Fruits, vegetables and derived products — Determination of iron content — 1,10- Phenanthroline photometric method
NORMA vydána dne 1.5.1978
Designation standards: ISO 5517:1978
Publication date standards: 1.5.1978
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard
Kategorie: Technické normy ISO
Description / Abstract: The method consists in decomposing the organic matter, followed by reduction of trivalent iron by hydroxyammonium chloride, forming, in a buffered medium, of the stable iron(II)/1,10 phenanthroline complex, and photometric measuring of the red-coloured complex at a wavelength of 508 nm.