Water quality — Determination of sodium and potassium — Part 1: Determination of sodium by atomic absorption spectrometry
NORMA vydána dne 29.4.1993
Označení normy: ISO 9964-1:1993
Datum vydání normy: 29.4.1993
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy ISO
Description / Abstract: 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 589,0 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.