oSIST prEN 17713:2023

SLOVENSKI STANDARD
oSIST prEN 17713:2023
01-maj-2023
Rastlinski biostimulanti - Ugotavljanje prisotnosti in števila Azospirillum spp.
Plant biostimulants - Determination of Azospirillum spp.
Pflanzen-Biostimulanzien - Bestimmung von Azospirillum spp.
Biostimulants des végétaux - Détermination d'Azospirillum spp.
Ta slovenski standard je istoveten z: prEN 17713
ICS:
65.080 Gnojila Fertilizers
oSIST prEN 17713:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 17713:2023

---------------------- Page: 2 ----------------------
oSIST prEN 17713:2023


DRAFT
EUROPEAN STANDARD
prEN 17713
NORME EUROPÉENNE

EUROPÄISCHE NORM

April 2023
ICS 65.080 Will supersede CEN/TS 17713:2022
English Version

Plant biostimulants - Determination of Azospirillum spp.
Biostimulants des végétaux - Détermination Pflanzen-Biostimulanzien - Bestimmung von
d'Azospirillum spp. Azospirillum spp.
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 455.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N

EUROPÄISCHES KOMITEE FÜR NORMUN G

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17713:2023 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 17713:2023
prEN 17713:2023 (E)
Contents Page
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Enumeration of Azospirillum spp. . 7
4.1 General . 7
4.2 Sample preparation . 8
4.2.1 General . 8
4.2.2 Liquid -based water- formulations . 8
4.2.3 Liquid – oil based (emulsifiable concentrate -EC) formulations . 8
4.2.4 Solid - Wettable Powder (WP) formulations . 8
4.2.5 Solid - Water dispersible granules (WDG) formulations . 8
4.2.6 Solid – Pellets, granules, microgranuls (slow release) formulations . 8
4.2.7 Solid - substrate . 8
4.3 Requirements (apparatus) . 8
4.4 Serial dilution .
...