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BSI BS EN 17721:2024

Plant biostimulants. Determination of the pH for liquid microbial plant biostimulants/pH in microbial products. Determination of pH
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BSI BS EN 17721:2024

Plant biostimulants. Determination of the pH for liquid microbial plant biostimulants/pH in microbial products. Determination of pH

PUBLISH DATE 2025
PAGES 24
BSI BS EN 17721:2024
This document specifies a method for laboratory measurement of the pH value in liquid microbial plant biostimulants, using pH electrodes with a glass membrane. This document does not apply to plant biostimulants other than microbial plant biostimulants. 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 percentage in the blend by mass or volume, or in the case of liquid form by dry mass. If Plant Biostimulants is not the highest percentage in the blend, the European Standard for the highest percentage 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.
SDO BSI: British Standards Institution
Document Number EN 17721
Publication Date June 18, 2025
Language en - English
Page Count 24
Revision Level
Supercedes
Committee W/-
Publish Date Document Id Type View
Nov. 29, 2024 BS EN 17721:2024 Revision
June 18, 2025 BS EN 17721:2024 Consolidated