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CEN/TS 17721:2022

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

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Withdrawn from 16.12.2024
Base Documents
CEN/TS 17721:2022
Directives or regulations
None

Standard history

Status
Date
Type
Name
16.12.2024
Main
01.04.2022
Main
This document specifies a method for laboratory measurement of the pH value in liquid microbial plant biostimulants, using pH electrodes with a glass membrane.
From the scope of this document plant biostimulants other than microbial plant biostimulants are excluded because there is no essential requirement in the Regulation (EU) 2019/1009 [1] for measuring the pH of non-microbial plant biostimulants.

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