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dnaSRPS EN 17403:2025

Inorganic fertilizers - Determination of cold water insoluble nitrogen and hot water insoluble nitrogen in solid urea formaldehyde and methylene urea slow-release fertilizers and determination of the solubility of nutrient polymers in phosphate buffer solution with a pH of 7,5 at 100 °C

General information

50.20     Oct 15, 2026

50.60    Dec 10, 2026

ISS

H134

European Norm

65.080  

English  

Scope

This document specifies a method for the determination of the cold and hot water insoluble nitrogen content in solid urea formaldehyde and methylene urea slow-release fertilizers and for the determination of the solubility of nutrient polymers in a phosphate buffer solution with a pH of 7,5 at 100 °C, in their pure form in inorganic fertilizers.
This document is not applicable to the following nutrient polymers: liquid methylene urea.

Related directives

NOTE: If the word "harmonized" (marked in green) is not found in the field with the name of the directive, it means that the European standard is not cited in the OJEU.

2019/1009

Life cycle

PREVIOUSLY

PUBLISHED
SRPS CEN/TS 17403:2021

NOW

PROJECT
dnaSRPS EN 17403:2025
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Oct 15, 2026

Related project

Adopted from FprEN 17403 IDENTICAL

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