International Standard
ISO 2460:1973
Sodium hydrogen carbonate for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method
Reference number
ISO 2460:1973
ISO 2460:1973
Edición 1
1973-04
1973-04
© ISO 2024
International Standard
p
ISO 2460:1973
7373
No disponible en español
Publicado
(Edición 1, 1973)
Esta norma se revisó y confirmó por última vez en 2019.
Por lo tanto, esta versión es la actual.
Resumen
The method is applicable to products having a content equal to or greater than 0,1 mg/kg. The principle concists in reduction of the iron(III) by hydroxylammoniumchloride. Formation of a iron(II)-1,10-phennanthroline complex in a buffered solution. Photometric measurement of the coloured complex at a wavelength of about 510 nm.
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