ISO 8603:1993
Solid fertilizers; determination of urea nitrogen content; gravimetric method using xanthydrol

Standard No.

ISO 8603:1993

Release Date

1993

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Latest

ISO 8603:1993

Scope

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.

ISO 8603:1993 history

• 1993 ISO 8603:1993 Solid fertilizers; determination of urea nitrogen content; gravimetric method using xanthydrol