ISO/AWI 5314
Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
Reference number
ISO/AWI 5314
Edition 2
Working draft
ISO/AWI 5314
A working group has prepared a draft.
Will replace 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.

General information

  •  : Under development
    : New project registered in TC/SC work programme [20.00]
  •  : 2
  • ISO/TC 134
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