Ammonia solution for industrial use — Determination of ammonia content — Titrimetric method
NORMA vydaná dňa 6.6.1985
Označenie normy: ISO 7108:1985
Dátum vydania normy: 6.6.1985
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: 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.