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BSI PD CEN/TS 17708:2022

BSI PD CEN/TS 17708:2022

$102.76

Plant biostimulants. Preparation of sample for microbial analysis

Published By Publication Date Number of Pages
BSI 2022 20
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This document defines general rules for the aerobic preparation of the initial suspension and of dilutions for microbiological examinations of microbial plant biostimulants. This horizontal method might not be appropriate in very detail for certain products. In this case, different methods which are specific to these products can be used if necessary, for justified technical reasons.

PDF Catalog

PDF Pages PDF Title
2 National foreword
5 European foreword
6 Introduction
8 1 Scope
2 Normative references
3 Terms and definitions
9 4 Principle
5 Diluents
6 Apparatus
10 6.19 Ultrasonic sonicator.
6.20 Mechanical stirrer.
6.21 Magnetic stirrer.
7 Sampling and storage
8 Preparation of samples and suspensions
8.1 Protocol for enumeration of beneficial microorganisms
8.1.1 General
11 8.1.2 Liquid – water based – formulations
8.1.3 Liquid – oil based emulsifiable concentrate (EC) – formulations
8.1.4 Solid – wettable powder (WP) – formulations
8.1.5 Solid – water dispersible granules (WDG) – formulations
8.1.6 Solid – pellets, granules, microgranules (slow release) – formulations
12 8.1.7 Solid – substrate
8.2 Protocol for enumeration of not-desirable microorganisms
8.2.1 General
8.2.2 Liquid – water based – formulations
8.2.3 Liquid – oil based emulsifiable concentrate (EC) – formulations
8.2.4 Solid – wettable powder (WP) – formulations
8.2.5 Solid – water dispersible granules (WDG) – formulations
8.2.6 Solid – pellets, granules, microgranules (slow release) – formulations
8.2.7 Solid – substrate
13 8.3 Protocol for the determination of anaerobic plate count
8.3.1 General
8.3.2 Liquid – water based – formulations
8.3.3 Liquid – oil based emulsifiable concentrate (EC) – formulations
8.3.4 Solid – wettable powder (WP) – formulations
8.3.5 Solid – water dispersible granules (WDG) formulations
8.3.6 Solid – pellets, granules, microgranules (slow release) – formulations
8.3.7 Solid – substrate
8.4 Protocol for the detection of pathogenic microorganisms
8.4.1 General
8.4.2 Liquid formulations
14 8.4.3 Solid formulations
8.5 Further dilutions
8.5.1 Decimal dilution series
8.5.2 Other dilutions series
8.6 Duration of the procedure
15 Annex A (informative) Plating procedure
17 Annex B (informative) Diluents for general use
19 Bibliography

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BSI PD CEN/TS 17708:2022
$102.76