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ISO 5314:1981

Current Revision

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

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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.


SDO ISO: International Organization for Standardization
Document Number ISO 5314
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 134/SC 4
Publish Date Document Id Type View
Not Available ISO 5314:1981 Revision