Standard

ISO 2992:1974

Apr 1974 Withdrawn

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Abstract

Applicable to Fe contents of equal to or more than 0.0001 % (m/m). The reaction bases on the reduction of iron(III) by hydroxylammonium chloride. Formation of the complex between iron(II) and 2,2'-dipyridyl in a buffered medium (pH value between 4.5 and 6). Photometric measurement of the coloured complex at a wavelength of about 522 nm. Has also been approved by the IUPAC.

Document information

Standard from ISO
Published: 1 April 1974
Withdrawn: 30 April 2025
Edition: 1
Version: 1
Document type: IS
ISBN:

ICS 71.060.50
ISO TC ISO/TC 47

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Referred by: NS-EN 12123:2022
Referred by: NS-EN 12123:2012

ISO 2992:1974

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Abstract

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Abstract

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