Standard
[PUBLISHED]
ISO 7108
ISO 7108
Ammonia solution for industrial use -- Determination of ammonia content -- Titrimetric method
Title (German)
Ammoniaklösung für Industriezwecke; Bestimmung des Ammoniakgehaltes; titrimetrische Methode
Brief description
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.