Plant biostimulants - Determination of phosphonates

This European Standard specifies a method for the extraction and determination of phosphonates (P–PO3) in plant biostimulants using ion chromatography and conductivity detection (IC-CD).
This European Standard is also applicable to the blends of fertilizing products where plant biostimulants are the main part of the blend. Otherwise, the Technical Specification for the main part of the blend apply.

Biostimulanzien für die pflanzliche Anwendung - Bestimmung von Phosphonaten

Dieses Dokument legt ein Verfahren zur Extraktion und Bestimmung von Phosphonaten (P PO3) in Pflanzen-Biostimulanzien mit Ionenchromatographie und Leitfähigkeitsnachweis (IC CD) fest.
Dieses Dokument ist für Düngeproduktmischungen anwendbar, die zur PFC 7 gehören und bei denen das in der Mischung enthaltene EU Düngeprodukt Pflanzen-Biostimulans den größten Massenanteil in % in der Mischung ausmacht. Im Fall von gleich großen Anteilen darf der Anwender entweder die vorliegende Norm oder die für den/die anderen Bestandteil(e) anwendbare(n) Norm(en) verwenden.

Biostimulants des végétaux - Dosage des phosphonates

Le présent document spécifie une méthode d’extraction et de dosage des phosphonates (P-PO3) dans les biostimulants des végétaux par chromatographie ionique et détection conductimétrique (IC-CD).
Le présent document est applicable aux mélanges de fertilisants appartenant à la catégorie PFC 7, dans lesquels le fertilisant UE biostimulant des végétaux contenu dans le mélange représente le % le plus élevé en masse dans le mélange. Dans le cas où les proportions sont égales, l’utilisateur peut appliquer la présente norme ou la ou les normes applicables aux autres produits constituants.

Rastlinski biostimulanti - Določanje fosfonatov

General Information

Not Published
Public Enquiry End Date
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
Due Date
Completion Date


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Standards Content (Sample)

oSIST prEN 17705:2023
Rastlinski biostimulanti - Določevanje fosfonatov
Plant biostimulants - Determination of phosphonates
Biostimulanzien für die pflanzliche Anwendung - Bestimmung von Phosphonaten
Biostimulants des végétaux - Dosage des phosphonates
Ta slovenski standard je istoveten z: prEN 17705
65.080 Gnojila Fertilizers
oSIST prEN 17705:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 17705:2023

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oSIST prEN 17705:2023

prEN 17705


May 2023
ICS 65.080 Will supersede CEN/TS 17705:2022
English Version

Plant biostimulants - Determination of phosphonates
Biostimulants des végétaux - Dosage des phosphonates Biostimulanzien für die pflanzliche Anwendung -
Bestimmung von Phosphonaten
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 455.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.



CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17705:2023 E
worldwide for CEN national Members.

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oSIST prEN 17705:2023
prEN 17705:2023 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Reagents . 5
6 Apparatus . 6
7 Sampling . 6
8 Procedure . 7
8.1 Sample preparation . 7
8.2 Water extraction . 7
8.3 Preparation of the calibration solutions . 7
8.4 Measurement .

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