ISO-2460 › Sodium hydrogen carbonate for industrial use -- Determination of iron content -- 1,10- Phenanthroline photometric method
ISO-2460
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1ST EDITION
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CURRENT
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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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Document Number
ISO 2460:1973
Revision Level
1ST EDITION
Status
Current
Publication Date
April 15, 1973
Committee Number
ISO TC 47