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.
General information
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Status: Under developmentStage: CD consultation initiated [30.20]
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Edition: 2
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Technical Committee :ISO/TC 134
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Life cycle
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Previously
PublishedISO 5314:1981
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Now
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