ISO-3566 › Sodium fluoride primarily used for the production of aluminium -- Determination of chlorides content -- Turbidimetric method
ISO-3566
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1ST EDITION
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CURRENT
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Applicable to products having a chlorides content, expressed as chlorine, of equal to or more than 0.005 % (m/m). The principle consists in precipitation, in the presence of boric acid, of chloride ions with silver nitrate. Comparison of the opalescence of the test solution with that of standard matching solutions using Nessler tubes against a black background. Turbidimetric evaluation of the mass of precipitate.
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71.100.10 (Materials for aluminium production)
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Document Number
ISO 3566:1976
Revision Level
1ST EDITION
Status
Current
Publication Date
April 1, 1976
Committee Number
ISO TC 47/SC 7