ISO/AWI 5314
Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
Reference number
ISO/AWI 5314
Edición 2
Working draft
ISO/AWI 5314
Un grupo de trabajo ha preparado un borrador.
Reemplazará ISO 5314:1981


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.

Informaciones generales

  •  : En desarrollo
    : Nuevo proyecto registrado en el programa de trabajo TC/SC [20.00]
  •  : 2
  • ISO/TC 134
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