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naSRPS EN 17705:2022

Plant biostimulants - Determination of phosphonates

General information

45.99     Oct 12, 2023

50.20    Dec 21, 2023



European Norm

65.080     07.080  


This document specifies a method for the extraction and determination of phosphonates (P-PO3) in plant biostimulants using ion chromatography and conductivity detection (IC-CD).
This document is applicable to the fertilizing product blends belonging to PFC 7 where the EU fertilising product plant biostimulant contained in the blend represents the highest % by mass in the blend. In case of equal shares, the user may apply either this or the standard(s) applicable to the other component product(s).

Related directives

Directives related to this standard.


Life cycle


naSRPS EN 17705:2022
45.99 Dispatch of FV draft to CCMC
Oct 12, 2023

Related project

Adopted from FprEN 17705 IDENTICAL