Reference number
ISO 8603:1993
© ISO 2024
ISO 8603:1993
Solid fertilizers — Determination of urea nitrogen content — Gravimetric method using xanthydrol
Edition 1
1993-01
Withdrawn
Withdrawn (Edition 1, 1993)

Abstract

The principle of the method specified is precipitation of the urea with xanthydrol in acetic acid solution, filtration of the dixanthylurea precipitate, drying, and weighing. This method is not applicable to fertilizers containing cyanamide or the condensation products of urea and aldehydes.

General information

  • Status
     : Withdrawn
    Publication date
     : 1993-01
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 4
  • Technical Committee :
    ISO/TC 134
    ICS :
    65.080 
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