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ISO 2368:1972 PDF
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Aluminium fluoride for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method
The method is applicable to products having a content greater than 0,020 %. The principle consists in dissolution of a test portion by either alkaline or acid fusion. Reduction of the iron(III) by hydroxylammonium chloride. Formation of the iro(II)-1, 10-phenanthroline complex in a buffered medium (pH value between 3,5 and 4,2) Photometric measurement of the coloured complex at a wavelength of about 510 nm.
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| Edition | 1972 |
|---|---|
| Published Date | 1972 |
| Published By | International Standardization Organisation |
| Page Count | 4 |
