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Norm
ISO 9964-2:1993
Issue date: 1993 04 28
Water quality — Determination of sodium and potassium — Part 2: Determination of potassium by atomic absorption spectrometry
The principle of the method specified is adding a caesium chloride solution to the sample as an ionization suppressant, aspirating the sample directly into the air/acetyl...
Valid
Publisher:
International Organization for Standardization
Format:
Digital | 4 Pages
Language:
English
ICS
The principle of the method specified is adding a caesium chloride solution to the sample as an ionization suppressant, aspirating the sample directly into the air/acetylene flame of an atomic absorption spectrometer and measuring the absorbance at a wavelength of 766,5 nm. Applies to water samples with a mass concentration of potassium in the range from 5 mg/l to 50 mg/l. This range can be extended if other dilution factors are chosen.
