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ISO 5314:1981

Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation

May 1, 1981

General information

90.92     Jun 19, 2023

ISO

ISO/TC 134

International Standard

65.080  

French   English  

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Scope

The method consists in distilling of the ammonia from an alkaline solution, absorbing in an excess of standard volumetric sulphuric acid solution and back-titrating with standard volumetric sodium hydroxide solution. It is applicable only in the absence of urea or its derivatives, of cyanamide and of organic nitrogenous compounds.

Life cycle

NOW

PUBLISHED
ISO 5314:1981
90.92 Standard to be revised
Jun 19, 2023

REVISED BY

IN_DEVELOPMENT
ISO/DIS 5314

National adoptions

SSH ISO 5314:1981  
DPS

Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation

60.60 Standard published

DPS/KT 47 more