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SSH ISO 3332:1975

Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation

Jul 29, 2015

General information

60.60     Jul 29, 2015

DPS

DPS/KT 47

International Standard

71.060.50  

English  

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Scope

Based on dissolution of a test sample in water, distillation of the ammonia after displacement by an alkali solution. Absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of methyl red/methylene blue mixed indicator. A typical distillation apparatus is shown in a figure.

Life cycle

PREVIOUSLY

WITHDRAWN
SSH 1353-2:1987

NOW

PUBLISHED
SSH ISO 3332:1975
60.60 Standard published
Jul 29, 2015

Related project

Adopted from ISO 3332:1975