Reference number
ISO 9964-3:1993
ISO 9964-3:1993
© ISO 2024
International Standard
ISO 9964-3:1993
Water quality — Determination of sodium and potassium — Part 3: Determination of sodium and potassium by flame emission spectrometry
Edition 1
1993-05
1993-05
ISO 9964-3:1993
17871
Published
(Edition 1, 1993)
This publication was last reviewed and confirmed in 2019.
Therefore this version remains current.
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.
General information
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Status: PublishedPublication date: 1993-05Stage: International Standard under systematic review [90.20]
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Edition: 1Number of pages: 5
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Technical Committee :ISO/TC 147/SC 2ICS :13.060.50
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