
Stade: 90.20 (En cours d'examen)