oSIST prEN 17702-2:2023
(Main)Plant biostimulants - Sampling and sample preparation - Part 2: Sample preparation
Plant biostimulants - Sampling and sample preparation - Part 2: Sample preparation
This European Standard specifies methods for the reduction and preparation of samples of non-microbial plant biostimulants including those intended for determination of microbial pathogens and sets out the requirements for sample preparation reports. It specifies methods for the preparation of test samples and test portions from laboratory samples of plant biostimulants for subsequent chemical, biological or physical analysis.
It is also applicable to the sample preparation of blends of fertilizing products where plant biostimulants are main part of the blend. Otherwise, deliverables of sample preparation relevant for the main part of the blend apply.
This European Standard does not include methods for the reduction and preparation of samples of microbial plant biostimulants and will be covered by a different Technical specification.
NOTE This European standard is applicable to the category of EU fertilizing product (plant biostimulants) in the meaning of the Regulation (EU) 2019/1009.
Pflanzen-Biostimulanzien - Probenahme und Probenvorbereitung - Teil 2: Probenvorbereitung
Dieses Dokument legt Verfahren zur Reduzierung und Vorbereitung von Proben von nicht-mikrobiellen Pflanzen-Biostimulanzien, einschließlich solcher, die für die Bestimmung von mikrobiellen Pathogenen vorgesehen sind, fest und regelt die Anforderungen an Berichte zur Probenvorbereitung. Es legt Verfahren zur Herstellung von Untersuchungsproben und Prüfmengen aus Laborproben von Pflanzen-Biostimulanzien für nachfolgende chemische, biologische oder physikalische Analysen fest.
Es ist zudem auf die Probenvorbereitung aus Mischungen von Düngemittelprodukten, bei denen Pflanzen-Biostimulanzien den Hauptbestandteil der Mischung darstellen, anwendbar. Andernfalls gelten die für den Hauptbestandteil der Mischung relevanten Vorgaben für die Probenvorbereitung.
Dieses Dokument umfasst keine Verfahren zur Reduzierung und Vorbereitung von Proben von mikrobiellen Pflanzen-Biostimulanzien; dies wird von einer anderen Europäischen Norm abgedeckt.
ANMERKUNG Dieses Dokument ist anwendbar auf die Kategorie von EU Düngeprodukten (Pflanzen-Biostimulanzien) im Sinne der Verordnung (EU) 2019/1009.
Biostimulants des végétaux - Échantillonnage et préparation des échantillons - Partie 2: Préparation des échantillons
Le présent document spécifie des méthodes de réduction et de préparation des échantillons de biostimulants non microbiens des végétaux, y compris celles conçues pour la détermination des pathogènes microbiens, et précise les exigences relatives aux rapports de préparation des échantillons. Il spécifie des méthodes de préparation des échantillons pour essai et de prises d’essai à partir d’échantillons pour laboratoire de biostimulants des végétaux en vue d’une analyse chimique, biologique ou physique ultérieure.
Il est également applicable à la préparation des échantillons de mélanges de fertilisants dans lesquels les biostimulants des végétaux représentent la majorité du mélange. Dans le cas contraire, ce sont les livrables de la préparation d’échantillons pertinents pour le fertilisant majoritairement présent dans le mélange qui s’appliquent.
Le présent document n’inclut pas de méthodes de réduction et de préparation des échantillons de biostimulants microbiens des végétaux. Ces derniers seront couverts par une autre Norme européenne.
NOTE Le présent document est applicable à la catégorie de fertilisants UE (biostimulants des végétaux) au sens du Règlement (UE) 2019/1009.
Rastlinski biostimulanti - Vzorčenje in priprava vzorcev - 2. del: Priprava vzorcev
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 17702-2:2023
01-maj-2023
Rastlinski biostimulanti - Vzorčenje in priprava vzorcev - 2. del: Priprava vzorcev
Plant biostimulants - Sampling and sample preparation - Part 2: Sample preparation
Pflanzen-Biostimulanzien - Probenahme und Probenvorbereitung - Teil 2:
Probenvorbereitung
Biostimulants des végétaux - Échantillonnage et préparation des échantillons - Partie 2:
Préparation des échantillons
Ta slovenski standard je istoveten z: prEN 17702-2
ICS:
65.080 Gnojila Fertilizers
oSIST prEN 17702-2:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 17702-2:2023
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oSIST prEN 17702-2:2023
DRAFT
EUROPEAN STANDARD
prEN 17702-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2023
ICS 65.080 Will supersede CEN/TS 17702-2:2022
English Version
Plant biostimulants - Sampling and sample preparation -
Part 2: Sample preparation
Biostimulants des végétaux - Échantillonnage et Pflanzen-Biostimulanzien - Probenahme und
préparation des échantillons - Partie 2 : Préparation Probenvorbereitung - Teil 2: Probenvorbereitung
des échantillons
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 NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
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 17702-2:2023 E
worldwide for CEN national Members.
