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ISO/FDIS 5314

Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation ISO/FDIS 5314

General information

50.00   Final text received or FDIS registered for formal approval   Jun 1, 2026

ISO

ISO/TC 134 Fertilizers, soil conditioners and beneficial substances

International Standard

65.080   Fertilizers

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

PREVIOUSLY

PUBLISHED
ISO 5314:1981

NOW

IN_DEVELOPMENT
ISO/FDIS 5314
50.00 Final text received or FDIS registered for formal approval
Jun 1, 2026




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