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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General information
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Status: PublishedPublication date: 1981-05Stage: International Standard to be revised [90.92]
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Edition: 1Number of pages: 4
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Technical Committee :ISO/TC 134ICS :65.080
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Now
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Will be replaced by
Under developmentISO/AWI 5314
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