ISO/DIS 5314:2025

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

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Description

Features

Life cycle

Historical

Summary

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.

Notes

40.00 : DIS enregistré

Technical characteristics

Publisher	International Organization for Standardization (ISO)
Publication Date	10/03/2025
Edition	2
Page Count	16
EAN	---
ISBN	---
Weight (in grams)	---