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EVS-EN 17720:2024

Plant biostimulants - Determination of enterococci

General information

Valid from 16.12.2024
Base Documents
EN 17720:2024
Directives or regulations
None

Standard history

Status
Date
Type
Name
16.12.2024
Main
01.04.2022
Main
This document specifies a method for the enumeration of enterococci in microbial and non-microbial plant biostimulants. This document specifies a colony-count technique on a selective medium (Slanetz-Bartley agar) with confirmation on Bile Esculin Azide agar.
This document is applicable to all formulations of microbial and non-microbial plant biostimulants in liquid or solid form. This document is not applicable to other fertilizing products.
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, 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.

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