Plant biostimulants - Determination of the quantity (indicated by mass or volume)

This document specifies the methods to be used for the determination of quantity of solid and liquid forms of plant biostimulants in packages, containers or in bulk.
This document is not applicable to the quantity determination of: soil improvers, growing media, organic and organo-mineral fertilizers and fertilizing product blends whose main constituent is a growing media or soil improver. The method for quantity determination for these products is given in EN 15761, EN 15238 and EN 12580.

Pflanzen-Biostimulanzien - Bestimmung der Menge (durch Angabe der Masse oder des Volumens)

In diesem Dokument werden die Verfahren festgelegt, die zur Bestimmung der Menge von in fester und flüssiger Form und in Packungen, Behältern oder in loser Schüttung vorliegenden Pflanzen-Biostimulanzien zu verwenden sind.
Dieses Dokument ist nicht anwendbar auf die Bestimmung der Menge von: Bodenverbesserungsmitteln, Kultursubstraten, organischen und organisch mineralischen Düngemitteln und Mischungen von Düngeprodukten, deren Hauptbestandteil ein Kultursubstrat oder Bodenverbesserungsmittel ist. Das Verfahren zur Bestimmung der Menge bei diesen Produkten wird in EN 15761, EN 15238 und EN 12580 beschrieben.

Biostimulants des végétaux - Détermination de la quantité (indiquée en masse ou en volume)

Le présent document spécifie les méthodes à utiliser pour la détermination de la quantité de biostimulants des végétaux sous forme solide et liquide dans des emballages, des conteneurs ou en gros.
Le présent document ne s’applique pas à la détermination de la quantité de ce qui suit : amendements du sol, supports de culture, engrais organiques et organo-minéraux et combinaisons de fertilisants dont le principal composant est un support de culture ou un amendement du sol. La méthode de détermination de la quantité pour ces produits est fournie dans l’EN 15761, l’EN 15238 et l’EN 12580.

Rastlinski biostimulanti - Določanje količine (mase ali prostornine)

General Information

Status
Published
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
23-Mar-2022
Completion Date
23-Mar-2022

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SLOVENSKI STANDARD
kSIST-TS FprCEN/TS 17725:2021
01-november-2021
Rastlinski biostimulansi - Določanje količine (preko mase ali prostornine)

Plant biostimulants - Determination of the quantity (indicated by mass or volume)

Biostimulanzien für die pflanzliche Anwendung - Bestimmung der Menge (durch Angabe

der Masse oder des Volumens)
Ta slovenski standard je istoveten z: FprCEN/TS 17725
ICS:
65.080 Gnojila Fertilizers
kSIST-TS FprCEN/TS 17725:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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kSIST-TS FprCEN/TS 17725:2021
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kSIST-TS FprCEN/TS 17725:2021
FINAL DRAFT
TECHNICAL SPECIFICATION
FprCEN/TS 17725
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
September 2021
ICS 65.080
English Version
Plant biostimulants - Determination of the quantity
(indicated by mass or volume)
Biostimulanzien für die pflanzliche Anwendung -
Bestimmung der Menge (durch Angabe der Masse oder
des Volumens)

This draft Technical Specification is submitted to CEN members for Vote. It has been drawn up by the Technical Committee

CEN/TC 455.

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, Turkey 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 Technical Specification. It is distributed for review and comments. It is subject to change

without notice and shall not be referred to as a Technical Specification.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprCEN/TS 17725:2021 E

worldwide for CEN national Members.
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kSIST-TS FprCEN/TS 17725:2021
FprCEN/TS 17725:2021 (E)
Contents Page

European foreword ............................................................................................................................... 3

Introduction ............................................................................................................................................ 4

1 Scope ............................................................................................................................................ 5

2 Normative references ............................................................................................................ 5

3 Terms and definitions ........................................................................................................... 5

4 Method of quantity determination ................................................................................... 6

4.1 Quantity declaration .............................................................................................................. 6

4.2 Determination of quantity of product in solid and liquid form when sold by

mass.............................................................................................................................................. 7

4.2.1 Apparatus ................................................................................................................................... 7

4.2.2 Equipment checks ................................................................................................................... 7

4.2.3 Method ........................................................................................................................................ 7

4.3 Determination of quantity of product in liquid form when sold by volume ...... 8

4.3.1 Apparatus ................................................................................................................................... 8

4.3.2 Equipment check ..................................................................................................................... 8

4.3.3 Determination of density ..................................................................................................... 9

4.3.4 Method ...................................................................................................................................... 12

4.4 Determination of quantity of product in solid form when sold by volume ...... 12

4.5 Plant biostimulant in package marked in both mass and volume ...................... 13

Annex A (normative) Scale Intervals ............................................................................................ 14

Bibliography .......................................................................................................................................... 15

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kSIST-TS FprCEN/TS 17725:2021
FprCEN/TS 17725:2021 (E)
European foreword
This document (FprCEN/TS 17725:2021) 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 Vote on TS.

This document has been prepared under a Standardization Request given to CEN by the European

Commission and the European Free Trade Association.
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kSIST-TS FprCEN/TS 17725:2021
FprCEN/TS 17725:2021 (E)
Introduction

This document specifies the methods to be used for the determination of quantity of plant

biostimulants products sold or offered for sale. It is relevant to the quantity declarations given in

European Regulation 2019/1009. Wherever possible quantity determination checks shall be

carried out at the premises of the packer/importer/seller.

