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ISO 2460:1973

Sodium hydrogen carbonate for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method

Apr 1, 1973

General information

90.93     Feb 14, 2025

ISO

ISO/TC 47

International Standard

71.060.50  

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 2460:1973
90.93 Standard confirmed
Feb 14, 2025

REVISED BY

ABANDON
ISO/CD 2460