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BSI PD CEN/TS 17721:2022

BSI PD CEN/TS 17721:2022

$102.76

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

Published By Publication Date Number of Pages
BSI 2022 18
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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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
5 European foreword
6 Introduction
7 1 Scope
2 Normative references
3 Terms and definitions
11 4 Principle
5 Apparatus and materials
5.1 General
12 5.2 pH measuring apparatus
5.3 Water
5.4 pH meter
13 5.5 pH electrode
5.6 Standard buffer solutions
5.7 Storage solution for the pH electrodes
14 6 Sampling
7 Procedure
7.1 General
7.2 Test conditions
7.3 Calibration
7.4 Number of determinations
7.5 Measuring the pH value
15 8 Evaluation
9 Test report
17 Bibliography

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BSI PD CEN/TS 17721:2022
$102.76