FprEN 17744

SLOVENSKI STANDARD
01-november-2022
Kmetijski in gozdarski stroji - Okoljevarstvene zahteve za prašilnike
Agricultural and forestry machinery - Environmental requirements for dusters
Land- und forstwirtschaftliche Maschinen - Umweltanforderungen an Stäubegeräte
Matériel agricole et forestier - Exigences environnementales relatives aux poudreuses
Ta slovenski standard je istoveten z: prEN 17744
ICS:
65.060.40 Oprema za nego rastlin Plant care equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 17744
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2022
ICS 65.060.40
English Version
Agricultural and forestry machinery - Environmental
requirements for dusters
Matériel agricole et forestier - Exigences Land- und forstwirtschaftliche Maschinen -
environnementales relatives aux poudreuses Umweltanforderungen an Stäubegeräte
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 144.
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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17744:2022 E
worldwide for CEN national Members.

prEN 17744:2022 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 5
4.1 General. 5
4.2 Hopper(s) . 6
4.3 Fan . 7
4.4 Electrostatic discharge device . 7
4.5 Measuring systems, controls and regulation systems . 7
4.6 Outlets . 7
5 Test methods . 7
5.1 Test materials and equipment . 7
5.2 Estimation of the hopper maximum capacity . 8
5.3 Estimation of hopper graduation scale . 8
5.4 Residual volume of the hopper . 8
5.5 Control of the tightness of the hopper and the lid . 9
5.6 Measurement of the fan rotation speed . 9
5.7 Measurement of the air speed symmetry on the two sides of the duster . 9
6 Operator manual . 10
Annex A (informative) Check of the air speed symmetry on the two side of the duster . 11
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2006/42/EC aimed to be covered . 12
Bibliography . 13

prEN 17744:2022 (E)
European foreword
This document (prEN 17744:2022) has been prepared by Technical Committee CEN/TC 144 “Tractors
and machinery for agriculture and forestry”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
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).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
prEN 17744:2022 (E)
Introduction
The Amendment of the Machinery Directive considers also the environmental requirements of the
equipment for the pesticide application (PAE).
To allow to fulfil these requirements, the harmonized standard series EN 16119 has been produced.
However, these standards do not include the dusters that are widely distributed in Europe and abroad.
This document defines the environmental requirements of the dusters and the methods to measure them.
It will help duster manufacturers in fulfilling the environmental requirements mentioned in the
Amendment of the Machinery Directive.
This document is a type-C standard as stated in EN ISO 12100. This document is of relevance, in
particular, for the following stakeholder groups representing the market players with regard to
machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organizations, market surveillance etc.).
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document. The machinery concerned and the extent to which hazards, hazardous
situations or hazardous events are covered are indicated in the Scope of this document. When
requirements of this type-C standard are different from those which are stated in type-A or type-B
standards, the requirements of this type-C standard take precedence over the requirements of the other
standards for machines that have been designed and built according to the requirements of this type-C
standard.
prEN 17744:2022 (E)
1 Scope
This document specifies general requirements and their test methods for dusters for applying formulated
products in the form of dust with regard to minimizing the potential risk of environmental contamination
during use.
Hand operated portable dusters (knapsack) are not included in this document.
This document deals with all the significant environmental hazards related to the duster.
This document is not applicable to dusters manufactured before the date of its publication.
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.
ISO 5681:2020, Equipment for crop protection — Vocabulary
ISO 9357:1990, Equipment for crop protection — Agricultural sprayers — Tank nominal volume and filling
hole diameter
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5681:2020 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
duster
appliance for applying formulated products in the form of dust
3.2
device for dust extraction
mechanism which allows the transfer of the dust from the hopper to the outlets in a constant
predetermined flow rate
3.3
hopper nominal capacity
volume indicated by the maximum filling level marked on the hopper when placed on a level horizontal
surface
4 Requirements
4.1 General
Duster and their components shall be reliable and so designed that they can be used in accordance with
their intended use as described in the operator manual, in order to minimize the potential risk of
environmental contamination.
It shall be possible to connect the necessary measuring instruments to the duster to check its functioning.
prEN 17744:2022 (E)
Duster shall be designed so that a suitable distribution and deposition can be achieved. This shall be
characterized by minimizing losses to non-target areas.
The duster shall be designed and constructed to minimize losses of plant protection products during
application and after the application function has been switched off.
It shall be designed and constructed to facilitate the changing of worn parts without contaminating the
environment.
Compliance shall be checked by (visual inspection, measurements, functional test, or testing) as
appropriate according to Clause 5.
4.2 Hopper(s)
4.2.1 Filling opening
It shall be present a system able to minimize the risk that undesirable materials of more than 20 mm will
cause blockages (for example presence of a grid, deflector) and influence the flow rate or transversal
distribution in a negative way.
The filling hole diameter of the hopper shall at least comply with ISO 9357:1990.
It shall be present a system able to minimize the risk that undesirable materials of more than 20 mm will
cause blockages (for example presence of a grid, deflector) and influence the flow rate or transversal
distribution in a negative way.
The filling hole diameter of the hopper shall at least comply with ISO 9357:1990.
4.2.2 Capacity
The hopper’s total capacity shall be at least 5 % more than its nominal capacity as determined in 5.2.
4.2.3 Level indicator
It shall be possible to determine the level of product that is in the hopper.
The scale shall cover at least 10 % to 100 % of the nominal volume and have a graduation for at least each
10 % of the nominal volume for hoppers with >600 l capacity.
Hoppers within 100 l to 600 l capacity shall have a graduation for each 20 % of the nominal volume.
Hoppers with <100 l capacity shall have a graduation for each 30 % of the nominal volume.
These requirements are not applied to hoppers with ≤ 30 l capacity as indicated in 5.3.
The accuracy of the graduation marks shall be within ± 15% of the actual value as indicated in 5.3.
4.2.4 Lid
The hopper shall be equipped with a suitable lid that can close tightly to prevent any accidental opening
and prevent the dispersion of material and protect the content against entry of water or dust.
In duster with pneumatic extraction system the lid shall be tight (pressure hopper).
This shall be checked following 5.5.
4.2.5 Accessibility
Hopper(s) shall be designed and mounted on the duster to be accessible in a safe way as indicated below.
The filling hole of the hopper shall be so positioned that the height from the ground or platform is not
more than 1 250 mm.
The horizontal reach between the rim of the hole and the outer edge of any part of the sprayer which
could hinder the operator shall not be more than 300 mm at the operator filling position.
prEN 17744:2022 (E)
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