ISO 3332:1975
p
ISO 3332:1975
8597

Abstract

 Preview

Based on dissolution of a test sample in water, distillation of the ammonia after displacement by an alkali solution. Absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of methyl red/methylene blue mixed indicator. A typical distillation apparatus is shown in a figure.


General information 

  •  :  Published
     : 1975-07
  •  : 1
     : 4
  •  : ISO/TC 47 Chemistry
  •  :
    71.060.50 Salts

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