ISO 5517:1978

This standard was last reviewed and confirmed in 2022. Therefore this version remains current.

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.

General information

Status
: Published

Publication date
: 1978-05
Edition
: 1

Number of pages
: 3
Technical Committee
: ISO/TC 34/SC 3 Fruits and vegetables and their derived products
ICS
:
67.080.01 Fruits, vegetables and derived products in general