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prEN 17702-2:2023 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principle . 6
5 Apparatus . 6
6 Procedure . 7
6.1 General. 7
6.2 Preparation of test samples in their original condition . 7
6.3 Further preparation of test samples which are to remain in their original condition 8
6.3.1 General. 8
6.3.2 Preparation of test portions for physical testing . 8
6.3.3 Preparation of test portions for moisture analysis . 8
6.3.4 Preparation of test portions for other chemical analyses . 8
6.4 Further preparation of test samples for chemical and biological analysis . 8
6.4.1 General. 8
6.4.2 Use of sample grinder. 9
6.4.3 Use of mortar and pestle . 9
6.5 Products which are difficult to grind mechanically . 9
6.6 Organic matter . 9
6.7 Plant biostimulants comprising several different materials . 9
6.8 Liquid plant biostimulants . 9
6.9 Foreign matter . 9
6.10 Storage . 9
6.11 Taking test portions . 10
6.11.1 Solid plant biostimulants . 10
6.11.2 Liquid plant biostimulants . 10
7 Labelling . 10
8 Sample preparation report . 10
Bibliography . 11
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prEN 17702-2:2023 (E)
European foreword
This document (prEN 17702-2:2023) has been prepared by Technical Committee CEN/TC 455 “Plant
biostimulants”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede CEN/TS 17702-2:2022.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
The EN 17702 series, Plant biostimulants — Sampling and sample preparation, consists of the following
parts:
— Part 1: Sampling;
— Part 2: Sample preparation.
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Introduction
This document was prepared by the experts of CEN/TC 455 “Plant biostimulants”. The European
Committee for Standardization (CEN) was requested by the European Commission (EC) to draft
European standards or European standardization deliverables to support the implementation of
Regulation (EU) 2019/1009 of 5 June 2019 laying down rules on the making available on the market of
EU fertilizing products (“FPR” or “Fertilizing Products Regulation”).
This standardization request, presented as M/564 and M/564 Amd1, also contributes to the
Communication on “Innovating for Sustainable Growth: A Bio economy for Europe”. The Working Group
1 “Sampling” was created to develop a work programme as part of this request. The technical committee
CEN/TC 455 “Plant biostimulants” was established to carry out the work programme that will prepare a
series of standards. The interest in plant biostimulants has increased significantly in Europe as a valuable
tool to use in agriculture. Standardization was identified as having an important role in order to promote
the use of biostimulants. The work of CEN/TC 455 seeks to improve the reliability of the supply chain,
thereby boosting the confidence of farmers, industry, and consumers in plant biostimulants, and will
promote and support commercialisation of the European biostimulant industry.
This document covers the following aspects of sample preparation, derived from EN 1482-2:2007. This
document is presented in a form adapted to the specificity of plant biostimulants. The title of the standard
is given in the Bibliography.
This document is addressed mainly to official laboratories which intend to perform analysis for quality
and safety control of non-microbial plant biostimulants. The laboratories will have a reference document
on how to properly prepare sample for analysis.
Figure 1 gives a schematic diagram of the sampling and sample preparation process.
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Figure 1 — Schematic diagram of process of sample preparation for solid plant biostimulants
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1 Scope
This document specifies methods for the reduction and preparation of samples of non-microbial plant
biostimulants including those intended for determination of microbial pathogens and sets out the
requirements for sample preparation reports. It specifies methods for the preparation of test samples
and test portions from laboratory samples of plant biostimulants for subsequent chemical, biological or
physical analysis.
It is also applicable to the sample preparation of blends of fertilizing products where plant biostimulants
are main part of the blend. Otherwise, deliverables of sample preparation relevant for the main part of
the blend apply.
This document does not include methods for the reduction and preparation of samples of microbial plant
biostimulants, which will be covered by a different European Standard.
NOTE This document is applicable to the category of EU fertilizing product (plant biostimulants) in the
meaning of Regulation (EU) 2019/1009.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
1
EN 17702-1:— , Plant biostimulants — Sampling and sample preparation — Part 1: Sampling
ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
test sample
sample prepared from the laboratory sample and from which test portions will be taken
...
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