This document has been prepared under a Standardization Request given to CEN by the European

Commission and the European Free Trade Association, and supports essential requirements of EU

Directive(s) / Regulation(s).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 fertilising products (“FPR” or “Fertilising

Products Regulation”). This request, presented as SReq M/564, also contributes to the

Communication on “Innovating for Sustainable Growth: A Bio economy for Europe”. The Working

Group 5 “Labelling and denominations”, was created to develop a work program as part of this

request.

The technical committee CEN/TC 455 ‘Plant Biostimulants’ was established to carry out the work

program that will prepare a series of standards. The interest in 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 improving the confidence of farmers,

industry, and consumers in biostimulants, and will promote and support commercialization of the

European biostimulant industry.
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kSIST-TS FprCEN/TS 17725:2021
FprCEN/TS 17725:2021 (E)
1 Scope

This document specifies the methods to be used for the determination of quantity of solid and

liquid forms of Plant biostimulants in packages, containers or in bulk.

This document is not applicable to the quantity determination of: Soil improvers, growing media,

organic and organo-mineral fertilizers and fertilizing product blends whose main constituent is a

growing media or soil improver. The method for quantity determination for these products is

given in EN 15761, EN 15238 and EN 12580.
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.

FprCEN/TS 17702-1, Plant Biostimulants - Sampling and sample preparation – Part 1: Sampling

FprCEN/TS 17724, Plant Biostimulants - Terminology
EN 45501:2015, Metrological aspects of non-automatic weighing instruments
3 Terms and definitions

For the purposes of this document, the terms and definitions given in FprCEN/TS 17724 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
liquid form

suspension or solution, where a suspension is a two- phase dispersion in which solid particles are

maintained in suspension in the liquid phase
3.2
solution
liquid that is free of solid particles, or a gel and includes pastes
Note to entry 1: “liquids” include products in liquid form and solutions.
3.3
solid form

form characterized by structural rigidity and resistance to changes of shape or volume and in

which atoms are tightly bound to each other, either in a regular geometric lattice (crystalline

solids) or in an irregular manner (an amorphous solid)
3.4
weighing instrument

instrument serving to determine the mass of a body by using the action of gravity on that body

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kSIST-TS FprCEN/TS 17725:2021
FprCEN/TS 17725:2021 (E)
3.5
non automatic weighing instrument

weighing instrument requiring the intervention of an operator during the weighing process to

decide that the weighing result is acceptable
3.6
nominal quantity
nominal weight or nominal volume

mass or volume indicated on the prepackage, i.e. the quantity of product which the prepackage is

deemed to contain
3.7
net quantity
actual mass or volume of the contents which a package contains
3.8
gross quantity
actual mass of the package plus contents
3.9
bulk material
material that is not packaged
3.10
package
container and its contents
3.11
container

closed receptacle directly in contact with a plant biostimulant whereby the plant biostimulant

may be transported or stored in unit quantities
EXAMPLE Road tanker, lorry, ship or boat, bag, bottle, tank, barrel.
4 Method of quantity determination
4.1 Quantity declaration

The quantity in terms of mass or volume of plant biostimulant shall be at least the nominal

quantity stated on the container or documentation associated with the product. The unit of

measurement (weight or volume) used for the quantity declaration should comply with national

regulations where they exist.
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kSIST-TS FprCEN/TS 17725:2021
FprCEN/TS 17725:2021 (E)
4.2 Determination of quantity of product in solid and liquid form when sold by
mass
4.2.1 Apparatus
A suitable weighing instrument.

“Suitable” means of a type sufficiently accurate to determine the actual quantity of the product

(gross weight) and mass of the packaging used so that a net quantity of the contents can be

determined.

“Suitable type” means an instrument that complies with the requirements of EN 45501:2015.

“Sufficiently accurate” means that the scale intervals and sensitivity of the instrument are

appropriate to detect the quantity of the product and of the package/wrapping. This will depend

on the nominal quantity of plant biostimulant being weighed.
NOTE An indication of appropriate maximum scale interval is given in Annex A.
4.2.2 Equipment checks

Before using the weighing machine to establish the quantity of a plant biostimulant the machine

should be checked for accuracy with weights which comply with OIML R111 and having an

accuracy tolerance of one third the maximum error for the weighing machine under test. The tests

are laid down out EN 45501:2015.
A record should be kept of the results of the tests.

NOTE Because half a graduation can be read on an analogue indicator weighing instrument weight

display, digital instruments will need to indicate 50 % of those for an analogue graduation.

4.2.3 Method
4.2.3.1 Packages under 25 kg

Place the package on the weighing plate of the weighing instrument and record the mass shown

(x).

Weigh 10 randomly selected empty containers (non-destructive testing) or if empty containers

are not available empty 10 randomly selected containers already weighed after ensuring no

product remains in or on the containers (destructive testing).

NOTE Because of the small mass of the containers, a more sensitive weighing instrument can be used

for this operation see Annex A.

Record the masses and obtain an average mass of the containers (y). Record the calculation and

result.

Subtract the mean mass of the container from the gross quantity of each packed fertilizing product

and calculate and record each net quantity (z) using Formula (1).
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kSIST-TS FprCEN/TS 17725:2021
FprCEN/TS 17725:2021 (E)
z x− y (1)
where
z is the net quantity by mass of the contents of an individual package in g;
x is the gross quantity by mass of an individual package in g;
y is the mean mass of the empty containers in g.
4.2.3.2 Packages/containers 25 kg to 1 ton

These are containers which cannot be manually handled and require larger capacity weighing

instruments to ascertain their gross weight.
The
...

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