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BSI PD CEN/TS 17719:2022

BSI PD CEN/TS 17719:2022

$102.76

Plant biostimulants. Determination of the anaerobic plate count

Published By Publication Date Number of Pages
BSI 2022 16
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This document provides a horizontal method for enumeration of microorganisms that are able to grow and form colonies in a solid medium after anaerobic incubation at 30 °C. The method is applicable to microbial plant biostimulants for verifying that the concentration of anaerobes does not exceed the respective limits outlined in the EU Regulation on Fertilising Products [1]. This method does not apply to the microbiological monitoring of the environment in which microbial plant biostimulants are manufactured. No information about potential human pathogens can be inferred from anaerobic plate counts.

PDF Catalog

PDF Pages PDF Title
2 National foreword
5 European foreword
6 Introduction
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Principle
4.1 General
4.2 Brief description
5 Culture media and reagents
6 Equipment and consumables
9 7 Preparation of test sample
7.1 General
7.2 Liquid – water-based formulations
7.3 Liquid – oil-based (emulsifiable concentrate – EC) formulations
7.4 Solid – wettable powder (WP) formulations
7.5 Solid – water dispersible granules (WDG) formulations
10 7.6 Solid – pellets, granules, microgranules (slow release) formulations
7.7 Solid substrates
8 Procedure
8.1 Test portion, initial suspension and dilutions
8.2 Inoculation and incubation
8.3 Critical Control Point
9 Calculation
11 10 Expression of results
11 Performance characteristics of the method
11.1 Interlaboratory studies
11.2 Sensitivity
11.3 Specificity
12 Test report
13 Quality assurance
12 Annex A (informative) Guidelines for calculating and reporting the Anaerobic Plate Counts (ANPC)
13 Annex B (normative) Composition and preparation of culture media and reagents
15 Bibliography

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BSI PD CEN/TS 17719:2022
$102.76