Plant biostimulants - Determination of specific elements - Part 3: Determination of mercury; German version FprEN 17701-3:2024
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:—1. 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 fertilizing 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
Order from DIN Media