ISO 5314:1981
ISO 5314:1981 Fertilizers – Determination of ammoniacal nitrogen content – Titrimetric method after distillation
CDN $86.00
Description
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.
Edition
1
Published Date
1981-05-01
Status
PUBLISHED
Pages
4
Language
English
Format
Secure PDF
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Abstract
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.
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