Abstract

This document specifies a method for determination of the content of mercury (Hg) in plant biostimulants using (cold) vapour generation apparatus coupled to an atomic absorption spectrophotometer and a method using a direct amalgamation technique. It is applicable to aqua regia digests prepared according to EN 17701-1:2024. This document is applicable to the blends of fertilizing products where a blend is a mix of at least two of the following component EU fertilising products categories: Fertilizers, Liming Materials, Soil Improvers, Growing Media, Inhibitors, Plant Biostimulants, and where the following category Plant Biostimulants is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If Plant Biostimulants is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a blend of fertilizing products is composed of components in equal quantity or in case the component EU fertilising products used for the blend have identical formulations , the user decides which standard to apply.

Begin

2022-03-14

WI

00455064

Planned document number

DIN EN 17701-3

Project number

05702594

Responsible national committee

NA 057-03-06 AA - Plant biostimulants  

Responsible european committee

CEN/TC 455/WG 4 - Other safety parameters  

draft standard

Plant biostimulants - Determination of specific elements - Part 3: Determination of mercury; German and English version prEN 17701-3:2023
2023-04
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previous edition(s)

Plant biostimulants - Determination of specific elements - Part 3: Determination of mercury; German version CEN/TS 17701-3:2022
2022-06

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