A test portion is introduced into a solution of boric acid and the solution obtained is titrated with a standard volumetric solution of sulfuric acid in the presence of methyl red as indicator. The method is applicable to solutions containing not more than 35 % (m/m) of ammonia.
Status: PublishedPublication date: 1985-06
Edition: 1Number of pages: 2
Technical Committee: ISO/TC 47 Chemistry
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