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ISO 25475:2016

Fertilizers — Determination of ammoniacal nitrogen ISO 25475:2016

Publication date:   Apr 7, 2016

General information

90.20   Standard under periodical review   Jul 15, 2026

ISO

ISO/TC 134 Fertilizers, soil conditioners and beneficial substances

International Standard

65.080   Fertilizers

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Published

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 25475:2016
90.20 Standard under periodical review
Jul 15, 2026

Relations

Adopted from EN 15475:2009




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