95.99 Withdrawal of Standard Mar 6, 2007
ISO
ISO/TC 134 Fertilizers, soil conditioners and beneficial substances
International Standard
65.080 Fertilizers
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.
WITHDRAWN
ISO 8603:1993
95.99
Withdrawal of Standard
Mar 6, 2007