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prEN ISO 25475 Edition 03/2021
Fertilizers - Determination of ammoniacal nitrogen (ISO 25475:2016)
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  • 25.3 / copy
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Abstract

ISO 25475:2016 specifies a method for the determination of the ammoniacal nitrogen content in fertilizers. The method is applicable to all nitrogenous fertilizers including compound fertilizers, in which nitrogen is found exclusively either in the form of ammonium salts or ammonium salts together with nitrates. ISO 25475:2016 is not applicable to fertilizers containing urea, cyanamide or other organic nitrogenous compounds.

Status

Draft - Withdrawn

Origin

Technical Committee :
CEN/TC 260 : Fertilizers and liming materials

Implementation

start of the vote on the project    23/05/2019   date of ratification (dor)    04/01/2021
end of the vote on the project    15/08/2019   date of anouncement (doa)    04/06/2021
start of the vote on the final project    07/10/2020   date of publication (dop)    06/09/2021
end of the vote on the final project    02/12/2020   date of withdrawal (dow)    06/09/2021


Publication Official Journal
of the Grand-Duchy of Luxembourg
Reference

International Classification for Standards (ICS codes) :

65.080 : Fertilizers

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